mmotm 2010-12-23-16-58 uploaded

mmotm 2010-12-23-16-58 uploaded

[akpm]

The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to

   http://userweb.kernel.org/~akpm/mmotm/

and will soon be available at

   git://zen-kernel.org/kernel/mmotm.git

It contains the following patches against 2.6.37-rc7:

origin.patch
linux-next.patch
linux-next-git-rejects.patch
next-remove-localversion.patch
i-need-old-gcc.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
ima-fix-add-lsm-rule-bug.patch
keys-dont-call-up_write-if-__key_link_begin-returns-an-error.patch
arch-alpha-include-asm-ioh-s-extern-inline-static-inline.patch
memblock-fix-memblock_is_region_memory.patch
mm-vmap-area-cache.patch
pata_mpc52xx-driver-needs-bmdma.patch
backlight-fix-88pm860x_bl-macro-collision.patch
cciss-fix-botched-tag-masking-for-scsi-tape-commands.patch
arch-x86-oprofile-op_model_amdc-perform-initialisation-on-a-single-cpu.patch
acerhdf-add-support-for-aspire-1410-bios-v13314.patch
arm-translate-delays-into-mostly-c.patch
arm-allow-machines-to-override-__delay.patch
arm-implement-a-timer-based-__delay-loop.patch
msm-timer-migrate-to-timer-based-__delay.patch
fs-btrfs-inodec-eliminate-memory-leak.patch
btrfs-dont-dereference-extent_mapping-if-null.patch
cpufreq-fix-ondemand-governor-powersave_bias-execution-time-misuse.patch
debugfs-remove-module_exit.patch
drivers-gpu-drm-radeon-atomc-fix-warning.patch
irq-use-per_cpu-kstat_irqs.patch
modpost-fix-address-calculation-in-reloc_location.patch
drivers-leds-leds-lp5521c-fix-potential-buffer-overflow.patch
leds-leds-pca9532-cleanups.patch
leds-route-kbd-leds-through-the-generic-leds-layer.patch
mips-enable-arch_dma_addr_t_64bit-with-highmem-64bit_phys_addr-64bit.patch
isdn-capi-unregister-capictr-notifier-after-init-failure.patch
isdn-capi-make-kcapi-use-a-separate-workqueue.patch
drivers-video-backlight-l4f00242t03c-make-1-bit-signed-field-unsigned.patch
drivers-video-backlight-l4f00242t03c-full-implement-fb-power-states-for-this-lcd.patch
drivers-video-backlight-l4f00242t03c-prevent-unbalanced-calls-to-regulator-enable-disable.patch
btusb-patch-add_apple_macbookpro62.patch
atmel_serial-fix-rts-high-after-initialization-in-rs485-mode.patch
atmel_serial-fix-rts-high-after-initialization-in-rs485-mode-fix.patch
drivers-message-fusion-mptsasc-fix-warning.patch
scsi-fix-a-header-to-include-linux-typesh.patch
drivers-block-makefile-replace-the-use-of-module-objs-with-module-y.patch
drivers-block-aoe-makefile-replace-the-use-of-module-objs-with-module-y.patch
vfs-remove-a-warning-on-open_fmode.patch
vfs-add-__fmode_exec.patch
fs-make-block-fiemap-mapping-length-at-least-blocksize-long.patch
n_hdlc-fix-read-and-write-locking.patch
n_hdlc-fix-read-and-write-locking-update.patch
mm.patch
mm-page-allocator-adjust-the-per-cpu-counter-threshold-when-memory-is-low.patch
mm-vmstat-use-a-single-setter-function-and-callback-for-adjusting-percpu-thresholds.patch
mm-vmstat-use-a-single-setter-function-and-callback-for-adjusting-percpu-thresholds-fix.patch
mm-vmstat-use-a-single-setter-function-and-callback-for-adjusting-percpu-thresholds-update.patch
mm-vmstat-use-a-single-setter-function-and-callback-for-adjusting-percpu-thresholds-fix-set_pgdat_percpu_threshold-dont-use-for_each_online_cpu.patch
writeback-integrated-background-writeback-work.patch
writeback-trace-wakeup-event-for-background-writeback.patch
writeback-stop-background-kupdate-works-from-livelocking-other-works.patch
writeback-stop-background-kupdate-works-from-livelocking-other-works-update.patch
writeback-avoid-livelocking-wb_sync_all-writeback.patch
writeback-avoid-livelocking-wb_sync_all-writeback-update.patch
writeback-check-skipped-pages-on-wb_sync_all.patch
writeback-check-skipped-pages-on-wb_sync_all-update.patch
writeback-check-skipped-pages-on-wb_sync_all-update-fix.patch
writeback-io-less-balance_dirty_pages.patch
writeback-consolidate-variable-names-in-balance_dirty_pages.patch
writeback-per-task-rate-limit-on-balance_dirty_pages.patch
writeback-per-task-rate-limit-on-balance_dirty_pages-fix.patch
writeback-prevent-duplicate-balance_dirty_pages_ratelimited-calls.patch
writeback-account-per-bdi-accumulated-written-pages.patch
writeback-bdi-write-bandwidth-estimation.patch
writeback-bdi-write-bandwidth-estimation-fix.patch
writeback-show-bdi-write-bandwidth-in-debugfs.patch
writeback-quit-throttling-when-bdi-dirty-pages-dropped-low.patch
writeback-reduce-per-bdi-dirty-threshold-ramp-up-time.patch
writeback-make-reasonable-gap-between-the-dirty-background-thresholds.patch
writeback-scale-down-max-throttle-bandwidth-on-concurrent-dirtiers.patch
writeback-add-trace-event-for-balance_dirty_pages.patch
writeback-make-nr_to_write-a-per-file-limit.patch
writeback-make-nr_to_write-a-per-file-limit-fix.patch
sync_inode_metadata-fix-comment.patch
mm-page-writebackc-fix-__set_page_dirty_no_writeback-return-value.patch
vmscan-factor-out-kswapd-sleeping-logic-from-kswapd.patch
mm-find_get_pages_contig-fixlet.patch
fs-mpagec-consolidate-code.patch
fs-mpagec-consolidate-code-checkpatch-fixes.patch
mm-convert-sprintf_symbol-to-%ps.patch
mm-smaps-export-mlock-information.patch
mm-compaction-add-trace-events-for-memory-compaction-activity.patch
mm-vmscan-convert-lumpy_mode-into-a-bitmask.patch
mm-vmscan-reclaim-order-0-and-use-compaction-instead-of-lumpy-reclaim.patch
mm-vmscan-reclaim-order-0-and-use-compaction-instead-of-lumpy-reclaim-fix.patch
mm-migration-allow-migration-to-operate-asynchronously-and-avoid-synchronous-compaction-in-the-faster-path.patch
mm-migration-allow-migration-to-operate-asynchronously-and-avoid-synchronous-compaction-in-the-faster-path-fix.patch
mm-migration-cleanup-migrate_pages-api-by-matching-types-for-offlining-and-sync.patch
mm-compaction-perform-a-faster-migration-scan-when-migrating-asynchronously.patch
mm-vmscan-rename-lumpy_mode-to-reclaim_mode.patch
mm-vmscan-rename-lumpy_mode-to-reclaim_mode-fix.patch
mm-deactivate-invalidated-pages.patch
mm-deactivate-invalidated-pages-fix.patch
mm-remove-unused-get_vm_area_node.patch
mm-remove-gfp-mask-from-pcpu_get_vm_areas.patch
mm-unify-module_alloc-code-for-vmalloc.patch
oom-allow-a-non-cap_sys_resource-proces-to-oom_score_adj-down.patch
mm-clear-pageerror-bit-in-msync-fsync.patch
do_wp_page-remove-the-reuse-flag.patch
do_wp_page-clarify-dirty_page-handling.patch
mlock-avoid-dirtying-pages-and-triggering-writeback.patch
mlock-only-hold-mmap_sem-in-shared-mode-when-faulting-in-pages.patch
mlock-only-hold-mmap_sem-in-shared-mode-when-faulting-in-pages-fix.patch
mm-add-foll_mlock-follow_page-flag.patch
mm-move-vm_locked-check-to-__mlock_vma_pages_range.patch
mlock-do-not-hold-mmap_sem-for-extended-periods-of-time.patch
mlock-do-not-hold-mmap_sem-for-extended-periods-of-time-fix.patch
mlock-do-not-hold-mmap_sem-for-extended-periods-of-time-fix2.patch
mempolicy-remove-tasklist_lock-from-migrate_pages.patch
vmalloc-remove-redundant-unlikely.patch
mm-remove-likely-from-mapping_unevictable.patch
mm-remove-unlikely-from-page_mapping.patch
mm-remove-likely-from-grab_cache_page_write_begin.patch
mm-kswapd-stop-high-order-balancing-when-any-suitable-zone-is-balanced.patch
mm-kswapd-keep-kswapd-awake-for-high-order-allocations-until-a-percentage-of-the-node-is-balanced.patch
mm-kswapd-use-the-order-that-kswapd-was-reclaiming-at-for-sleeping_prematurely.patch
mm-kswapd-reset-kswapd_max_order-and-classzone_idx-after-reading.patch
mm-kswapd-treat-zone-all_unreclaimable-in-sleeping_prematurely-similar-to-balance_pgdat.patch
mm-kswapd-use-the-classzone-idx-that-kswapd-was-using-for-sleeping_prematurely.patch
mm-set-correct-numa_zonelist_order-string-when-configured-on-the-kernel-command-line.patch
thp-ksm-free-swap-when-swapcache-page-is-replaced.patch
thp-fix-bad_page-to-show-the-real-reason-the-page-is-bad.patch
thp-transparent-hugepage-support-documentation.patch
thp-mm-define-madv_hugepage.patch
thp-compound_lock.patch
thp-alter-compound-get_page-put_page.patch
thp-put_page-recheck-pagehead-after-releasing-the-compound_lock.patch
thp-update-futex-compound-knowledge.patch
thp-clear-compound-mapping.patch
thp-add-native_set_pmd_at.patch
thp-add-pmd-paravirt-ops.patch
thp-no-paravirt-version-of-pmd-ops.patch
thp-export-maybe_mkwrite.patch
thp-comment-reminder-in-destroy_compound_page.patch
thp-config_transparent_hugepage.patch
thp-config_transparent_hugepage-fix.patch
thp-special-pmd_trans_-functions.patch
thp-add-pmd-mangling-generic-functions.patch
thp-add-pmd-mangling-generic-functions-fix-pgtableh-build-for-um.patch
thp-add-pmd-mangling-functions-to-x86.patch
thp-bail-out-gup_fast-on-splitting-pmd.patch
thp-pte-alloc-trans-splitting.patch
thp-pte-alloc-trans-splitting-fix.patch
thp-pte-alloc-trans-splitting-fix-checkpatch-fixes.patch
thp-add-pmd-mmu_notifier-helpers.patch
thp-clear-page-compound.patch
thp-add-pmd_huge_pte-to-mm_struct.patch
thp-split_huge_page_mm-vma.patch
thp-split_huge_page-paging.patch
thp-clear_copy_huge_page.patch
thp-kvm-mmu-transparent-hugepage-support.patch
thp-_gfp_no_kswapd.patch
thp-dont-alloc-harder-for-gfp-nomemalloc-even-if-nowait.patch
thp-transparent-hugepage-core.patch
thp-split_huge_page-anon_vma-ordering-dependency.patch
thp-verify-pmd_trans_huge-isnt-leaking.patch
thp-madvisemadv_hugepage.patch
thp-add-pagetranscompound.patch
thp-pmd_trans_huge-migrate-bugcheck.patch
thp-memcg-compound.patch
thp-transhuge-memcg-commit-tail-pages-at-charge.patch
thp-memcg-huge-memory.patch
thp-transparent-hugepage-vmstat.patch
thp-khugepaged.patch
thp-khugepaged-vma-merge.patch
thp-skip-transhuge-pages-in-ksm-for-now.patch
thp-remove-pg_buddy.patch
thp-add-x86-32bit-support.patch
thp-mincore-transparent-hugepage-support.patch
thp-add-pmd_modify.patch
thp-mprotect-pass-vma-down-to-page-table-walkers.patch
thp-mprotect-transparent-huge-page-support.patch
thp-set-recommended-min-free-kbytes.patch
thp-enable-direct-defrag.patch
thp-add-numa-awareness-to-hugepage-allocations.patch
thp-allocate-memory-in-khugepaged-outside-of-mmap_sem-write-mode.patch
thp-allocate-memory-in-khugepaged-outside-of-mmap_sem-write-mode-fix.patch
thp-transparent-hugepage-config-choice.patch
thp-select-config_compaction-if-transparent_hugepage-enabled.patch
thp-transhuge-isolate_migratepages.patch
thp-avoid-breaking-huge-pmd-invariants-in-case-of-vma_adjust-failures.patch
thp-dont-allow-transparent-hugepage-support-without-pse.patch
thp-mmu_notifier_test_young.patch
thp-freeze-khugepaged-and-ksmd.patch
thp-use-compaction-in-kswapd-for-gfp_atomic-order-0.patch
thp-use-compaction-for-all-allocation-orders.patch
thp-disable-transparent-hugepages-by-default-on-small-systems.patch
thp-fix-anon-memory-statistics-with-transparent-hugepages.patch
thp-scale-nr_rotated-to-balance-memory-pressure.patch
thp-transparent-hugepage-sysfs-meminfo.patch
thp-add-debug-checks-for-mapcount-related-invariants.patch
thp-fix-memory-failure-hugetlbfs-vs-thp-collision.patch
thp-compound_trans_order.patch
thp-compound_trans_order-fix.patch
thp-mm-define-madv_nohugepage.patch
thp-madvisemadv_nohugepage.patch
thp-khugepaged-make-khugepaged-aware-of-madvise.patch
thp-khugepaged-make-khugepaged-aware-of-madvise-fix.patch
mm-migration-use-rcu_dereference_protected-when-dereferencing-the-radix-tree-slot-during-file-page-migration.patch
mm-migration-use-rcu_dereference_protected-when-dereferencing-the-radix-tree-slot-during-file-page-migration-fix.patch
mm-hugetlbc-fix-error-path-memory-leak-in-nr_hugepages_store_common.patch
mm-hugetlbc-fix-error-path-memory-leak-in-nr_hugepages_store_common-fix.patch
frv-duplicate-output_buffer-of-e03.patch
frv-duplicate-output_buffer-of-e03-checkpatch-fixes.patch
hpet-factor-timer-allocate-from-open.patch
um-mark-config_highmem-as-broken.patch
arch-um-drivers-linec-safely-iterate-over-list-of-winch-handlers.patch
uml-mmapper_kern-needs-module_license.patch
kmsg_dump-constrain-mtdoops-and-ramoops-to-perform-their-actions-only-for-kmsg_dump_panic.patch
kmsg_dump-add-kmsg_dump-calls-to-the-reboot-halt-poweroff-and-emergency_restart-paths.patch
set_rtc_mmss-show-warning-message-only-once.patch
include-linux-kernelh-abs-fix-handling-of-32-bit-unsigneds-on-64-bit.patch
include-linux-kernelh-abs-fix-handling-of-32-bit-unsigneds-on-64-bit-fix.patch
add-the-common-dma_addr_t-typedef-to-include-linux-typesh.patch
toshibah-hide-a-function-prototypes-behind-__kernel__-macro.patch
include-linux-unaligned-packed_structh-use-__packed.patch
kernel-clean-up-use_generic_smp_helpers.patch
mm-numa-aware-alloc_task_struct_node.patch
mm-numa-aware-alloc_thread_info_node.patch
kthread-numa-aware-kthread_create_on_cpu.patch
kthread-use-kthread_create_on_cpu.patch
kptr_restrict-for-hiding-kernel-pointers-from-unprivileged-users.patch
kptr_restrict-for-hiding-kernel-pointers-from-unprivileged-users-fix.patch
kptr_restrict-for-hiding-kernel-pointers-v4.patch
kptr_restrict-for-hiding-kernel-pointers-v6.patch
kptr_restrict-for-hiding-kernel-pointers-v7.patch
kptr_restrict-for-hiding-kernel-pointers-v7-fix.patch
net-convert-%p-usage-to-%pk.patch
dca-remove-unneeded-null-check.patch
include-asm-generic-vmlinuxldsh-make-readmostly-section-correctly-align.patch
percpu-add-new-macros-to-make-percpu-readmostly-section-correctly-align.patch
printk-use-rcu-to-prevent-potential-lock-contention-in-kmsg_dump.patch
include-linux-printkh-move-console-functions-and-variables-together.patch
include-linux-printkh-use-space-after-define.patch
include-linux-printkh-use-and-neaten-no_printk.patch
include-linux-printkh-add-pr_level_once-macros.patch
include-linux-printkh-lib-hexdumpc-neatening-and-add-config_printk-guard.patch
include-linux-printkh-organize-printk_ratelimited-macros.patch
include-linux-printkh-use-tab-not-spaces-for-indent.patch
vfs-remove-unlikely-from-fput_light.patch
vfs-remove-unlikely-from-fget_light.patch
scripts-get_maintainerpl-make-rolestats-the-default.patch
scripts-get_maintainerpl-use-git-fallback-more-often.patch
maintainers-openwrt-devel-is-subscribers-only.patch
flex_array-export-symbols-to-modules.patch
drivers-mmc-host-omapc-use-resource_size.patch
drivers-mmc-host-omap_hsmmcc-use-resource_size.patch
scripts-checkpatchpl-add-check-for-multiple-terminating-semicolons-and-casts-of-vmalloc.patch
checkpatchpl-fix-cast-detection.patch
checkpatch-check-for-world-writeable-sysfs-debugfs-files.patch
fs-select-fix-information-leak-to-userspace.patch
fs-select-fix-information-leak-to-userspace-fix.patch
epoll-convert-max_user_watches-to-long.patch
binfmt_elf-cleanups.patch
drivers-rtc-rtc-omapc-fix-a-memory-leak.patch
rtc-cmos-fix-suspend-resume.patch
rtc-add-real-time-clock-driver-for-nvidia-tegra.patch
drivers-gpio-cs5535-gpioc-add-some-additional-cs5535-specific-gpio-functionality.patch
drivers-staging-olpc_dcon-convert-to-new-cs5535-gpio-api.patch
cs5535-deprecate-older-cs5535_gpio-driver.patch
gpio-adp5588-gpio-irq_data-conversion.patch
gpio-langwell_gpio-irq_data-conversion.patch
gpio-max732x-irq_data-conversion.patch
gpio-pca953x-irq_data-conversion.patch
gpio-pl061-irq_data-conversion.patch
gpio-stmpe-gpio-irq_data-conversion.patch
gpio-sx150x-irq_data-conversion.patch
gpio-tc35892-gpio-irq_data-conversion.patch
gpio-timbgpio-irq_data-conversion.patch
gpio-vr41xx_giu-irq_data-conversion.patch
gpio_rdc321x-select-mfd_support-to-squelch-kconfig-warning.patch
gpio_vx855-eliminate-kconfig-dependency-warning.patch
drivers-power-gpio-chargerc-check-for-kzalloc-failure.patch
cyber2000fb-avoid-palette-corruption-at-higher-clocks.patch
drivers-telephony-ixjc-fix-warning.patch
ext2-speed-up-file-creates-by-optimizing-rec_len-functions.patch
ext3-speed-up-file-creates-by-optimizing-rec_len-functions.patch
ext3-remove-redundant-unlikely.patch
jbd-remove-dependency-on-__gfp_nofail.patch
cgroups-remove-deprecated-subsystem-from-examples.patch
memcg-add-page_cgroup-flags-for-dirty-page-tracking.patch
memcg-document-cgroup-dirty-memory-interfaces.patch
memcg-document-cgroup-dirty-memory-interfaces-fix.patch
memcg-create-extensible-page-stat-update-routines.patch
memcg-add-lock-to-synchronize-page-accounting-and-migration.patch
memcg-fix-unit-mismatch-in-memcg-oom-limit-calculation.patch
memcg-remove-unnecessary-return-from-void-returning-mem_cgroup_del_lru_list.patch
memcg-use-zalloc-rather-than-mallocmemset.patch
fs-proc-basec-kernel-latencytopc-convert-sprintf_symbol-to-%ps.patch
fs-proc-basec-kernel-latencytopc-convert-sprintf_symbol-to-%ps-checkpatch-fixes.patch
proc-use-unsigned-long-inside-proc-statm.patch
proc-use-seq_puts-seq_putc-where-possible.patch
proc-low_ino-cleanup.patch
proc-use-single_open-correctly.patch
exec_domain-establish-a-linux32-domain-on-config_compat-systems.patch
rapidio-use-common-destid-storage-for-endpoints-and-switches.patch
rapidio-integrate-rio_switch-into-rio_dev.patch
rapidio-add-definitions-of-component-tag-fields.patch
rapidio-add-device-object-linking-into-discovery.patch
rapidio-use-component-tag-for-unified-switch-identification.patch
rapidio-add-new-idt-srio-switches.patch
rapidio-add-new-sysfs-attributes.patch
sysctl-fix-ifdef-guard-comment.patch
sysctl-remove-obsolete-comments.patch
sysctl-remove-obsolete-comments-fix.patch
user_ns-improve-the-user_ns-on-the-slab-packaging.patch
user_ns-improve-the-user_ns-on-the-slab-packaging-fix.patch
fs-execc-provide-the-correct-process-pid-to-the-pipe-helper.patch
nfc-driver-for-nxp-semiconductors-pn544-nfc-chip.patch
nfc-driver-for-nxp-semiconductors-pn544-nfc-chip-update.patch
remove-dma64_addr_t.patch
pps-trivial-fixes.patch
pps-declare-variables-where-they-are-used-in-switch.patch
pps-fix-race-in-pps_fetch-handler.patch
pps-unify-timestamp-gathering.patch
pps-access-pps-device-by-direct-pointer.patch
pps-convert-printk-pr_-to-dev_.patch
pps-move-idr-stuff-to-ppsc.patch
pps-make-idr-lock-a-mutex-and-protect-idr_pre_get.patch
pps-use-bug_on-for-kernel-api-safety-checks.patch
pps-simplify-conditions-a-bit.patch
pps-timestamp-is-always-passed-to-dcd_change.patch
ntp-add-hardpps-implementation.patch
ntp-add-hardpps-implementation-update-v7.patch
pps-capture-monotonic_raw-timestamps-as-well.patch
pps-capture-monotonic_raw-timestamps-as-well-v7.patch
pps-add-kernel-consumer-support.patch
pps-add-kernel-consumer-support-v7.patch
pps-add-parallel-port-pps-client.patch
pps-add-parallel-port-pps-client-v7.patch
pps-add-parallel-port-pps-signal-generator.patch
pps-add-parallel-port-pps-signal-generator-fix.patch
pps-add-parallel-port-pps-signal-generator-v7.patch
memstick-core-fix-device_register-error-handling.patch
memstick-fix-setup-for-jmicron-38x-controllers.patch
memstick-set-pmos-values-propery-for-jmicron-38x-controllers.patch
memstick-add-support-for-jmicron-jmb-385-and-390-controllers.patch
memstick-avert-possible-race-condition-between-idr_pre_get-and-idr_get_new.patch
memstick-remove-mspro_block_mutex.patch
memstick-factor-out-transfer-initiating-functionality-in-mspro_blockc.patch
memstick-add-support-for-mspro-specific-data-transfer-method.patch
w1-ds2423-counter-driver-and-documentation.patch
w1-ds2423-counter-driver-and-documentation-fix.patch
vmware-balloon-stop-locking-pages-when-hypervisor-tells-us-enough.patch
cramfs-hide-function-prototypes-behind-__kernel__-macro.patch
romfs-have-romfs_fsh-pull-in-necessary-headers.patch
decompressors-add-missing-init-ie-__init.patch
decompressors-get-rid-of-set_error_fn-macro.patch
decompressors-include-linux-slabh-in-linux-decompress-mmh.patch
decompressors-remove-unused-function-from-lib-decompress_unlzmac.patch
decompressors-fix-header-validation-in-decompress_unlzmac.patch
decompressors-check-for-read-errors-in-decompress_unlzmac.patch
decompressors-check-for-write-errors-in-decompress_unlzmac.patch
decompressors-validate-match-distance-in-decompress_unlzmac.patch
decompressors-check-for-write-errors-in-decompress_unlzoc.patch
decompressors-check-input-size-in-decompress_unlzoc.patch
decompressors-fix-callback-to-callback-mode-in-decompress_unlzoc.patch
decompressors-add-xz-decompressor-module.patch
decompressors-add-boot-time-xz-support.patch
decompressors-add-boot-time-xz-support-update.patch
x86-support-xz-compressed-kernel.patch
bitops-merge-little-and-big-endian-definisions-in-asm-generic-bitops-leh.patch
bitops-rename-generic-little-endian-bitops-functions.patch
s390-introduce-little-endian-bitops.patch
arm-introduce-little-endian-bitops.patch
m68k-introduce-little-endian-bitops.patch
bitops-introduce-config_generic_find_le_bit.patch
m68knommu-introduce-little-endian-bitops.patch
m68knommu-introduce-little-endian-bitops-build-fix.patch
bitops-introduce-little-endian-bitops-for-most-architectures.patch
rds-stop-including-asm-generic-bitops-leh.patch
kvm-stop-including-asm-generic-bitops-leh.patch
asm-generic-use-little-endian-bitops.patch
ext3-use-little-endian-bitops.patch
ext4-use-little-endian-bitops.patch
ocfs2-use-little-endian-bitops.patch
nilfs2-use-little-endian-bitops.patch
reiserfs-use-little-endian-bitops.patch
udf-use-little-endian-bitops.patch
ufs-use-little-endian-bitops.patch
md-use-little-endian-bit-operations.patch
dm-use-little-endian-bit-operations.patch
bitops-remove-ext2-non-atomic-bitops-from-asm-bitopsh.patch
m68k-remove-inline-asm-from-minix_find_first_zero_bit.patch
bitops-remove-minix-bitops-from-asm-bitopsh.patch
bitops-use-find_first_zero_bit-instead-of-find_next_zero_bitaddr-size-0.patch
make-sure-nobodys-leaking-resources.patch
journal_add_journal_head-debug.patch
releasing-resources-with-children.patch
make-frame_pointer-default=y.patch
mutex-subsystem-synchro-test-module.patch
mutex-subsystem-synchro-test-module-add-missing-header-file.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
add-debugging-aid-for-memory-initialisation-problems.patch
workaround-for-a-pci-restoring-bug.patch
prio_tree-debugging-patch.patch
single_open-seq_release-leak-diagnostics.patch
add-a-refcount-check-in-dput.patch
memblock-add-input-size-checking-to-memblock_find_region.patch
memblock-add-input-size-checking-to-memblock_find_region-fix.patch

mmotm 2010-12-23-16-58 uploaded

[akpm]

The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to

   http://userweb.kernel.org/~akpm/mmotm/

and will soon be available at

   git://zen-kernel.org/kernel/mmotm.git

It contains the following patches against 2.6.37-rc7:

origin.patch
linux-next.patch
linux-next-git-rejects.patch
next-remove-localversion.patch
i-need-old-gcc.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
ima-fix-add-lsm-rule-bug.patch
keys-dont-call-up_write-if-__key_link_begin-returns-an-error.patch
arch-alpha-include-asm-ioh-s-extern-inline-static-inline.patch
memblock-fix-memblock_is_region_memory.patch
mm-vmap-area-cache.patch
pata_mpc52xx-driver-needs-bmdma.patch
backlight-fix-88pm860x_bl-macro-collision.patch
cciss-fix-botched-tag-masking-for-scsi-tape-commands.patch
arch-x86-oprofile-op_model_amdc-perform-initialisation-on-a-single-cpu.patch
acerhdf-add-support-for-aspire-1410-bios-v13314.patch
arm-translate-delays-into-mostly-c.patch
arm-allow-machines-to-override-__delay.patch
arm-implement-a-timer-based-__delay-loop.patch
msm-timer-migrate-to-timer-based-__delay.patch
fs-btrfs-inodec-eliminate-memory-leak.patch
btrfs-dont-dereference-extent_mapping-if-null.patch
cpufreq-fix-ondemand-governor-powersave_bias-execution-time-misuse.patch
debugfs-remove-module_exit.patch
drivers-gpu-drm-radeon-atomc-fix-warning.patch
irq-use-per_cpu-kstat_irqs.patch
modpost-fix-address-calculation-in-reloc_location.patch
drivers-leds-leds-lp5521c-fix-potential-buffer-overflow.patch
leds-leds-pca9532-cleanups.patch
leds-route-kbd-leds-through-the-generic-leds-layer.patch
mips-enable-arch_dma_addr_t_64bit-with-highmem-64bit_phys_addr-64bit.patch
isdn-capi-unregister-capictr-notifier-after-init-failure.patch
isdn-capi-make-kcapi-use-a-separate-workqueue.patch
drivers-video-backlight-l4f00242t03c-make-1-bit-signed-field-unsigned.patch
drivers-video-backlight-l4f00242t03c-full-implement-fb-power-states-for-this-lcd.patch
drivers-video-backlight-l4f00242t03c-prevent-unbalanced-calls-to-regulator-enable-disable.patch
btusb-patch-add_apple_macbookpro62.patch
atmel_serial-fix-rts-high-after-initialization-in-rs485-mode.patch
atmel_serial-fix-rts-high-after-initialization-in-rs485-mode-fix.patch
drivers-message-fusion-mptsasc-fix-warning.patch
scsi-fix-a-header-to-include-linux-typesh.patch
drivers-block-makefile-replace-the-use-of-module-objs-with-module-y.patch
drivers-block-aoe-makefile-replace-the-use-of-module-objs-with-module-y.patch
vfs-remove-a-warning-on-open_fmode.patch
vfs-add-__fmode_exec.patch
fs-make-block-fiemap-mapping-length-at-least-blocksize-long.patch
n_hdlc-fix-read-and-write-locking.patch
n_hdlc-fix-read-and-write-locking-update.patch
mm.patch
mm-page-allocator-adjust-the-per-cpu-counter-threshold-when-memory-is-low.patch
mm-vmstat-use-a-single-setter-function-and-callback-for-adjusting-percpu-thresholds.patch
mm-vmstat-use-a-single-setter-function-and-callback-for-adjusting-percpu-thresholds-fix.patch
mm-vmstat-use-a-single-setter-function-and-callback-for-adjusting-percpu-thresholds-update.patch
mm-vmstat-use-a-single-setter-function-and-callback-for-adjusting-percpu-thresholds-fix-set_pgdat_percpu_threshold-dont-use-for_each_online_cpu.patch
writeback-integrated-background-writeback-work.patch
writeback-trace-wakeup-event-for-background-writeback.patch
writeback-stop-background-kupdate-works-from-livelocking-other-works.patch
writeback-stop-background-kupdate-works-from-livelocking-other-works-update.patch
writeback-avoid-livelocking-wb_sync_all-writeback.patch
writeback-avoid-livelocking-wb_sync_all-writeback-update.patch
writeback-check-skipped-pages-on-wb_sync_all.patch
writeback-check-skipped-pages-on-wb_sync_all-update.patch
writeback-check-skipped-pages-on-wb_sync_all-update-fix.patch
writeback-io-less-balance_dirty_pages.patch
writeback-consolidate-variable-names-in-balance_dirty_pages.patch
writeback-per-task-rate-limit-on-balance_dirty_pages.patch
writeback-per-task-rate-limit-on-balance_dirty_pages-fix.patch
writeback-prevent-duplicate-balance_dirty_pages_ratelimited-calls.patch
writeback-account-per-bdi-accumulated-written-pages.patch
writeback-bdi-write-bandwidth-estimation.patch
writeback-bdi-write-bandwidth-estimation-fix.patch
writeback-show-bdi-write-bandwidth-in-debugfs.patch
writeback-quit-throttling-when-bdi-dirty-pages-dropped-low.patch
writeback-reduce-per-bdi-dirty-threshold-ramp-up-time.patch
writeback-make-reasonable-gap-between-the-dirty-background-thresholds.patch
writeback-scale-down-max-throttle-bandwidth-on-concurrent-dirtiers.patch
writeback-add-trace-event-for-balance_dirty_pages.patch
writeback-make-nr_to_write-a-per-file-limit.patch
writeback-make-nr_to_write-a-per-file-limit-fix.patch
sync_inode_metadata-fix-comment.patch
mm-page-writebackc-fix-__set_page_dirty_no_writeback-return-value.patch
vmscan-factor-out-kswapd-sleeping-logic-from-kswapd.patch
mm-find_get_pages_contig-fixlet.patch
fs-mpagec-consolidate-code.patch
fs-mpagec-consolidate-code-checkpatch-fixes.patch
mm-convert-sprintf_symbol-to-%ps.patch
mm-smaps-export-mlock-information.patch
mm-compaction-add-trace-events-for-memory-compaction-activity.patch
mm-vmscan-convert-lumpy_mode-into-a-bitmask.patch
mm-vmscan-reclaim-order-0-and-use-compaction-instead-of-lumpy-reclaim.patch
mm-vmscan-reclaim-order-0-and-use-compaction-instead-of-lumpy-reclaim-fix.patch
mm-migration-allow-migration-to-operate-asynchronously-and-avoid-synchronous-compaction-in-the-faster-path.patch
mm-migration-allow-migration-to-operate-asynchronously-and-avoid-synchronous-compaction-in-the-faster-path-fix.patch
mm-migration-cleanup-migrate_pages-api-by-matching-types-for-offlining-and-sync.patch
mm-compaction-perform-a-faster-migration-scan-when-migrating-asynchronously.patch
mm-vmscan-rename-lumpy_mode-to-reclaim_mode.patch
mm-vmscan-rename-lumpy_mode-to-reclaim_mode-fix.patch
mm-deactivate-invalidated-pages.patch
mm-deactivate-invalidated-pages-fix.patch
mm-remove-unused-get_vm_area_node.patch
mm-remove-gfp-mask-from-pcpu_get_vm_areas.patch
mm-unify-module_alloc-code-for-vmalloc.patch
oom-allow-a-non-cap_sys_resource-proces-to-oom_score_adj-down.patch
mm-clear-pageerror-bit-in-msync-fsync.patch
do_wp_page-remove-the-reuse-flag.patch
do_wp_page-clarify-dirty_page-handling.patch
mlock-avoid-dirtying-pages-and-triggering-writeback.patch
mlock-only-hold-mmap_sem-in-shared-mode-when-faulting-in-pages.patch
mlock-only-hold-mmap_sem-in-shared-mode-when-faulting-in-pages-fix.patch
mm-add-foll_mlock-follow_page-flag.patch
mm-move-vm_locked-check-to-__mlock_vma_pages_range.patch
mlock-do-not-hold-mmap_sem-for-extended-periods-of-time.patch
mlock-do-not-hold-mmap_sem-for-extended-periods-of-time-fix.patch
mlock-do-not-hold-mmap_sem-for-extended-periods-of-time-fix2.patch
mempolicy-remove-tasklist_lock-from-migrate_pages.patch
vmalloc-remove-redundant-unlikely.patch
mm-remove-likely-from-mapping_unevictable.patch
mm-remove-unlikely-from-page_mapping.patch
mm-remove-likely-from-grab_cache_page_write_begin.patch
mm-kswapd-stop-high-order-balancing-when-any-suitable-zone-is-balanced.patch
mm-kswapd-keep-kswapd-awake-for-high-order-allocations-until-a-percentage-of-the-node-is-balanced.patch
mm-kswapd-use-the-order-that-kswapd-was-reclaiming-at-for-sleeping_prematurely.patch
mm-kswapd-reset-kswapd_max_order-and-classzone_idx-after-reading.patch
mm-kswapd-treat-zone-all_unreclaimable-in-sleeping_prematurely-similar-to-balance_pgdat.patch
mm-kswapd-use-the-classzone-idx-that-kswapd-was-using-for-sleeping_prematurely.patch
mm-set-correct-numa_zonelist_order-string-when-configured-on-the-kernel-command-line.patch
thp-ksm-free-swap-when-swapcache-page-is-replaced.patch
thp-fix-bad_page-to-show-the-real-reason-the-page-is-bad.patch
thp-transparent-hugepage-support-documentation.patch
thp-mm-define-madv_hugepage.patch
thp-compound_lock.patch
thp-alter-compound-get_page-put_page.patch
thp-put_page-recheck-pagehead-after-releasing-the-compound_lock.patch
thp-update-futex-compound-knowledge.patch
thp-clear-compound-mapping.patch
thp-add-native_set_pmd_at.patch
thp-add-pmd-paravirt-ops.patch
thp-no-paravirt-version-of-pmd-ops.patch
thp-export-maybe_mkwrite.patch
thp-comment-reminder-in-destroy_compound_page.patch
thp-config_transparent_hugepage.patch
thp-config_transparent_hugepage-fix.patch
thp-special-pmd_trans_-functions.patch
thp-add-pmd-mangling-generic-functions.patch
thp-add-pmd-mangling-generic-functions-fix-pgtableh-build-for-um.patch
thp-add-pmd-mangling-functions-to-x86.patch
thp-bail-out-gup_fast-on-splitting-pmd.patch
thp-pte-alloc-trans-splitting.patch
thp-pte-alloc-trans-splitting-fix.patch
thp-pte-alloc-trans-splitting-fix-checkpatch-fixes.patch
thp-add-pmd-mmu_notifier-helpers.patch
thp-clear-page-compound.patch
thp-add-pmd_huge_pte-to-mm_struct.patch
thp-split_huge_page_mm-vma.patch
thp-split_huge_page-paging.patch
thp-clear_copy_huge_page.patch
thp-kvm-mmu-transparent-hugepage-support.patch
thp-_gfp_no_kswapd.patch
thp-dont-alloc-harder-for-gfp-nomemalloc-even-if-nowait.patch
thp-transparent-hugepage-core.patch
thp-split_huge_page-anon_vma-ordering-dependency.patch
thp-verify-pmd_trans_huge-isnt-leaking.patch
thp-madvisemadv_hugepage.patch
thp-add-pagetranscompound.patch
thp-pmd_trans_huge-migrate-bugcheck.patch
thp-memcg-compound.patch
thp-transhuge-memcg-commit-tail-pages-at-charge.patch
thp-memcg-huge-memory.patch
thp-transparent-hugepage-vmstat.patch
thp-khugepaged.patch
thp-khugepaged-vma-merge.patch
thp-skip-transhuge-pages-in-ksm-for-now.patch
thp-remove-pg_buddy.patch
thp-add-x86-32bit-support.patch
thp-mincore-transparent-hugepage-support.patch
thp-add-pmd_modify.patch
thp-mprotect-pass-vma-down-to-page-table-walkers.patch
thp-mprotect-transparent-huge-page-support.patch
thp-set-recommended-min-free-kbytes.patch
thp-enable-direct-defrag.patch
thp-add-numa-awareness-to-hugepage-allocations.patch
thp-allocate-memory-in-khugepaged-outside-of-mmap_sem-write-mode.patch
thp-allocate-memory-in-khugepaged-outside-of-mmap_sem-write-mode-fix.patch
thp-transparent-hugepage-config-choice.patch
thp-select-config_compaction-if-transparent_hugepage-enabled.patch
thp-transhuge-isolate_migratepages.patch
thp-avoid-breaking-huge-pmd-invariants-in-case-of-vma_adjust-failures.patch
thp-dont-allow-transparent-hugepage-support-without-pse.patch
thp-mmu_notifier_test_young.patch
thp-freeze-khugepaged-and-ksmd.patch
thp-use-compaction-in-kswapd-for-gfp_atomic-order-0.patch
thp-use-compaction-for-all-allocation-orders.patch
thp-disable-transparent-hugepages-by-default-on-small-systems.patch
thp-fix-anon-memory-statistics-with-transparent-hugepages.patch
thp-scale-nr_rotated-to-balance-memory-pressure.patch
thp-transparent-hugepage-sysfs-meminfo.patch
thp-add-debug-checks-for-mapcount-related-invariants.patch
thp-fix-memory-failure-hugetlbfs-vs-thp-collision.patch
thp-compound_trans_order.patch
thp-compound_trans_order-fix.patch
thp-mm-define-madv_nohugepage.patch
thp-madvisemadv_nohugepage.patch
thp-khugepaged-make-khugepaged-aware-of-madvise.patch
thp-khugepaged-make-khugepaged-aware-of-madvise-fix.patch
mm-migration-use-rcu_dereference_protected-when-dereferencing-the-radix-tree-slot-during-file-page-migration.patch
mm-migration-use-rcu_dereference_protected-when-dereferencing-the-radix-tree-slot-during-file-page-migration-fix.patch
mm-hugetlbc-fix-error-path-memory-leak-in-nr_hugepages_store_common.patch
mm-hugetlbc-fix-error-path-memory-leak-in-nr_hugepages_store_common-fix.patch
frv-duplicate-output_buffer-of-e03.patch
frv-duplicate-output_buffer-of-e03-checkpatch-fixes.patch
hpet-factor-timer-allocate-from-open.patch
um-mark-config_highmem-as-broken.patch
arch-um-drivers-linec-safely-iterate-over-list-of-winch-handlers.patch
uml-mmapper_kern-needs-module_license.patch
kmsg_dump-constrain-mtdoops-and-ramoops-to-perform-their-actions-only-for-kmsg_dump_panic.patch
kmsg_dump-add-kmsg_dump-calls-to-the-reboot-halt-poweroff-and-emergency_restart-paths.patch
set_rtc_mmss-show-warning-message-only-once.patch
include-linux-kernelh-abs-fix-handling-of-32-bit-unsigneds-on-64-bit.patch
include-linux-kernelh-abs-fix-handling-of-32-bit-unsigneds-on-64-bit-fix.patch
add-the-common-dma_addr_t-typedef-to-include-linux-typesh.patch
toshibah-hide-a-function-prototypes-behind-__kernel__-macro.patch
include-linux-unaligned-packed_structh-use-__packed.patch
kernel-clean-up-use_generic_smp_helpers.patch
mm-numa-aware-alloc_task_struct_node.patch
mm-numa-aware-alloc_thread_info_node.patch
kthread-numa-aware-kthread_create_on_cpu.patch
kthread-use-kthread_create_on_cpu.patch
kptr_restrict-for-hiding-kernel-pointers-from-unprivileged-users.patch
kptr_restrict-for-hiding-kernel-pointers-from-unprivileged-users-fix.patch
kptr_restrict-for-hiding-kernel-pointers-v4.patch
kptr_restrict-for-hiding-kernel-pointers-v6.patch
kptr_restrict-for-hiding-kernel-pointers-v7.patch
kptr_restrict-for-hiding-kernel-pointers-v7-fix.patch
net-convert-%p-usage-to-%pk.patch
dca-remove-unneeded-null-check.patch
include-asm-generic-vmlinuxldsh-make-readmostly-section-correctly-align.patch
percpu-add-new-macros-to-make-percpu-readmostly-section-correctly-align.patch
printk-use-rcu-to-prevent-potential-lock-contention-in-kmsg_dump.patch
include-linux-printkh-move-console-functions-and-variables-together.patch
include-linux-printkh-use-space-after-define.patch
include-linux-printkh-use-and-neaten-no_printk.patch
include-linux-printkh-add-pr_level_once-macros.patch
include-linux-printkh-lib-hexdumpc-neatening-and-add-config_printk-guard.patch
include-linux-printkh-organize-printk_ratelimited-macros.patch
include-linux-printkh-use-tab-not-spaces-for-indent.patch
vfs-remove-unlikely-from-fput_light.patch
vfs-remove-unlikely-from-fget_light.patch
scripts-get_maintainerpl-make-rolestats-the-default.patch
scripts-get_maintainerpl-use-git-fallback-more-often.patch
maintainers-openwrt-devel-is-subscribers-only.patch
flex_array-export-symbols-to-modules.patch
drivers-mmc-host-omapc-use-resource_size.patch
drivers-mmc-host-omap_hsmmcc-use-resource_size.patch
scripts-checkpatchpl-add-check-for-multiple-terminating-semicolons-and-casts-of-vmalloc.patch
checkpatchpl-fix-cast-detection.patch
checkpatch-check-for-world-writeable-sysfs-debugfs-files.patch
fs-select-fix-information-leak-to-userspace.patch
fs-select-fix-information-leak-to-userspace-fix.patch
epoll-convert-max_user_watches-to-long.patch
binfmt_elf-cleanups.patch
drivers-rtc-rtc-omapc-fix-a-memory-leak.patch
rtc-cmos-fix-suspend-resume.patch
rtc-add-real-time-clock-driver-for-nvidia-tegra.patch
drivers-gpio-cs5535-gpioc-add-some-additional-cs5535-specific-gpio-functionality.patch
drivers-staging-olpc_dcon-convert-to-new-cs5535-gpio-api.patch
cs5535-deprecate-older-cs5535_gpio-driver.patch
gpio-adp5588-gpio-irq_data-conversion.patch
gpio-langwell_gpio-irq_data-conversion.patch
gpio-max732x-irq_data-conversion.patch
gpio-pca953x-irq_data-conversion.patch
gpio-pl061-irq_data-conversion.patch
gpio-stmpe-gpio-irq_data-conversion.patch
gpio-sx150x-irq_data-conversion.patch
gpio-tc35892-gpio-irq_data-conversion.patch
gpio-timbgpio-irq_data-conversion.patch
gpio-vr41xx_giu-irq_data-conversion.patch
gpio_rdc321x-select-mfd_support-to-squelch-kconfig-warning.patch
gpio_vx855-eliminate-kconfig-dependency-warning.patch
drivers-power-gpio-chargerc-check-for-kzalloc-failure.patch
cyber2000fb-avoid-palette-corruption-at-higher-clocks.patch
drivers-telephony-ixjc-fix-warning.patch
ext2-speed-up-file-creates-by-optimizing-rec_len-functions.patch
ext3-speed-up-file-creates-by-optimizing-rec_len-functions.patch
ext3-remove-redundant-unlikely.patch
jbd-remove-dependency-on-__gfp_nofail.patch
cgroups-remove-deprecated-subsystem-from-examples.patch
memcg-add-page_cgroup-flags-for-dirty-page-tracking.patch
memcg-document-cgroup-dirty-memory-interfaces.patch
memcg-document-cgroup-dirty-memory-interfaces-fix.patch
memcg-create-extensible-page-stat-update-routines.patch
memcg-add-lock-to-synchronize-page-accounting-and-migration.patch
memcg-fix-unit-mismatch-in-memcg-oom-limit-calculation.patch
memcg-remove-unnecessary-return-from-void-returning-mem_cgroup_del_lru_list.patch
memcg-use-zalloc-rather-than-mallocmemset.patch
fs-proc-basec-kernel-latencytopc-convert-sprintf_symbol-to-%ps.patch
fs-proc-basec-kernel-latencytopc-convert-sprintf_symbol-to-%ps-checkpatch-fixes.patch
proc-use-unsigned-long-inside-proc-statm.patch
proc-use-seq_puts-seq_putc-where-possible.patch
proc-low_ino-cleanup.patch
proc-use-single_open-correctly.patch
exec_domain-establish-a-linux32-domain-on-config_compat-systems.patch
rapidio-use-common-destid-storage-for-endpoints-and-switches.patch
rapidio-integrate-rio_switch-into-rio_dev.patch
rapidio-add-definitions-of-component-tag-fields.patch
rapidio-add-device-object-linking-into-discovery.patch
rapidio-use-component-tag-for-unified-switch-identification.patch
rapidio-add-new-idt-srio-switches.patch
rapidio-add-new-sysfs-attributes.patch
sysctl-fix-ifdef-guard-comment.patch
sysctl-remove-obsolete-comments.patch
sysctl-remove-obsolete-comments-fix.patch
user_ns-improve-the-user_ns-on-the-slab-packaging.patch
user_ns-improve-the-user_ns-on-the-slab-packaging-fix.patch
fs-execc-provide-the-correct-process-pid-to-the-pipe-helper.patch
nfc-driver-for-nxp-semiconductors-pn544-nfc-chip.patch
nfc-driver-for-nxp-semiconductors-pn544-nfc-chip-update.patch
remove-dma64_addr_t.patch
pps-trivial-fixes.patch
pps-declare-variables-where-they-are-used-in-switch.patch
pps-fix-race-in-pps_fetch-handler.patch
pps-unify-timestamp-gathering.patch
pps-access-pps-device-by-direct-pointer.patch
pps-convert-printk-pr_-to-dev_.patch
pps-move-idr-stuff-to-ppsc.patch
pps-make-idr-lock-a-mutex-and-protect-idr_pre_get.patch
pps-use-bug_on-for-kernel-api-safety-checks.patch
pps-simplify-conditions-a-bit.patch
pps-timestamp-is-always-passed-to-dcd_change.patch
ntp-add-hardpps-implementation.patch
ntp-add-hardpps-implementation-update-v7.patch
pps-capture-monotonic_raw-timestamps-as-well.patch
pps-capture-monotonic_raw-timestamps-as-well-v7.patch
pps-add-kernel-consumer-support.patch
pps-add-kernel-consumer-support-v7.patch
pps-add-parallel-port-pps-client.patch
pps-add-parallel-port-pps-client-v7.patch
pps-add-parallel-port-pps-signal-generator.patch
pps-add-parallel-port-pps-signal-generator-fix.patch
pps-add-parallel-port-pps-signal-generator-v7.patch
memstick-core-fix-device_register-error-handling.patch
memstick-fix-setup-for-jmicron-38x-controllers.patch
memstick-set-pmos-values-propery-for-jmicron-38x-controllers.patch
memstick-add-support-for-jmicron-jmb-385-and-390-controllers.patch
memstick-avert-possible-race-condition-between-idr_pre_get-and-idr_get_new.patch
memstick-remove-mspro_block_mutex.patch
memstick-factor-out-transfer-initiating-functionality-in-mspro_blockc.patch
memstick-add-support-for-mspro-specific-data-transfer-method.patch
w1-ds2423-counter-driver-and-documentation.patch
w1-ds2423-counter-driver-and-documentation-fix.patch
vmware-balloon-stop-locking-pages-when-hypervisor-tells-us-enough.patch
cramfs-hide-function-prototypes-behind-__kernel__-macro.patch
romfs-have-romfs_fsh-pull-in-necessary-headers.patch
decompressors-add-missing-init-ie-__init.patch
decompressors-get-rid-of-set_error_fn-macro.patch
decompressors-include-linux-slabh-in-linux-decompress-mmh.patch
decompressors-remove-unused-function-from-lib-decompress_unlzmac.patch
decompressors-fix-header-validation-in-decompress_unlzmac.patch
decompressors-check-for-read-errors-in-decompress_unlzmac.patch
decompressors-check-for-write-errors-in-decompress_unlzmac.patch
decompressors-validate-match-distance-in-decompress_unlzmac.patch
decompressors-check-for-write-errors-in-decompress_unlzoc.patch
decompressors-check-input-size-in-decompress_unlzoc.patch
decompressors-fix-callback-to-callback-mode-in-decompress_unlzoc.patch
decompressors-add-xz-decompressor-module.patch
decompressors-add-boot-time-xz-support.patch
decompressors-add-boot-time-xz-support-update.patch
x86-support-xz-compressed-kernel.patch
bitops-merge-little-and-big-endian-definisions-in-asm-generic-bitops-leh.patch
bitops-rename-generic-little-endian-bitops-functions.patch
s390-introduce-little-endian-bitops.patch
arm-introduce-little-endian-bitops.patch
m68k-introduce-little-endian-bitops.patch
bitops-introduce-config_generic_find_le_bit.patch
m68knommu-introduce-little-endian-bitops.patch
m68knommu-introduce-little-endian-bitops-build-fix.patch
bitops-introduce-little-endian-bitops-for-most-architectures.patch
rds-stop-including-asm-generic-bitops-leh.patch
kvm-stop-including-asm-generic-bitops-leh.patch
asm-generic-use-little-endian-bitops.patch
ext3-use-little-endian-bitops.patch
ext4-use-little-endian-bitops.patch
ocfs2-use-little-endian-bitops.patch
nilfs2-use-little-endian-bitops.patch
reiserfs-use-little-endian-bitops.patch
udf-use-little-endian-bitops.patch
ufs-use-little-endian-bitops.patch
md-use-little-endian-bit-operations.patch
dm-use-little-endian-bit-operations.patch
bitops-remove-ext2-non-atomic-bitops-from-asm-bitopsh.patch
m68k-remove-inline-asm-from-minix_find_first_zero_bit.patch
bitops-remove-minix-bitops-from-asm-bitopsh.patch
bitops-use-find_first_zero_bit-instead-of-find_next_zero_bitaddr-size-0.patch
make-sure-nobodys-leaking-resources.patch
journal_add_journal_head-debug.patch
releasing-resources-with-children.patch
make-frame_pointer-default=y.patch
mutex-subsystem-synchro-test-module.patch
mutex-subsystem-synchro-test-module-add-missing-header-file.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
add-debugging-aid-for-memory-initialisation-problems.patch
workaround-for-a-pci-restoring-bug.patch
prio_tree-debugging-patch.patch
single_open-seq_release-leak-diagnostics.patch
add-a-refcount-check-in-dput.patch
memblock-add-input-size-checking-to-memblock_find_region.patch
memblock-add-input-size-checking-to-memblock_find_region-fix.patch

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Re: mmotm 2010-12-23-16-58 uploaded

[Sedat Dilek]

On Fri, Dec 24, 2010 at 1:58 AM,  <akpm@linux-foundation.org> wrote:
> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
>
>   http://userweb.kernel.org/~akpm/mmotm/
>
> and will soon be available at
>
>   git://zen-kernel.org/kernel/mmotm.git
>

The readme in [1] lists a wrong browseable GIT-repo URL:

"Alternatively, these patches are available in a git repository at

git:	git://zen-kernel.org/kernel/mmotm.git
gitweb:	http://git.zen-kernel.org/?p=kernel/mmotm.git;a=summary"

Correct would be [2]:

gitweb: http://git.zen-kernel.org/mmotm/

> It contains the following patches against 2.6.37-rc7:
>
[...]
> linux-next-git-rejects.patch

Hm, the content of this patch looks a bit strange.
Is that a post-cleanup patch to linux-next merge?

- Sedat -

[1] http://userweb.kernel.org/~akpm/mmotm/mmotm-readme.txt
[2] http://git.zen-kernel.org/mmotm/

Re: mmotm 2010-12-23-16-58 uploaded

[Sedat Dilek]

On Fri, Dec 24, 2010 at 1:58 AM,  <akpm@linux-foundation.org> wrote:
> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
>
>   http://userweb.kernel.org/~akpm/mmotm/
>
> and will soon be available at
>
>   git://zen-kernel.org/kernel/mmotm.git
>

The readme in [1] lists a wrong browseable GIT-repo URL:

"Alternatively, these patches are available in a git repository at

git:	git://zen-kernel.org/kernel/mmotm.git
gitweb:	http://git.zen-kernel.org/?p=kernel/mmotm.git;a=summary"

Correct would be [2]:

gitweb: http://git.zen-kernel.org/mmotm/

> It contains the following patches against 2.6.37-rc7:
>
[...]
> linux-next-git-rejects.patch

Hm, the content of this patch looks a bit strange.
Is that a post-cleanup patch to linux-next merge?

- Sedat -

[1] http://userweb.kernel.org/~akpm/mmotm/mmotm-readme.txt
[2] http://git.zen-kernel.org/mmotm/

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Re: mmotm 2010-12-23-16-58 uploaded

[Andrew Morton]

On Fri, 24 Dec 2010 13:15:26 +0100 Sedat Dilek <sedat.dilek@googlemail.com> wrote:

> On Fri, Dec 24, 2010 at 1:58 AM,  <akpm@linux-foundation.org> wrote:
> > The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> >
> > __ http://userweb.kernel.org/~akpm/mmotm/
> >
> > and will soon be available at
> >
> > __ git://zen-kernel.org/kernel/mmotm.git
> >
> 
> The readme in [1] lists a wrong browseable GIT-repo URL:
> 
> "Alternatively, these patches are available in a git repository at
> 
> git:	git://zen-kernel.org/kernel/mmotm.git
> gitweb:	http://git.zen-kernel.org/?p=kernel/mmotm.git;a=summary"
> 
> Correct would be [2]:
> 
> gitweb: http://git.zen-kernel.org/mmotm/

hm, thanks.  The darn thing keeps moving around.

> > It contains the following patches against 2.6.37-rc7:
> >
> [...]
> > linux-next-git-rejects.patch
> 
> Hm, the content of this patch looks a bit strange.
> Is that a post-cleanup patch to linux-next merge?

Yes.  It's caused by skew between Linus's tree and linux-next.

Re: mmotm 2010-12-23-16-58 uploaded

[Andrew Morton]

On Fri, 24 Dec 2010 13:15:26 +0100 Sedat Dilek <sedat.dilek@googlemail.com> wrote:

> On Fri, Dec 24, 2010 at 1:58 AM,  <akpm@linux-foundation.org> wrote:
> > The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> >
> > __ http://userweb.kernel.org/~akpm/mmotm/
> >
> > and will soon be available at
> >
> > __ git://zen-kernel.org/kernel/mmotm.git
> >
> 
> The readme in [1] lists a wrong browseable GIT-repo URL:
> 
> "Alternatively, these patches are available in a git repository at
> 
> git:	git://zen-kernel.org/kernel/mmotm.git
> gitweb:	http://git.zen-kernel.org/?p=kernel/mmotm.git;a=summary"
> 
> Correct would be [2]:
> 
> gitweb: http://git.zen-kernel.org/mmotm/

hm, thanks.  The darn thing keeps moving around.

> > It contains the following patches against 2.6.37-rc7:
> >
> [...]
> > linux-next-git-rejects.patch
> 
> Hm, the content of this patch looks a bit strange.
> Is that a post-cleanup patch to linux-next merge?

Yes.  It's caused by skew between Linus's tree and linux-next.

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[PATCH -mmotm] kptr_restrict: fix build when PRINTK not enabled

[Randy Dunlap]

From: Randy Dunlap <randy.dunlap@oracle.com>

#include <linux/printk.h> since that is where kptr_restrict is externed.

Put kptr_restrict inside #ifdef CONFIG_PRINTK block to fix build error
when CONFIG_PRINTK is not enabled:

kernel/sysctl.c:712: error: 'kptr_restrict' undeclared here (not in a function)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Dan Rosenberg <drosenberg@vsecurity.com>
---
 kernel/sysctl.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- mmotm-2010-1223-1658.orig/kernel/sysctl.c
+++ mmotm-2010-1223-1658/kernel/sysctl.c
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/sysctl.h>
 #include <linux/signal.h>
+#include <linux/printk.h>
 #include <linux/proc_fs.h>
 #include <linux/security.h>
 #include <linux/ctype.h>
@@ -706,7 +707,6 @@ static struct ctl_table kern_table[] = {
 		.extra1		= &zero,
 		.extra2		= &one,
 	},
-#endif
 	{
 		.procname	= "kptr_restrict",
 		.data		= &kptr_restrict,
@@ -716,6 +716,7 @@ static struct ctl_table kern_table[] = {
 		.extra1		= &zero,
 		.extra2		= &two,
 	},
+#endif
 	{
 		.procname	= "ngroups_max",
 		.data		= &ngroups_max,



---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
desserts:  http://www.xenotime.net/linux/recipes/

[PATCH -mmotm] kptr_restrict: fix build when PRINTK not enabled

[Randy Dunlap]

From: Randy Dunlap <randy.dunlap@oracle.com>

#include <linux/printk.h> since that is where kptr_restrict is externed.

Put kptr_restrict inside #ifdef CONFIG_PRINTK block to fix build error
when CONFIG_PRINTK is not enabled:

kernel/sysctl.c:712: error: 'kptr_restrict' undeclared here (not in a function)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Dan Rosenberg <drosenberg@vsecurity.com>
---
 kernel/sysctl.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- mmotm-2010-1223-1658.orig/kernel/sysctl.c
+++ mmotm-2010-1223-1658/kernel/sysctl.c
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/sysctl.h>
 #include <linux/signal.h>
+#include <linux/printk.h>
 #include <linux/proc_fs.h>
 #include <linux/security.h>
 #include <linux/ctype.h>
@@ -706,7 +707,6 @@ static struct ctl_table kern_table[] = {
 		.extra1		= &zero,
 		.extra2		= &one,
 	},
-#endif
 	{
 		.procname	= "kptr_restrict",
 		.data		= &kptr_restrict,
@@ -716,6 +716,7 @@ static struct ctl_table kern_table[] = {
 		.extra1		= &zero,
 		.extra2		= &two,
 	},
+#endif
 	{
 		.procname	= "ngroups_max",
 		.data		= &ngroups_max,



---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
desserts:  http://www.xenotime.net/linux/recipes/

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Re: mmotm 2010-12-23-16-58 uploaded

[Randy Dunlap]

On Thu, 23 Dec 2010 16:58:58 -0800 akpm@linux-foundation.org wrote:

> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> 
>    http://userweb.kernel.org/~akpm/mmotm/
> 
> and will soon be available at
> 
>    git://zen-kernel.org/kernel/mmotm.git
> 
> It contains the following patches against 2.6.37-rc7:

> memstick-factor-out-transfer-initiating-functionality-in-mspro_blockc.patch

drivers/memstick/core/mspro_block.c:1090: warning: format '%x' expects type 'unsigned int', but argument 7 has type 'size_t'

change "size %x" to "size %zx"

---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
desserts:  http://www.xenotime.net/linux/recipes/

Re: mmotm 2010-12-23-16-58 uploaded

[Randy Dunlap]

On Thu, 23 Dec 2010 16:58:58 -0800 akpm@linux-foundation.org wrote:

> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> 
>    http://userweb.kernel.org/~akpm/mmotm/
> 
> and will soon be available at
> 
>    git://zen-kernel.org/kernel/mmotm.git
> 
> It contains the following patches against 2.6.37-rc7:

> memstick-factor-out-transfer-initiating-functionality-in-mspro_blockc.patch

drivers/memstick/core/mspro_block.c:1090: warning: format '%x' expects type 'unsigned int', but argument 7 has type 'size_t'

change "size %x" to "size %zx"

---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
desserts:  http://www.xenotime.net/linux/recipes/

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suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to

Hi, this kernel regresses with respect to suspend to ram in comparison
with mmotm 2010-12-16-14-56.

This is OK:
echo devices > /sys/power/pm_test
pm-suspend
This hangs at suspend phase:
echo platform > /sys/power/pm_test
pm-suspend

Note that this kernel is based on next-20101221. Should I try newer (and
clean) -next?

regards,
-- 
js

suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to

Hi, this kernel regresses with respect to suspend to ram in comparison
with mmotm 2010-12-16-14-56.

This is OK:
echo devices > /sys/power/pm_test
pm-suspend
This hangs at suspend phase:
echo platform > /sys/power/pm_test
pm-suspend

Note that this kernel is based on next-20101221. Should I try newer (and
clean) -next?

regards,
-- 
js

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 01/04/2011 02:40 PM, Jiri Slaby wrote:
> On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
>> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> 
> Hi, this kernel regresses with respect to suspend to ram in comparison
> with mmotm 2010-12-16-14-56.
> 
> This is OK:
> echo devices > /sys/power/pm_test
> pm-suspend
> This hangs at suspend phase:
> echo platform > /sys/power/pm_test
> pm-suspend
> 
> Note that this kernel is based on next-20101221. Should I try newer (and
> clean) -next?

Ok, bisected down to:
16dc39c98a6ca56a27f22f7ac6731d8223237a2e is first bad commit
commit 16dc39c98a6ca56a27f22f7ac6731d8223237a2e
Author: Len Brown <len.brown@intel.com>
Date:   Thu Dec 16 23:12:23 2010 -0500

    ACPI: use ioremap_cache()

    Although the temporary boot-time ACPI table mappings
    were set up with CPU caching enabled, the permanent table
    mappings and AML run-time region memory accesses were
    set up with ioremap(), which on x86 is a synonym for
    ioremap_nocache().

    Changing this to ioremap_cache() improves performance as
    seen when accessing the tables via acpidump,
    or /sys/firmware/acpi/tables.  It should also improve
    AML run-time performance.

    No change on ia64.

    Reported-by: Jack Steiner <steiner@sgi.com>
    Signed-off-by: Len Brown <len.brown@intel.com>

:040000 040000 be35c5e8f214f10f94688c1a27f33ecfb8505220
52581222d0edf190f160f3e5aa5d2c1af8e76988 M      arch
:040000 040000 ccdca0d41938b8312e946cde3c01c59b32d1c17c
96ccf2357f2ac4a31d19cc41f5728d9f87b6cac0 M      drivers

Revert of that patch fixes the problem.

regards,
-- 
js

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Rafael J. Wysocki]

On Tuesday, January 04, 2011, Jiri Slaby wrote:
> On 01/04/2011 02:40 PM, Jiri Slaby wrote:
> > On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
> >> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> > 
> > Hi, this kernel regresses with respect to suspend to ram in comparison
> > with mmotm 2010-12-16-14-56.
> > 
> > This is OK:
> > echo devices > /sys/power/pm_test
> > pm-suspend
> > This hangs at suspend phase:
> > echo platform > /sys/power/pm_test
> > pm-suspend

Hmm.  So it looks like _PTS hangs?

> > Note that this kernel is based on next-20101221. Should I try newer (and
> > clean) -next?
> 
> Ok, bisected down to:
> 16dc39c98a6ca56a27f22f7ac6731d8223237a2e is first bad commit
> commit 16dc39c98a6ca56a27f22f7ac6731d8223237a2e
> Author: Len Brown <len.brown@intel.com>
> Date:   Thu Dec 16 23:12:23 2010 -0500
> 
>     ACPI: use ioremap_cache()
> 
>     Although the temporary boot-time ACPI table mappings
>     were set up with CPU caching enabled, the permanent table
>     mappings and AML run-time region memory accesses were
>     set up with ioremap(), which on x86 is a synonym for
>     ioremap_nocache().
> 
>     Changing this to ioremap_cache() improves performance as
>     seen when accessing the tables via acpidump,
>     or /sys/firmware/acpi/tables.  It should also improve
>     AML run-time performance.
> 
>     No change on ia64.
> 
>     Reported-by: Jack Steiner <steiner@sgi.com>
>     Signed-off-by: Len Brown <len.brown@intel.com>
> 
> :040000 040000 be35c5e8f214f10f94688c1a27f33ecfb8505220
> 52581222d0edf190f160f3e5aa5d2c1af8e76988 M      arch
> :040000 040000 ccdca0d41938b8312e946cde3c01c59b32d1c17c
> 96ccf2357f2ac4a31d19cc41f5728d9f87b6cac0 M      drivers
> 
> Revert of that patch fixes the problem.

Can you send a dmesg output and acpidump output from the failing system, please?

Rafael

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 01/04/2011 11:57 PM, Rafael J. Wysocki wrote:
> On Tuesday, January 04, 2011, Jiri Slaby wrote:
>> On 01/04/2011 02:40 PM, Jiri Slaby wrote:
>>> On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
>>>> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
>>>
>>> Hi, this kernel regresses with respect to suspend to ram in comparison
>>> with mmotm 2010-12-16-14-56.
>>>
>>> This is OK:
>>> echo devices > /sys/power/pm_test
>>> pm-suspend
>>> This hangs at suspend phase:
>>> echo platform > /sys/power/pm_test
>>> pm-suspend
> 
> Hmm.  So it looks like _PTS hangs?

No _PST here :).

>>> Note that this kernel is based on next-20101221. Should I try newer (and
>>> clean) -next?
>>
>> Ok, bisected down to:
>> 16dc39c98a6ca56a27f22f7ac6731d8223237a2e is first bad commit
>> commit 16dc39c98a6ca56a27f22f7ac6731d8223237a2e
...
>> Revert of that patch fixes the problem.
> 
> Can you send a dmesg output and acpidump output from the failing system, please?

Here they are:
http://www.fi.muni.cz/~xslaby/sklad/panics/dmesg-no-susp.txt
http://www.fi.muni.cz/~xslaby/sklad/adump.txt

They are captured from the mmotm minus 16dc39c98a6ca56 if that's OK?
Ignore the BUG there, it's caused by qemu and fixed in later -next.

regards,
-- 
js

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 01/04/2011 11:57 PM, Rafael J. Wysocki wrote:
> On Tuesday, January 04, 2011, Jiri Slaby wrote:
>> On 01/04/2011 02:40 PM, Jiri Slaby wrote:
>>> On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
>>>> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
>>>
>>> Hi, this kernel regresses with respect to suspend to ram in comparison
>>> with mmotm 2010-12-16-14-56.
>>>
>>> This is OK:
>>> echo devices > /sys/power/pm_test
>>> pm-suspend
>>> This hangs at suspend phase:
>>> echo platform > /sys/power/pm_test
>>> pm-suspend
> 
> Hmm.  So it looks like _PTS hangs?

No _PST here :).

>>> Note that this kernel is based on next-20101221. Should I try newer (and
>>> clean) -next?
>>
>> Ok, bisected down to:
>> 16dc39c98a6ca56a27f22f7ac6731d8223237a2e is first bad commit
>> commit 16dc39c98a6ca56a27f22f7ac6731d8223237a2e
...
>> Revert of that patch fixes the problem.
> 
> Can you send a dmesg output and acpidump output from the failing system, please?

Here they are:
http://www.fi.muni.cz/~xslaby/sklad/panics/dmesg-no-susp.txt
http://www.fi.muni.cz/~xslaby/sklad/adump.txt

They are captured from the mmotm minus 16dc39c98a6ca56 if that's OK?
Ignore the BUG there, it's caused by qemu and fixed in later -next.

regards,
-- 
js

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Rafael J. Wysocki]

On Wednesday, January 05, 2011, Jiri Slaby wrote:
> On 01/04/2011 11:57 PM, Rafael J. Wysocki wrote:
> > On Tuesday, January 04, 2011, Jiri Slaby wrote:
> >> On 01/04/2011 02:40 PM, Jiri Slaby wrote:
> >>> On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
> >>>> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> >>>
> >>> Hi, this kernel regresses with respect to suspend to ram in comparison
> >>> with mmotm 2010-12-16-14-56.
> >>>
> >>> This is OK:
> >>> echo devices > /sys/power/pm_test
> >>> pm-suspend
> >>> This hangs at suspend phase:
> >>> echo platform > /sys/power/pm_test
> >>> pm-suspend
> > 
> > Hmm.  So it looks like _PTS hangs?
> 
> No _PST here :).

I really meant _PTS and yes, there is one and it does quite a lot of
interesting stuff.

Are you able to collect serial console (or equivalent) logs from that machine?

Rafael

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 01/05/2011 11:39 PM, Rafael J. Wysocki wrote:
> On Wednesday, January 05, 2011, Jiri Slaby wrote:
>> On 01/04/2011 11:57 PM, Rafael J. Wysocki wrote:
>>> On Tuesday, January 04, 2011, Jiri Slaby wrote:
>>>> On 01/04/2011 02:40 PM, Jiri Slaby wrote:
>>>>> On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
>>>>>> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
>>>>>
>>>>> Hi, this kernel regresses with respect to suspend to ram in comparison
>>>>> with mmotm 2010-12-16-14-56.
>>>>>
>>>>> This is OK:
>>>>> echo devices > /sys/power/pm_test
>>>>> pm-suspend
>>>>> This hangs at suspend phase:
>>>>> echo platform > /sys/power/pm_test
>>>>> pm-suspend
>>>
>>> Hmm.  So it looks like _PTS hangs?
>>
>> No _PST here :).
> 
> I really meant _PTS and yes, there is one and it does quite a lot of
> interesting stuff.

Yeah, I grepped for _PTS, but in a wrong file. My bad.

> Are you able to collect serial console (or equivalent) logs from that machine?

Unfortunately I don't have a second machine with serial port. What
exactly you want to dig out of the logs? Will netconsole work at that phase?

regards,
-- 
js

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 01/05/2011 11:39 PM, Rafael J. Wysocki wrote:
> On Wednesday, January 05, 2011, Jiri Slaby wrote:
>> On 01/04/2011 11:57 PM, Rafael J. Wysocki wrote:
>>> On Tuesday, January 04, 2011, Jiri Slaby wrote:
>>>> On 01/04/2011 02:40 PM, Jiri Slaby wrote:
>>>>> On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
>>>>>> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
>>>>>
>>>>> Hi, this kernel regresses with respect to suspend to ram in comparison
>>>>> with mmotm 2010-12-16-14-56.
>>>>>
>>>>> This is OK:
>>>>> echo devices > /sys/power/pm_test
>>>>> pm-suspend
>>>>> This hangs at suspend phase:
>>>>> echo platform > /sys/power/pm_test
>>>>> pm-suspend
>>>
>>> Hmm.  So it looks like _PTS hangs?
>>
>> No _PST here :).
> 
> I really meant _PTS and yes, there is one and it does quite a lot of
> interesting stuff.

Yeah, I grepped for _PTS, but in a wrong file. My bad.

> Are you able to collect serial console (or equivalent) logs from that machine?

Unfortunately I don't have a second machine with serial port. What
exactly you want to dig out of the logs? Will netconsole work at that phase?

regards,
-- 
js

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Rafael J. Wysocki]

On Wednesday, January 05, 2011, Jiri Slaby wrote:
> On 01/05/2011 11:39 PM, Rafael J. Wysocki wrote:
> > On Wednesday, January 05, 2011, Jiri Slaby wrote:
> >> On 01/04/2011 11:57 PM, Rafael J. Wysocki wrote:
> >>> On Tuesday, January 04, 2011, Jiri Slaby wrote:
> >>>> On 01/04/2011 02:40 PM, Jiri Slaby wrote:
> >>>>> On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
> >>>>>> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> >>>>>
> >>>>> Hi, this kernel regresses with respect to suspend to ram in comparison
> >>>>> with mmotm 2010-12-16-14-56.
> >>>>>
> >>>>> This is OK:
> >>>>> echo devices > /sys/power/pm_test
> >>>>> pm-suspend
> >>>>> This hangs at suspend phase:
> >>>>> echo platform > /sys/power/pm_test
> >>>>> pm-suspend
> >>>
> >>> Hmm.  So it looks like _PTS hangs?
> >>
> >> No _PST here :).
> > 
> > I really meant _PTS and yes, there is one and it does quite a lot of
> > interesting stuff.
> 
> Yeah, I grepped for _PTS, but in a wrong file. My bad.
> 
> > Are you able to collect serial console (or equivalent) logs from that machine?
> 
> Unfortunately I don't have a second machine with serial port. What
> exactly you want to dig out of the logs? Will netconsole work at that phase?

I don't think so, the adapter will have been already suspended.

Hmm.  I guess you can boot with no_console_suspend in the kernel command line
and use the video console to get some debug info.  At this point we would like
to know where exactly it hangs, so you'd need to enable AML tracing in the
kernel and basically see what's printed last. :-)

Two more questions:
(1) Does the failing machine power off correctly with the kernel that fails to
    suspend?
(2) Is the failing suspend behavior reproducible if you run
    "echo disk > /sys/power/state" instead of "pm-suspend" in the platform test?

Rafael

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Rafael J. Wysocki]

On Wednesday, January 05, 2011, Jiri Slaby wrote:
> On 01/05/2011 11:39 PM, Rafael J. Wysocki wrote:
> > On Wednesday, January 05, 2011, Jiri Slaby wrote:
> >> On 01/04/2011 11:57 PM, Rafael J. Wysocki wrote:
> >>> On Tuesday, January 04, 2011, Jiri Slaby wrote:
> >>>> On 01/04/2011 02:40 PM, Jiri Slaby wrote:
> >>>>> On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
> >>>>>> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> >>>>>
> >>>>> Hi, this kernel regresses with respect to suspend to ram in comparison
> >>>>> with mmotm 2010-12-16-14-56.
> >>>>>
> >>>>> This is OK:
> >>>>> echo devices > /sys/power/pm_test
> >>>>> pm-suspend
> >>>>> This hangs at suspend phase:
> >>>>> echo platform > /sys/power/pm_test
> >>>>> pm-suspend
> >>>
> >>> Hmm.  So it looks like _PTS hangs?
> >>
> >> No _PST here :).
> > 
> > I really meant _PTS and yes, there is one and it does quite a lot of
> > interesting stuff.
> 
> Yeah, I grepped for _PTS, but in a wrong file. My bad.
> 
> > Are you able to collect serial console (or equivalent) logs from that machine?
> 
> Unfortunately I don't have a second machine with serial port. What
> exactly you want to dig out of the logs? Will netconsole work at that phase?

I don't think so, the adapter will have been already suspended.

Hmm.  I guess you can boot with no_console_suspend in the kernel command line
and use the video console to get some debug info.  At this point we would like
to know where exactly it hangs, so you'd need to enable AML tracing in the
kernel and basically see what's printed last. :-)

Two more questions:
(1) Does the failing machine power off correctly with the kernel that fails to
    suspend?
(2) Is the failing suspend behavior reproducible if you run
    "echo disk > /sys/power/state" instead of "pm-suspend" in the platform test?

Rafael

[PATCH 1/1] PM: fix oops in suspend/hibernate code

[Jiri Slaby]

When ioremap fails (which might happen for some reason), we nicely
oops in suspend_nvs_save due to NULL dereference by memcpy in there.
Fail gracefully instead.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
---
 drivers/acpi/sleep.c    |    5 ++---
 include/linux/suspend.h |    4 ++--
 kernel/power/nvs.c      |    8 +++++++-
 3 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index c423231..f94c9a9 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -124,8 +124,7 @@ static int acpi_pm_freeze(void)
 static int acpi_pm_pre_suspend(void)
 {
 	acpi_pm_freeze();
-	suspend_nvs_save();
-	return 0;
+	return suspend_nvs_save();
 }
 
 /**
@@ -151,7 +150,7 @@ static int acpi_pm_prepare(void)
 {
 	int error = __acpi_pm_prepare();
 	if (!error)
-		acpi_pm_pre_suspend();
+		error = acpi_pm_pre_suspend();
 
 	return error;
 }
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index c1f4998..3ac2551 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -262,7 +262,7 @@ static inline bool system_entering_hibernation(void) { return false; }
 extern int suspend_nvs_register(unsigned long start, unsigned long size);
 extern int suspend_nvs_alloc(void);
 extern void suspend_nvs_free(void);
-extern void suspend_nvs_save(void);
+extern int suspend_nvs_save(void);
 extern void suspend_nvs_restore(void);
 #else /* CONFIG_SUSPEND_NVS */
 static inline int suspend_nvs_register(unsigned long a, unsigned long b)
@@ -271,7 +271,7 @@ static inline int suspend_nvs_register(unsigned long a, unsigned long b)
 }
 static inline int suspend_nvs_alloc(void) { return 0; }
 static inline void suspend_nvs_free(void) {}
-static inline void suspend_nvs_save(void) {}
+static inline int suspend_nvs_save(void) {}
 static inline void suspend_nvs_restore(void) {}
 #endif /* CONFIG_SUSPEND_NVS */
 
diff --git a/kernel/power/nvs.c b/kernel/power/nvs.c
index 1836db6..57c6fab 100644
--- a/kernel/power/nvs.c
+++ b/kernel/power/nvs.c
@@ -105,7 +105,7 @@ int suspend_nvs_alloc(void)
 /**
  *	suspend_nvs_save - save NVS memory regions
  */
-void suspend_nvs_save(void)
+int suspend_nvs_save(void)
 {
 	struct nvs_page *entry;
 
@@ -114,8 +114,14 @@ void suspend_nvs_save(void)
 	list_for_each_entry(entry, &nvs_list, node)
 		if (entry->data) {
 			entry->kaddr = ioremap(entry->phys_start, entry->size);
+			if (!entry->kaddr) {
+				suspend_nvs_free();
+				return -ENOMEM;
+			}
 			memcpy(entry->data, entry->kaddr, entry->size);
 		}
+
+	return 0;
 }
 
 /**
-- 
1.7.3.4

Re: [PATCH 1/1] PM: fix oops in suspend/hibernate code

[Jiri Slaby]

On 01/06/2011 10:18 AM, Jiri Slaby wrote:
> When ioremap fails (which might happen for some reason), we nicely
> oops in suspend_nvs_save due to NULL dereference by memcpy in there.
> Fail gracefully instead.
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
> ---

Just to note, I'm not 100% sure whether the fail paths are OK with this
patch. But it works for me.

So it needs an ACK from Rafael or whoever wrote/understand the code.

>  drivers/acpi/sleep.c    |    5 ++---
>  include/linux/suspend.h |    4 ++--
>  kernel/power/nvs.c      |    8 +++++++-
>  3 files changed, 11 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
> index c423231..f94c9a9 100644
> --- a/drivers/acpi/sleep.c
> +++ b/drivers/acpi/sleep.c
> @@ -124,8 +124,7 @@ static int acpi_pm_freeze(void)
>  static int acpi_pm_pre_suspend(void)
>  {
>  	acpi_pm_freeze();
> -	suspend_nvs_save();
> -	return 0;
> +	return suspend_nvs_save();
>  }
>  
>  /**
> @@ -151,7 +150,7 @@ static int acpi_pm_prepare(void)
>  {
>  	int error = __acpi_pm_prepare();
>  	if (!error)
> -		acpi_pm_pre_suspend();
> +		error = acpi_pm_pre_suspend();
>  
>  	return error;
>  }
> diff --git a/include/linux/suspend.h b/include/linux/suspend.h
> index c1f4998..3ac2551 100644
> --- a/include/linux/suspend.h
> +++ b/include/linux/suspend.h
> @@ -262,7 +262,7 @@ static inline bool system_entering_hibernation(void) { return false; }
>  extern int suspend_nvs_register(unsigned long start, unsigned long size);
>  extern int suspend_nvs_alloc(void);
>  extern void suspend_nvs_free(void);
> -extern void suspend_nvs_save(void);
> +extern int suspend_nvs_save(void);
>  extern void suspend_nvs_restore(void);
>  #else /* CONFIG_SUSPEND_NVS */
>  static inline int suspend_nvs_register(unsigned long a, unsigned long b)
> @@ -271,7 +271,7 @@ static inline int suspend_nvs_register(unsigned long a, unsigned long b)
>  }
>  static inline int suspend_nvs_alloc(void) { return 0; }
>  static inline void suspend_nvs_free(void) {}
> -static inline void suspend_nvs_save(void) {}
> +static inline int suspend_nvs_save(void) {}
>  static inline void suspend_nvs_restore(void) {}
>  #endif /* CONFIG_SUSPEND_NVS */
>  
> diff --git a/kernel/power/nvs.c b/kernel/power/nvs.c
> index 1836db6..57c6fab 100644
> --- a/kernel/power/nvs.c
> +++ b/kernel/power/nvs.c
> @@ -105,7 +105,7 @@ int suspend_nvs_alloc(void)
>  /**
>   *	suspend_nvs_save - save NVS memory regions
>   */
> -void suspend_nvs_save(void)
> +int suspend_nvs_save(void)
>  {
>  	struct nvs_page *entry;
>  
> @@ -114,8 +114,14 @@ void suspend_nvs_save(void)
>  	list_for_each_entry(entry, &nvs_list, node)
>  		if (entry->data) {
>  			entry->kaddr = ioremap(entry->phys_start, entry->size);
> +			if (!entry->kaddr) {
> +				suspend_nvs_free();
> +				return -ENOMEM;
> +			}
>  			memcpy(entry->data, entry->kaddr, entry->size);
>  		}
> +
> +	return 0;
>  }
>  
>  /**


-- 
js

Re: [PATCH 1/1] PM: fix oops in suspend/hibernate code

[Rafael J. Wysocki]

On Thursday, January 06, 2011, Jiri Slaby wrote:
> When ioremap fails (which might happen for some reason),

If it happens, something is seriously wrong (see below).

BTW, to keep things in context, please post fixes like this in the same thread
in which you reported the problem.  At lease please retain the CC list from
there.

> we nicely oops in suspend_nvs_save due to NULL dereference by memcpy in
> there.  Fail gracefully instead.
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
> ---
>  drivers/acpi/sleep.c    |    5 ++---
>  include/linux/suspend.h |    4 ++--
>  kernel/power/nvs.c      |    8 +++++++-
>  3 files changed, 11 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
> index c423231..f94c9a9 100644
> --- a/drivers/acpi/sleep.c
> +++ b/drivers/acpi/sleep.c
> @@ -124,8 +124,7 @@ static int acpi_pm_freeze(void)
>  static int acpi_pm_pre_suspend(void)
>  {
>  	acpi_pm_freeze();
> -	suspend_nvs_save();
> -	return 0;
> +	return suspend_nvs_save();
>  }
>  
>  /**
> @@ -151,7 +150,7 @@ static int acpi_pm_prepare(void)
>  {
>  	int error = __acpi_pm_prepare();
>  	if (!error)
> -		acpi_pm_pre_suspend();
> +		error = acpi_pm_pre_suspend();
>  
>  	return error;
>  }
> diff --git a/include/linux/suspend.h b/include/linux/suspend.h
> index c1f4998..3ac2551 100644
> --- a/include/linux/suspend.h
> +++ b/include/linux/suspend.h
> @@ -262,7 +262,7 @@ static inline bool system_entering_hibernation(void) { return false; }
>  extern int suspend_nvs_register(unsigned long start, unsigned long size);
>  extern int suspend_nvs_alloc(void);
>  extern void suspend_nvs_free(void);
> -extern void suspend_nvs_save(void);
> +extern int suspend_nvs_save(void);
>  extern void suspend_nvs_restore(void);
>  #else /* CONFIG_SUSPEND_NVS */
>  static inline int suspend_nvs_register(unsigned long a, unsigned long b)
> @@ -271,7 +271,7 @@ static inline int suspend_nvs_register(unsigned long a, unsigned long b)
>  }
>  static inline int suspend_nvs_alloc(void) { return 0; }
>  static inline void suspend_nvs_free(void) {}
> -static inline void suspend_nvs_save(void) {}
> +static inline int suspend_nvs_save(void) {}
>  static inline void suspend_nvs_restore(void) {}
>  #endif /* CONFIG_SUSPEND_NVS */
>  
> diff --git a/kernel/power/nvs.c b/kernel/power/nvs.c
> index 1836db6..57c6fab 100644
> --- a/kernel/power/nvs.c
> +++ b/kernel/power/nvs.c
> @@ -105,7 +105,7 @@ int suspend_nvs_alloc(void)
>  /**
>   *	suspend_nvs_save - save NVS memory regions
>   */
> -void suspend_nvs_save(void)
> +int suspend_nvs_save(void)
>  {
>  	struct nvs_page *entry;
>  
> @@ -114,8 +114,14 @@ void suspend_nvs_save(void)
>  	list_for_each_entry(entry, &nvs_list, node)
>  		if (entry->data) {
>  			entry->kaddr = ioremap(entry->phys_start, entry->size);

I wonder what happens if you simply change the ioremap() here to
ioremap_nocache() without any other modifications?

It _really_ shouldn't fail here, because the NVS pages are known to be present.

> +			if (!entry->kaddr) {
> +				suspend_nvs_free();
> +				return -ENOMEM;
> +			}
>  			memcpy(entry->data, entry->kaddr, entry->size);
>  		}
> +
> +	return 0;
>  }
>  
>  /**
> 

Rafael

Re: [PATCH 1/1] PM: fix oops in suspend/hibernate code

[Jiri Slaby]

On 01/06/2011 04:57 PM, Rafael J. Wysocki wrote:
> On Thursday, January 06, 2011, Jiri Slaby wrote:
>> When ioremap fails (which might happen for some reason),
> 
> If it happens, something is seriously wrong (see below).

I agree that something is broken, however ioremap may fail for dozen of
reasons. Ignoring the retval is a *bad* idea and it took me a while to
sort out what is wrong. Especially if one has no console like throughout
suspend. If it was handled properly, I would know immediately. (There
should be a message printed out which I forgot to add.)

> BTW, to keep things in context, please post fixes like this in the same thread
> in which you reported the problem.  At lease please retain the CC list from
> there.

I actually did, there is:
In-Reply-To: <201101060028.43342.rjw@sisk.pl>
and it successfully threaded to the conversation for me in TB.

>> we nicely oops in suspend_nvs_save due to NULL dereference by memcpy in
>> there.  Fail gracefully instead.
>>
>> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
>> Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
>> ---
>>  drivers/acpi/sleep.c    |    5 ++---
>>  include/linux/suspend.h |    4 ++--
>>  kernel/power/nvs.c      |    8 +++++++-
>>  3 files changed, 11 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
>> index c423231..f94c9a9 100644
>> --- a/drivers/acpi/sleep.c
>> +++ b/drivers/acpi/sleep.c
>> @@ -124,8 +124,7 @@ static int acpi_pm_freeze(void)
>>  static int acpi_pm_pre_suspend(void)
>>  {
>>  	acpi_pm_freeze();
>> -	suspend_nvs_save();
>> -	return 0;
>> +	return suspend_nvs_save();
>>  }
>>  
>>  /**
>> @@ -151,7 +150,7 @@ static int acpi_pm_prepare(void)
>>  {
>>  	int error = __acpi_pm_prepare();
>>  	if (!error)
>> -		acpi_pm_pre_suspend();
>> +		error = acpi_pm_pre_suspend();
>>  
>>  	return error;
>>  }
>> diff --git a/include/linux/suspend.h b/include/linux/suspend.h
>> index c1f4998..3ac2551 100644
>> --- a/include/linux/suspend.h
>> +++ b/include/linux/suspend.h
>> @@ -262,7 +262,7 @@ static inline bool system_entering_hibernation(void) { return false; }
>>  extern int suspend_nvs_register(unsigned long start, unsigned long size);
>>  extern int suspend_nvs_alloc(void);
>>  extern void suspend_nvs_free(void);
>> -extern void suspend_nvs_save(void);
>> +extern int suspend_nvs_save(void);
>>  extern void suspend_nvs_restore(void);
>>  #else /* CONFIG_SUSPEND_NVS */
>>  static inline int suspend_nvs_register(unsigned long a, unsigned long b)
>> @@ -271,7 +271,7 @@ static inline int suspend_nvs_register(unsigned long a, unsigned long b)
>>  }
>>  static inline int suspend_nvs_alloc(void) { return 0; }
>>  static inline void suspend_nvs_free(void) {}
>> -static inline void suspend_nvs_save(void) {}
>> +static inline int suspend_nvs_save(void) {}
>>  static inline void suspend_nvs_restore(void) {}
>>  #endif /* CONFIG_SUSPEND_NVS */
>>  
>> diff --git a/kernel/power/nvs.c b/kernel/power/nvs.c
>> index 1836db6..57c6fab 100644
>> --- a/kernel/power/nvs.c
>> +++ b/kernel/power/nvs.c
>> @@ -105,7 +105,7 @@ int suspend_nvs_alloc(void)
>>  /**
>>   *	suspend_nvs_save - save NVS memory regions
>>   */
>> -void suspend_nvs_save(void)
>> +int suspend_nvs_save(void)
>>  {
>>  	struct nvs_page *entry;
>>  
>> @@ -114,8 +114,14 @@ void suspend_nvs_save(void)
>>  	list_for_each_entry(entry, &nvs_list, node)
>>  		if (entry->data) {
>>  			entry->kaddr = ioremap(entry->phys_start, entry->size);
> 
> I wonder what happens if you simply change the ioremap() here to
> ioremap_nocache() without any other modifications?

ioremap *is* ioremap_nocache on x86. And that's the conflict it
complains about I guess? Don't you mean ioremap_cache?

> It _really_ shouldn't fail here, because the NVS pages are known to be present.

It fails because of conflicting maps as can be seen in the photo. At
least I think so.

regards,
-- 
js

Re: [PATCH 1/1] PM: fix oops in suspend/hibernate code

[Jiri Slaby]

On 01/06/2011 05:09 PM, Jiri Slaby wrote:
>>> --- a/kernel/power/nvs.c
>>> +++ b/kernel/power/nvs.c
>>> @@ -105,7 +105,7 @@ int suspend_nvs_alloc(void)
>>>  /**
>>>   *	suspend_nvs_save - save NVS memory regions
>>>   */
>>> -void suspend_nvs_save(void)
>>> +int suspend_nvs_save(void)
>>>  {
>>>  	struct nvs_page *entry;
>>>  
>>> @@ -114,8 +114,14 @@ void suspend_nvs_save(void)
>>>  	list_for_each_entry(entry, &nvs_list, node)
>>>  		if (entry->data) {
>>>  			entry->kaddr = ioremap(entry->phys_start, entry->size);
>>
>> I wonder what happens if you simply change the ioremap() here to
>> ioremap_nocache() without any other modifications?
> 
> ioremap *is* ioremap_nocache on x86. And that's the conflict it
> complains about I guess? Don't you mean ioremap_cache?

Using ioremap_cache indeed fixes the problem...

thanks,
-- 
js

Re: [PATCH 1/1] PM: fix oops in suspend/hibernate code

[Jiri Slaby]

On 01/06/2011 05:09 PM, Jiri Slaby wrote:
>>> --- a/kernel/power/nvs.c
>>> +++ b/kernel/power/nvs.c
>>> @@ -105,7 +105,7 @@ int suspend_nvs_alloc(void)
>>>  /**
>>>   *	suspend_nvs_save - save NVS memory regions
>>>   */
>>> -void suspend_nvs_save(void)
>>> +int suspend_nvs_save(void)
>>>  {
>>>  	struct nvs_page *entry;
>>>  
>>> @@ -114,8 +114,14 @@ void suspend_nvs_save(void)
>>>  	list_for_each_entry(entry, &nvs_list, node)
>>>  		if (entry->data) {
>>>  			entry->kaddr = ioremap(entry->phys_start, entry->size);
>>
>> I wonder what happens if you simply change the ioremap() here to
>> ioremap_nocache() without any other modifications?
> 
> ioremap *is* ioremap_nocache on x86. And that's the conflict it
> complains about I guess? Don't you mean ioremap_cache?

Using ioremap_cache indeed fixes the problem...

thanks,
-- 
js

Re: [PATCH 1/1] PM: fix oops in suspend/hibernate code

[Rafael J. Wysocki]

On Thursday, January 06, 2011, Jiri Slaby wrote:
> On 01/06/2011 04:57 PM, Rafael J. Wysocki wrote:
> > On Thursday, January 06, 2011, Jiri Slaby wrote:
> >> When ioremap fails (which might happen for some reason),
> > 
> > If it happens, something is seriously wrong (see below).
> 
> I agree that something is broken, however ioremap may fail for dozen of
> reasons. Ignoring the retval is a *bad* idea and it took me a while to
> sort out what is wrong. Especially if one has no console like throughout
> suspend. If it was handled properly, I would know immediately. (There
> should be a message printed out which I forgot to add.)

It wasn't handled, because it _never_ failed previously.  The ACPI mapping
change apparently revealed a deeper problem.

I'm not saying the patch isn't useful, though, and I'm going to take it
for 2.6.38 (perhaps with minor modifications).

> > BTW, to keep things in context, please post fixes like this in the same thread
> > in which you reported the problem.  At lease please retain the CC list from
> > there.
> 
> I actually did, there is:
> In-Reply-To: <201101060028.43342.rjw@sisk.pl>
> and it successfully threaded to the conversation for me in TB.

But you trimmed the CC line, didn't you?  Which caused my filter to put the
patch into a different folder. :-)

> >> we nicely oops in suspend_nvs_save due to NULL dereference by memcpy in
> >> there.  Fail gracefully instead.
> >>
> >> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> >> Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
> >> ---
> >>  drivers/acpi/sleep.c    |    5 ++---
> >>  include/linux/suspend.h |    4 ++--
> >>  kernel/power/nvs.c      |    8 +++++++-
> >>  3 files changed, 11 insertions(+), 6 deletions(-)
> >>
> >> diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
> >> index c423231..f94c9a9 100644
> >> --- a/drivers/acpi/sleep.c
> >> +++ b/drivers/acpi/sleep.c
> >> @@ -124,8 +124,7 @@ static int acpi_pm_freeze(void)
> >>  static int acpi_pm_pre_suspend(void)
> >>  {
> >>  	acpi_pm_freeze();
> >> -	suspend_nvs_save();
> >> -	return 0;
> >> +	return suspend_nvs_save();
> >>  }
> >>  
> >>  /**
> >> @@ -151,7 +150,7 @@ static int acpi_pm_prepare(void)
> >>  {
> >>  	int error = __acpi_pm_prepare();
> >>  	if (!error)
> >> -		acpi_pm_pre_suspend();
> >> +		error = acpi_pm_pre_suspend();
> >>  
> >>  	return error;
> >>  }
> >> diff --git a/include/linux/suspend.h b/include/linux/suspend.h
> >> index c1f4998..3ac2551 100644
> >> --- a/include/linux/suspend.h
> >> +++ b/include/linux/suspend.h
> >> @@ -262,7 +262,7 @@ static inline bool system_entering_hibernation(void) { return false; }
> >>  extern int suspend_nvs_register(unsigned long start, unsigned long size);
> >>  extern int suspend_nvs_alloc(void);
> >>  extern void suspend_nvs_free(void);
> >> -extern void suspend_nvs_save(void);
> >> +extern int suspend_nvs_save(void);
> >>  extern void suspend_nvs_restore(void);
> >>  #else /* CONFIG_SUSPEND_NVS */
> >>  static inline int suspend_nvs_register(unsigned long a, unsigned long b)
> >> @@ -271,7 +271,7 @@ static inline int suspend_nvs_register(unsigned long a, unsigned long b)
> >>  }
> >>  static inline int suspend_nvs_alloc(void) { return 0; }
> >>  static inline void suspend_nvs_free(void) {}
> >> -static inline void suspend_nvs_save(void) {}
> >> +static inline int suspend_nvs_save(void) {}
> >>  static inline void suspend_nvs_restore(void) {}
> >>  #endif /* CONFIG_SUSPEND_NVS */
> >>  
> >> diff --git a/kernel/power/nvs.c b/kernel/power/nvs.c
> >> index 1836db6..57c6fab 100644
> >> --- a/kernel/power/nvs.c
> >> +++ b/kernel/power/nvs.c
> >> @@ -105,7 +105,7 @@ int suspend_nvs_alloc(void)
> >>  /**
> >>   *	suspend_nvs_save - save NVS memory regions
> >>   */
> >> -void suspend_nvs_save(void)
> >> +int suspend_nvs_save(void)
> >>  {
> >>  	struct nvs_page *entry;
> >>  
> >> @@ -114,8 +114,14 @@ void suspend_nvs_save(void)
> >>  	list_for_each_entry(entry, &nvs_list, node)
> >>  		if (entry->data) {
> >>  			entry->kaddr = ioremap(entry->phys_start, entry->size);
> > 
> > I wonder what happens if you simply change the ioremap() here to
> > ioremap_nocache() without any other modifications?
> 
> ioremap *is* ioremap_nocache on x86. And that's the conflict it
> complains about I guess? Don't you mean ioremap_cache?

Yes, I meant ioremap_cache(), sorry.  Using ioremap_cache() here fixes the
problem for Len (he's seeing the same issue on his test machine).

The question is why it helps, though.  My theory is that we have mapped the
same area already using ioremap_cache() and now we're trying to map it again
using ioremap_nocache(), hence the conflict.  I need to confirm this.

> > It _really_ shouldn't fail here, because the NVS pages are known to be present.
> 
> It fails because of conflicting maps as can be seen in the photo. At
> least I think so.

Yes, I think so too.  Which is _suspicious_.

Thanks,
Rafael

Re: [PATCH 1/1] PM: fix oops in suspend/hibernate code

[Len Brown]

> ... My theory is that we have mapped the
> same area already using ioremap_cache() and now we're trying to map it again
> using ioremap_nocache(), hence the conflict.  I need to confirm this.

On my test box.

BIOS-e820: 0000000077626000 - 0000000077632000 (ACPI NVS)

yet there are at least two tables (FACS and SSDT)
that live in that region, and there are several
run-time AML memory opregions residing in that range too.
So the region has already been mapped by acpi_os_map_memory()
(now using ioremap_cache()) before suspend_nvs_save() runs.

Is there a reason that suspend_nvs_save()
requires a non-cached mapping?

cheers,
Len Brown, Intel Open Source Technology Center

Re: [PATCH 1/1] PM: fix oops in suspend/hibernate code

[Len Brown]

> ... My theory is that we have mapped the
> same area already using ioremap_cache() and now we're trying to map it again
> using ioremap_nocache(), hence the conflict.  I need to confirm this.

On my test box.

BIOS-e820: 0000000077626000 - 0000000077632000 (ACPI NVS)

yet there are at least two tables (FACS and SSDT)
that live in that region, and there are several
run-time AML memory opregions residing in that range too.
So the region has already been mapped by acpi_os_map_memory()
(now using ioremap_cache()) before suspend_nvs_save() runs.

Is there a reason that suspend_nvs_save()
requires a non-cached mapping?

cheers,
Len Brown, Intel Open Source Technology Center

Re: [PATCH 1/1] PM: fix oops in suspend/hibernate code

[Rafael J. Wysocki]

On Thursday, January 06, 2011, Jiri Slaby wrote:
> On 01/06/2011 04:57 PM, Rafael J. Wysocki wrote:
> > On Thursday, January 06, 2011, Jiri Slaby wrote:
> >> When ioremap fails (which might happen for some reason),
> > 
> > If it happens, something is seriously wrong (see below).
> 
> I agree that something is broken, however ioremap may fail for dozen of
> reasons. Ignoring the retval is a *bad* idea and it took me a while to
> sort out what is wrong. Especially if one has no console like throughout
> suspend. If it was handled properly, I would know immediately. (There
> should be a message printed out which I forgot to add.)

It wasn't handled, because it _never_ failed previously.  The ACPI mapping
change apparently revealed a deeper problem.

I'm not saying the patch isn't useful, though, and I'm going to take it
for 2.6.38 (perhaps with minor modifications).

> > BTW, to keep things in context, please post fixes like this in the same thread
> > in which you reported the problem.  At lease please retain the CC list from
> > there.
> 
> I actually did, there is:
> In-Reply-To: <201101060028.43342.rjw@sisk.pl>
> and it successfully threaded to the conversation for me in TB.

But you trimmed the CC line, didn't you?  Which caused my filter to put the
patch into a different folder. :-)

> >> we nicely oops in suspend_nvs_save due to NULL dereference by memcpy in
> >> there.  Fail gracefully instead.
> >>
> >> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> >> Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
> >> ---
> >>  drivers/acpi/sleep.c    |    5 ++---
> >>  include/linux/suspend.h |    4 ++--
> >>  kernel/power/nvs.c      |    8 +++++++-
> >>  3 files changed, 11 insertions(+), 6 deletions(-)
> >>
> >> diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
> >> index c423231..f94c9a9 100644
> >> --- a/drivers/acpi/sleep.c
> >> +++ b/drivers/acpi/sleep.c
> >> @@ -124,8 +124,7 @@ static int acpi_pm_freeze(void)
> >>  static int acpi_pm_pre_suspend(void)
> >>  {
> >>  	acpi_pm_freeze();
> >> -	suspend_nvs_save();
> >> -	return 0;
> >> +	return suspend_nvs_save();
> >>  }
> >>  
> >>  /**
> >> @@ -151,7 +150,7 @@ static int acpi_pm_prepare(void)
> >>  {
> >>  	int error = __acpi_pm_prepare();
> >>  	if (!error)
> >> -		acpi_pm_pre_suspend();
> >> +		error = acpi_pm_pre_suspend();
> >>  
> >>  	return error;
> >>  }
> >> diff --git a/include/linux/suspend.h b/include/linux/suspend.h
> >> index c1f4998..3ac2551 100644
> >> --- a/include/linux/suspend.h
> >> +++ b/include/linux/suspend.h
> >> @@ -262,7 +262,7 @@ static inline bool system_entering_hibernation(void) { return false; }
> >>  extern int suspend_nvs_register(unsigned long start, unsigned long size);
> >>  extern int suspend_nvs_alloc(void);
> >>  extern void suspend_nvs_free(void);
> >> -extern void suspend_nvs_save(void);
> >> +extern int suspend_nvs_save(void);
> >>  extern void suspend_nvs_restore(void);
> >>  #else /* CONFIG_SUSPEND_NVS */
> >>  static inline int suspend_nvs_register(unsigned long a, unsigned long b)
> >> @@ -271,7 +271,7 @@ static inline int suspend_nvs_register(unsigned long a, unsigned long b)
> >>  }
> >>  static inline int suspend_nvs_alloc(void) { return 0; }
> >>  static inline void suspend_nvs_free(void) {}
> >> -static inline void suspend_nvs_save(void) {}
> >> +static inline int suspend_nvs_save(void) {}
> >>  static inline void suspend_nvs_restore(void) {}
> >>  #endif /* CONFIG_SUSPEND_NVS */
> >>  
> >> diff --git a/kernel/power/nvs.c b/kernel/power/nvs.c
> >> index 1836db6..57c6fab 100644
> >> --- a/kernel/power/nvs.c
> >> +++ b/kernel/power/nvs.c
> >> @@ -105,7 +105,7 @@ int suspend_nvs_alloc(void)
> >>  /**
> >>   *	suspend_nvs_save - save NVS memory regions
> >>   */
> >> -void suspend_nvs_save(void)
> >> +int suspend_nvs_save(void)
> >>  {
> >>  	struct nvs_page *entry;
> >>  
> >> @@ -114,8 +114,14 @@ void suspend_nvs_save(void)
> >>  	list_for_each_entry(entry, &nvs_list, node)
> >>  		if (entry->data) {
> >>  			entry->kaddr = ioremap(entry->phys_start, entry->size);
> > 
> > I wonder what happens if you simply change the ioremap() here to
> > ioremap_nocache() without any other modifications?
> 
> ioremap *is* ioremap_nocache on x86. And that's the conflict it
> complains about I guess? Don't you mean ioremap_cache?

Yes, I meant ioremap_cache(), sorry.  Using ioremap_cache() here fixes the
problem for Len (he's seeing the same issue on his test machine).

The question is why it helps, though.  My theory is that we have mapped the
same area already using ioremap_cache() and now we're trying to map it again
using ioremap_nocache(), hence the conflict.  I need to confirm this.

> > It _really_ shouldn't fail here, because the NVS pages are known to be present.
> 
> It fails because of conflicting maps as can be seen in the photo. At
> least I think so.

Yes, I think so too.  Which is _suspicious_.

Thanks,
Rafael

Re: [PATCH 1/1] PM: fix oops in suspend/hibernate code

[Jiri Slaby]

On 01/06/2011 04:57 PM, Rafael J. Wysocki wrote:
> On Thursday, January 06, 2011, Jiri Slaby wrote:
>> When ioremap fails (which might happen for some reason),
> 
> If it happens, something is seriously wrong (see below).

I agree that something is broken, however ioremap may fail for dozen of
reasons. Ignoring the retval is a *bad* idea and it took me a while to
sort out what is wrong. Especially if one has no console like throughout
suspend. If it was handled properly, I would know immediately. (There
should be a message printed out which I forgot to add.)

> BTW, to keep things in context, please post fixes like this in the same thread
> in which you reported the problem.  At lease please retain the CC list from
> there.

I actually did, there is:
In-Reply-To: <201101060028.43342.rjw@sisk.pl>
and it successfully threaded to the conversation for me in TB.

>> we nicely oops in suspend_nvs_save due to NULL dereference by memcpy in
>> there.  Fail gracefully instead.
>>
>> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
>> Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
>> ---
>>  drivers/acpi/sleep.c    |    5 ++---
>>  include/linux/suspend.h |    4 ++--
>>  kernel/power/nvs.c      |    8 +++++++-
>>  3 files changed, 11 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
>> index c423231..f94c9a9 100644
>> --- a/drivers/acpi/sleep.c
>> +++ b/drivers/acpi/sleep.c
>> @@ -124,8 +124,7 @@ static int acpi_pm_freeze(void)
>>  static int acpi_pm_pre_suspend(void)
>>  {
>>  	acpi_pm_freeze();
>> -	suspend_nvs_save();
>> -	return 0;
>> +	return suspend_nvs_save();
>>  }
>>  
>>  /**
>> @@ -151,7 +150,7 @@ static int acpi_pm_prepare(void)
>>  {
>>  	int error = __acpi_pm_prepare();
>>  	if (!error)
>> -		acpi_pm_pre_suspend();
>> +		error = acpi_pm_pre_suspend();
>>  
>>  	return error;
>>  }
>> diff --git a/include/linux/suspend.h b/include/linux/suspend.h
>> index c1f4998..3ac2551 100644
>> --- a/include/linux/suspend.h
>> +++ b/include/linux/suspend.h
>> @@ -262,7 +262,7 @@ static inline bool system_entering_hibernation(void) { return false; }
>>  extern int suspend_nvs_register(unsigned long start, unsigned long size);
>>  extern int suspend_nvs_alloc(void);
>>  extern void suspend_nvs_free(void);
>> -extern void suspend_nvs_save(void);
>> +extern int suspend_nvs_save(void);
>>  extern void suspend_nvs_restore(void);
>>  #else /* CONFIG_SUSPEND_NVS */
>>  static inline int suspend_nvs_register(unsigned long a, unsigned long b)
>> @@ -271,7 +271,7 @@ static inline int suspend_nvs_register(unsigned long a, unsigned long b)
>>  }
>>  static inline int suspend_nvs_alloc(void) { return 0; }
>>  static inline void suspend_nvs_free(void) {}
>> -static inline void suspend_nvs_save(void) {}
>> +static inline int suspend_nvs_save(void) {}
>>  static inline void suspend_nvs_restore(void) {}
>>  #endif /* CONFIG_SUSPEND_NVS */
>>  
>> diff --git a/kernel/power/nvs.c b/kernel/power/nvs.c
>> index 1836db6..57c6fab 100644
>> --- a/kernel/power/nvs.c
>> +++ b/kernel/power/nvs.c
>> @@ -105,7 +105,7 @@ int suspend_nvs_alloc(void)
>>  /**
>>   *	suspend_nvs_save - save NVS memory regions
>>   */
>> -void suspend_nvs_save(void)
>> +int suspend_nvs_save(void)
>>  {
>>  	struct nvs_page *entry;
>>  
>> @@ -114,8 +114,14 @@ void suspend_nvs_save(void)
>>  	list_for_each_entry(entry, &nvs_list, node)
>>  		if (entry->data) {
>>  			entry->kaddr = ioremap(entry->phys_start, entry->size);
> 
> I wonder what happens if you simply change the ioremap() here to
> ioremap_nocache() without any other modifications?

ioremap *is* ioremap_nocache on x86. And that's the conflict it
complains about I guess? Don't you mean ioremap_cache?

> It _really_ shouldn't fail here, because the NVS pages are known to be present.

It fails because of conflicting maps as can be seen in the photo. At
least I think so.

regards,
-- 
js

Re: [PATCH 1/1] PM: fix oops in suspend/hibernate code

[Rafael J. Wysocki]

On Thursday, January 06, 2011, Jiri Slaby wrote:
> When ioremap fails (which might happen for some reason),

If it happens, something is seriously wrong (see below).

BTW, to keep things in context, please post fixes like this in the same thread
in which you reported the problem.  At lease please retain the CC list from
there.

> we nicely oops in suspend_nvs_save due to NULL dereference by memcpy in
> there.  Fail gracefully instead.
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
> ---
>  drivers/acpi/sleep.c    |    5 ++---
>  include/linux/suspend.h |    4 ++--
>  kernel/power/nvs.c      |    8 +++++++-
>  3 files changed, 11 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
> index c423231..f94c9a9 100644
> --- a/drivers/acpi/sleep.c
> +++ b/drivers/acpi/sleep.c
> @@ -124,8 +124,7 @@ static int acpi_pm_freeze(void)
>  static int acpi_pm_pre_suspend(void)
>  {
>  	acpi_pm_freeze();
> -	suspend_nvs_save();
> -	return 0;
> +	return suspend_nvs_save();
>  }
>  
>  /**
> @@ -151,7 +150,7 @@ static int acpi_pm_prepare(void)
>  {
>  	int error = __acpi_pm_prepare();
>  	if (!error)
> -		acpi_pm_pre_suspend();
> +		error = acpi_pm_pre_suspend();
>  
>  	return error;
>  }
> diff --git a/include/linux/suspend.h b/include/linux/suspend.h
> index c1f4998..3ac2551 100644
> --- a/include/linux/suspend.h
> +++ b/include/linux/suspend.h
> @@ -262,7 +262,7 @@ static inline bool system_entering_hibernation(void) { return false; }
>  extern int suspend_nvs_register(unsigned long start, unsigned long size);
>  extern int suspend_nvs_alloc(void);
>  extern void suspend_nvs_free(void);
> -extern void suspend_nvs_save(void);
> +extern int suspend_nvs_save(void);
>  extern void suspend_nvs_restore(void);
>  #else /* CONFIG_SUSPEND_NVS */
>  static inline int suspend_nvs_register(unsigned long a, unsigned long b)
> @@ -271,7 +271,7 @@ static inline int suspend_nvs_register(unsigned long a, unsigned long b)
>  }
>  static inline int suspend_nvs_alloc(void) { return 0; }
>  static inline void suspend_nvs_free(void) {}
> -static inline void suspend_nvs_save(void) {}
> +static inline int suspend_nvs_save(void) {}
>  static inline void suspend_nvs_restore(void) {}
>  #endif /* CONFIG_SUSPEND_NVS */
>  
> diff --git a/kernel/power/nvs.c b/kernel/power/nvs.c
> index 1836db6..57c6fab 100644
> --- a/kernel/power/nvs.c
> +++ b/kernel/power/nvs.c
> @@ -105,7 +105,7 @@ int suspend_nvs_alloc(void)
>  /**
>   *	suspend_nvs_save - save NVS memory regions
>   */
> -void suspend_nvs_save(void)
> +int suspend_nvs_save(void)
>  {
>  	struct nvs_page *entry;
>  
> @@ -114,8 +114,14 @@ void suspend_nvs_save(void)
>  	list_for_each_entry(entry, &nvs_list, node)
>  		if (entry->data) {
>  			entry->kaddr = ioremap(entry->phys_start, entry->size);

I wonder what happens if you simply change the ioremap() here to
ioremap_nocache() without any other modifications?

It _really_ shouldn't fail here, because the NVS pages are known to be present.

> +			if (!entry->kaddr) {
> +				suspend_nvs_free();
> +				return -ENOMEM;
> +			}
>  			memcpy(entry->data, entry->kaddr, entry->size);
>  		}
> +
> +	return 0;
>  }
>  
>  /**
> 

Rafael

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 01/06/2011 12:28 AM, Rafael J. Wysocki wrote:
> Two more questions:
> (1) Does the failing machine power off correctly with the kernel that fails to
>     suspend?

Poweroff is OK.

> (2) Is the failing suspend behavior reproducible if you run
>     "echo disk > /sys/power/state" instead of "pm-suspend" in the platform test?

Thanks for the hint no_console_suspend with hibernate shows somwthing
(opposing to suspend). I've sent a patch for the oops which occured due
to ioremap change. The ioremap change still needs to be reverted, obviously.

The oops in question:
http://www.fi.muni.cz/~xslaby/sklad/panics/suspend-oops.png

/proc/mtrr:
reg00: base=0x0b0000000 ( 2816MB), size=  256MB, count=1: uncachable
reg01: base=0x0c0000000 ( 3072MB), size= 1024MB, count=1: uncachable
reg02: base=0x000000000 (    0MB), size= 4096MB, count=1: write-back
reg03: base=0x100000000 ( 4096MB), size= 2048MB, count=1: write-back
reg04: base=0x180000000 ( 6144MB), size= 1024MB, count=1: write-back
reg05: base=0x1c0000000 ( 7168MB), size=  128MB, count=1: write-back
reg06: base=0x1c8000000 ( 7296MB), size=   64MB, count=1: write-back
reg07: base=0x0af600000 ( 2806MB), size=    2MB, count=1: uncachable

/debug/x86/pat_memtype_list:
PAT memtype list:
uncached-minus @ 0xaf5b0000-0xaf5b7000
uncached-minus @ 0xaf5be000-0xaf5c1000
uncached-minus @ 0xaf5be000-0xaf5c1000
uncached-minus @ 0xaf5be000-0xaf5bf000
uncached-minus @ 0xb0200000-0xb0201000
write-combining @ 0xd0000000-0xe0000000
write-combining @ 0xd0001000-0xd0021000
write-combining @ 0xd0030000-0xd0530000
uncached-minus @ 0xe0000000-0xf0000000
uncached-minus @ 0xfe6ff000-0xfe700000
uncached-minus @ 0xfe7e0000-0xfe800000
uncached-minus @ 0xfea00000-0xfea80000
uncached-minus @ 0xfeb40000-0xfeb60000
uncached-minus @ 0xfeb78000-0xfeb7c000
uncached-minus @ 0xfeb7c000-0xfeb7d000
uncached-minus @ 0xfeb7d000-0xfeb7e000
uncached-minus @ 0xfeb7f000-0xfeb80000
uncached-minus @ 0xfeb7f000-0xfeb80000
uncached-minus @ 0xfeb80000-0xfec00000
uncached-minus @ 0xfeb80000-0xfec00000
uncached-minus @ 0xfed00000-0xfed01000
uncached-minus @ 0xfed1f000-0xfed20000
uncached-minus @ 0xffff0000-0xffff1000

regards,
-- 
js

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 01/06/2011 12:28 AM, Rafael J. Wysocki wrote:
> Two more questions:
> (1) Does the failing machine power off correctly with the kernel that fails to
>     suspend?

Poweroff is OK.

> (2) Is the failing suspend behavior reproducible if you run
>     "echo disk > /sys/power/state" instead of "pm-suspend" in the platform test?

Thanks for the hint no_console_suspend with hibernate shows somwthing
(opposing to suspend). I've sent a patch for the oops which occured due
to ioremap change. The ioremap change still needs to be reverted, obviously.

The oops in question:
http://www.fi.muni.cz/~xslaby/sklad/panics/suspend-oops.png

/proc/mtrr:
reg00: base=0x0b0000000 ( 2816MB), size=  256MB, count=1: uncachable
reg01: base=0x0c0000000 ( 3072MB), size= 1024MB, count=1: uncachable
reg02: base=0x000000000 (    0MB), size= 4096MB, count=1: write-back
reg03: base=0x100000000 ( 4096MB), size= 2048MB, count=1: write-back
reg04: base=0x180000000 ( 6144MB), size= 1024MB, count=1: write-back
reg05: base=0x1c0000000 ( 7168MB), size=  128MB, count=1: write-back
reg06: base=0x1c8000000 ( 7296MB), size=   64MB, count=1: write-back
reg07: base=0x0af600000 ( 2806MB), size=    2MB, count=1: uncachable

/debug/x86/pat_memtype_list:
PAT memtype list:
uncached-minus @ 0xaf5b0000-0xaf5b7000
uncached-minus @ 0xaf5be000-0xaf5c1000
uncached-minus @ 0xaf5be000-0xaf5c1000
uncached-minus @ 0xaf5be000-0xaf5bf000
uncached-minus @ 0xb0200000-0xb0201000
write-combining @ 0xd0000000-0xe0000000
write-combining @ 0xd0001000-0xd0021000
write-combining @ 0xd0030000-0xd0530000
uncached-minus @ 0xe0000000-0xf0000000
uncached-minus @ 0xfe6ff000-0xfe700000
uncached-minus @ 0xfe7e0000-0xfe800000
uncached-minus @ 0xfea00000-0xfea80000
uncached-minus @ 0xfeb40000-0xfeb60000
uncached-minus @ 0xfeb78000-0xfeb7c000
uncached-minus @ 0xfeb7c000-0xfeb7d000
uncached-minus @ 0xfeb7d000-0xfeb7e000
uncached-minus @ 0xfeb7f000-0xfeb80000
uncached-minus @ 0xfeb7f000-0xfeb80000
uncached-minus @ 0xfeb80000-0xfec00000
uncached-minus @ 0xfeb80000-0xfec00000
uncached-minus @ 0xfed00000-0xfed01000
uncached-minus @ 0xfed1f000-0xfed20000
uncached-minus @ 0xffff0000-0xffff1000

regards,
-- 
js

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Rafael J. Wysocki]

On Thursday, January 06, 2011, Jiri Slaby wrote:
> On 01/06/2011 12:28 AM, Rafael J. Wysocki wrote:
> > Two more questions:
> > (1) Does the failing machine power off correctly with the kernel that fails to
> >     suspend?
> 
> Poweroff is OK.
> 
> > (2) Is the failing suspend behavior reproducible if you run
> >     "echo disk > /sys/power/state" instead of "pm-suspend" in the platform test?
> 
> Thanks for the hint no_console_suspend with hibernate shows somwthing
> (opposing to suspend). I've sent a patch for the oops which occured due
> to ioremap change.

Can you send a link to the patch, please?

> The ioremap change still needs to be reverted, obviously.

Does it need to be reverted with your patch applied too?

Rafael

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Rafael J. Wysocki]

On Thursday, January 06, 2011, Jiri Slaby wrote:
> On 01/06/2011 12:28 AM, Rafael J. Wysocki wrote:
> > Two more questions:
> > (1) Does the failing machine power off correctly with the kernel that fails to
> >     suspend?
> 
> Poweroff is OK.
> 
> > (2) Is the failing suspend behavior reproducible if you run
> >     "echo disk > /sys/power/state" instead of "pm-suspend" in the platform test?
> 
> Thanks for the hint no_console_suspend with hibernate shows somwthing
> (opposing to suspend). I've sent a patch for the oops which occured due
> to ioremap change.

Can you send a link to the patch, please?

> The ioremap change still needs to be reverted, obviously.

Does it need to be reverted with your patch applied too?

Rafael

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Rafael J. Wysocki]

On Wednesday, January 05, 2011, Jiri Slaby wrote:
> On 01/04/2011 11:57 PM, Rafael J. Wysocki wrote:
> > On Tuesday, January 04, 2011, Jiri Slaby wrote:
> >> On 01/04/2011 02:40 PM, Jiri Slaby wrote:
> >>> On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
> >>>> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> >>>
> >>> Hi, this kernel regresses with respect to suspend to ram in comparison
> >>> with mmotm 2010-12-16-14-56.
> >>>
> >>> This is OK:
> >>> echo devices > /sys/power/pm_test
> >>> pm-suspend
> >>> This hangs at suspend phase:
> >>> echo platform > /sys/power/pm_test
> >>> pm-suspend
> > 
> > Hmm.  So it looks like _PTS hangs?
> 
> No _PST here :).

I really meant _PTS and yes, there is one and it does quite a lot of
interesting stuff.

Are you able to collect serial console (or equivalent) logs from that machine?

Rafael

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Rafael J. Wysocki]

On Tuesday, January 04, 2011, Jiri Slaby wrote:
> On 01/04/2011 02:40 PM, Jiri Slaby wrote:
> > On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
> >> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> > 
> > Hi, this kernel regresses with respect to suspend to ram in comparison
> > with mmotm 2010-12-16-14-56.
> > 
> > This is OK:
> > echo devices > /sys/power/pm_test
> > pm-suspend
> > This hangs at suspend phase:
> > echo platform > /sys/power/pm_test
> > pm-suspend

Hmm.  So it looks like _PTS hangs?

> > Note that this kernel is based on next-20101221. Should I try newer (and
> > clean) -next?
> 
> Ok, bisected down to:
> 16dc39c98a6ca56a27f22f7ac6731d8223237a2e is first bad commit
> commit 16dc39c98a6ca56a27f22f7ac6731d8223237a2e
> Author: Len Brown <len.brown@intel.com>
> Date:   Thu Dec 16 23:12:23 2010 -0500
> 
>     ACPI: use ioremap_cache()
> 
>     Although the temporary boot-time ACPI table mappings
>     were set up with CPU caching enabled, the permanent table
>     mappings and AML run-time region memory accesses were
>     set up with ioremap(), which on x86 is a synonym for
>     ioremap_nocache().
> 
>     Changing this to ioremap_cache() improves performance as
>     seen when accessing the tables via acpidump,
>     or /sys/firmware/acpi/tables.  It should also improve
>     AML run-time performance.
> 
>     No change on ia64.
> 
>     Reported-by: Jack Steiner <steiner@sgi.com>
>     Signed-off-by: Len Brown <len.brown@intel.com>
> 
> :040000 040000 be35c5e8f214f10f94688c1a27f33ecfb8505220
> 52581222d0edf190f160f3e5aa5d2c1af8e76988 M      arch
> :040000 040000 ccdca0d41938b8312e946cde3c01c59b32d1c17c
> 96ccf2357f2ac4a31d19cc41f5728d9f87b6cac0 M      drivers
> 
> Revert of that patch fixes the problem.

Can you send a dmesg output and acpidump output from the failing system, please?

Rafael

ia64 build broken [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 01/04/2011 05:49 PM, Jiri Slaby wrote:
> 16dc39c98a6ca56a27f22f7ac6731d8223237a2e is first bad commit
> commit 16dc39c98a6ca56a27f22f7ac6731d8223237a2e
> Author: Len Brown <len.brown@intel.com>
> Date:   Thu Dec 16 23:12:23 2010 -0500
> 
>     ACPI: use ioremap_cache()
> 
>     Although the temporary boot-time ACPI table mappings
>     were set up with CPU caching enabled, the permanent table
>     mappings and AML run-time region memory accesses were
>     set up with ioremap(), which on x86 is a synonym for
>     ioremap_nocache().
> 
>     Changing this to ioremap_cache() improves performance as
>     seen when accessing the tables via acpidump,
>     or /sys/firmware/acpi/tables.  It should also improve
>     AML run-time performance.
> 
>     No change on ia64.

BTW I've just noted, you actually broke ia64. The code reads like:
   return ioremap(unsigned long phys_addr, unsigned long size);

regards,
-- 
js

ia64 build broken [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 01/04/2011 05:49 PM, Jiri Slaby wrote:
> 16dc39c98a6ca56a27f22f7ac6731d8223237a2e is first bad commit
> commit 16dc39c98a6ca56a27f22f7ac6731d8223237a2e
> Author: Len Brown <len.brown@intel.com>
> Date:   Thu Dec 16 23:12:23 2010 -0500
> 
>     ACPI: use ioremap_cache()
> 
>     Although the temporary boot-time ACPI table mappings
>     were set up with CPU caching enabled, the permanent table
>     mappings and AML run-time region memory accesses were
>     set up with ioremap(), which on x86 is a synonym for
>     ioremap_nocache().
> 
>     Changing this to ioremap_cache() improves performance as
>     seen when accessing the tables via acpidump,
>     or /sys/firmware/acpi/tables.  It should also improve
>     AML run-time performance.
> 
>     No change on ia64.

BTW I've just noted, you actually broke ia64. The code reads like:
   return ioremap(unsigned long phys_addr, unsigned long size);

regards,
-- 
js

[PATCH 1/1] ia64: fix build of ioremap_cache

[Jiri Slaby]

Commit "ACPI: use ioremap_cache()" introduced ioremap_cache which
causes build failures. Remove "unsigned long" from parameters of
called ioremap.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Len Brown <len.brown@intel.com>
---
 arch/ia64/include/asm/io.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
index 009a7e0..e5a6c35 100644
--- a/arch/ia64/include/asm/io.h
+++ b/arch/ia64/include/asm/io.h
@@ -428,7 +428,7 @@ extern void __iomem * early_ioremap (unsigned long phys_addr, unsigned long size
 extern void early_iounmap (volatile void __iomem *addr, unsigned long size);
 static inline void __iomem * ioremap_cache (unsigned long phys_addr, unsigned long size)
 {
-	return ioremap(unsigned long phys_addr, unsigned long size);
+	return ioremap(phys_addr, size);
 }
 
 
-- 
1.7.3.4

Re: [PATCH 1/1] ia64: fix build of ioremap_cache

[Len Brown]

> diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
> index 009a7e0..e5a6c35 100644
> --- a/arch/ia64/include/asm/io.h
> +++ b/arch/ia64/include/asm/io.h
> @@ -428,7 +428,7 @@ extern void __iomem * early_ioremap (unsigned long phys_addr, unsigned long size
>  extern void early_iounmap (volatile void __iomem *addr, unsigned long size);
>  static inline void __iomem * ioremap_cache (unsigned long phys_addr, unsigned long size)
>  {
> -	return ioremap(unsigned long phys_addr, unsigned long size);
> +	return ioremap(phys_addr, size);
>  }

I pushed this fix 9 days ago, what tree are you running?

thanks,
Len Brown, Intel Open Source Technology Center

Re: [PATCH 1/1] ia64: fix build of ioremap_cache

[Jiri Slaby]

On 01/06/2011 05:03 PM, Len Brown wrote:
> 
>> diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
>> index 009a7e0..e5a6c35 100644
>> --- a/arch/ia64/include/asm/io.h
>> +++ b/arch/ia64/include/asm/io.h
>> @@ -428,7 +428,7 @@ extern void __iomem * early_ioremap (unsigned long phys_addr, unsigned long size
>>  extern void early_iounmap (volatile void __iomem *addr, unsigned long size);
>>  static inline void __iomem * ioremap_cache (unsigned long phys_addr, unsigned long size)
>>  {
>> -	return ioremap(unsigned long phys_addr, unsigned long size);
>> +	return ioremap(phys_addr, size);
>>  }
> 
> I pushed this fix 9 days ago, what tree are you running?

Aha, you melded the fix into the original patch. I only checked whether
there was a change on the top of that commit. So ignore this patch and
sorry for the noise.

regards,
-- 
js

Re: suspend hangs at platform phase [was: mmotm 2010-12-23-16-58 uploaded]

[Jiri Slaby]

On 01/04/2011 02:40 PM, Jiri Slaby wrote:
> On 12/24/2010 01:58 AM, akpm@linux-foundation.org wrote:
>> The mm-of-the-moment snapshot 2010-12-23-16-58 has been uploaded to
> 
> Hi, this kernel regresses with respect to suspend to ram in comparison
> with mmotm 2010-12-16-14-56.
> 
> This is OK:
> echo devices > /sys/power/pm_test
> pm-suspend
> This hangs at suspend phase:
> echo platform > /sys/power/pm_test
> pm-suspend
> 
> Note that this kernel is based on next-20101221. Should I try newer (and
> clean) -next?

Ok, bisected down to:
16dc39c98a6ca56a27f22f7ac6731d8223237a2e is first bad commit
commit 16dc39c98a6ca56a27f22f7ac6731d8223237a2e
Author: Len Brown <len.brown@intel.com>
Date:   Thu Dec 16 23:12:23 2010 -0500

    ACPI: use ioremap_cache()

    Although the temporary boot-time ACPI table mappings
    were set up with CPU caching enabled, the permanent table
    mappings and AML run-time region memory accesses were
    set up with ioremap(), which on x86 is a synonym for
    ioremap_nocache().

    Changing this to ioremap_cache() improves performance as
    seen when accessing the tables via acpidump,
    or /sys/firmware/acpi/tables.  It should also improve
    AML run-time performance.

    No change on ia64.

    Reported-by: Jack Steiner <steiner@sgi.com>
    Signed-off-by: Len Brown <len.brown@intel.com>

:040000 040000 be35c5e8f214f10f94688c1a27f33ecfb8505220
52581222d0edf190f160f3e5aa5d2c1af8e76988 M      arch
:040000 040000 ccdca0d41938b8312e946cde3c01c59b32d1c17c
96ccf2357f2ac4a31d19cc41f5728d9f87b6cac0 M      drivers

Revert of that patch fixes the problem.

regards,
-- 
js