mmotm 2010-05-19-16-12 uploaded

mmotm 2010-05-19-16-12 uploaded

[akpm]

The mm-of-the-moment snapshot 2010-05-19-16-12 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 2.6.34:

origin.patch
linux-next.patch
next-remove-localversion.patch
i-need-old-gcc.patch
include-linux-fsh-complete-hexification-of-fmode_-constants.patch
fbdev-fix-kconfig-breakage-in-drivers-video.patch
acpi-video-fix-acpi_backlight=video.patch
cpufreq-revert-remove-rwsem-lock-from-cpufreq_gov_stop-call-second-call-site.patch
drivers-pci-intel-iommuc-errors-with-smaller-iommu-widths.patch
drivers-pci-intel-iommuc-errors-with-smaller-iommu-widths-fix.patch
sched-prevent-compiler-from-optimising-sched_avg_update-loop.patch
drivers-scsi-aacraid-eliminate-use-after-free.patch
acerhdf-add-new-bios-versions.patch
x86-apic-ack-all-pending-irqs-when-crashed-on-kexec-v5.patch
arch-x86-pci-use-kasprintf.patch
x86-nosmp-command-line-option-should-force-the-system-into-up-mode.patch
arch-x86-kernel-setupcl-phoenix-bios-fixup-is-needed-on-dell-inspiron-mini-1012.patch
x86-remove-last-traces-of-quicklist-usage.patch
lib-atomic64_test-fix-missing-include-of-linux-kernelh.patch
timer-add-on-stack-deferrable-timer-interfaces.patch
x86-platform-driver-intelligent-power-sharing-driver.patch
x86-platform-driver-intelligent-power-sharing-driver-checkpatch-fixes.patch
compal-laptop-added-jhl90-battery-hwmon-interface.patch
agp-amd64-fix-pci-reference-leaks.patch
cifs-provide-user-with-a-hint-when-name-resolution-fails.patch
dib3000mc-reduce-large-stack-usage-fix.patch
fs-fscache-object-listc-fix-warning-on-32-bit.patch
gpiolib-introduce-chip-addition-removal-notifier.patch
of-gpio-add-support-for-two-stage-registration-for-the-of_gpio_chips.patch
of-gpio-implement-gpiolib-notifier-hooks.patch
powerpc-mcu_mpc8349emitx-remove-of-gpio-handling-stuff.patch
gpiolib-cosmetic-improvements-for-error-handling-in-gpiochip_add.patch
hpet-factor-timer-allocate-from-open.patch
usbtouchscreen-support-bigger-inexio-touchscreens.patch
led-driver-for-the-soekris-net5501-board.patch
leds-route-kbd-leds-through-the-generic-leds-layer.patch
score-fix-dereference-of-null-pointer-in-local_flush_tlb_page.patch
3x59x-fix-pci-resource-management.patch
mbp_nvidia_bl-add-support-for-older-macbookpro-and-macbook-61.patch
backlight-add-s6e63m0-amoled-lcd-panel-driver.patch
backlight-add-s6e63m0-amoled-lcd-panel-driver-checkpatch-fixes.patch
backlight-add-s6e63m0-amoled-lcd-panel-driver-update.patch
btusb-patch-add_apple_macbookpro62.patch
fix-stop_machine-reimplement-using-cpu_stop.patch
scsi-add-__init-__exit-macros-to-ibmvstgtc.patch
drivers-scsi-fnic-fnic_scsic-clean-up.patch
drivers-scsi-lpfc-lpfc_vportc-fix-read-buffer-overflow.patch
osst-fix-read-buffer-overflow.patch
gdth-unmap-ccb_phys-when-scsi_add_host-fails-in-gdth_eisa_probe_one.patch
drivers-scsi-libsas-use-sam_good.patch
ncr5380-bit-mr_dma_mode-set-twice-in-ncr5380_transfer_dma.patch
drivers-scsi-remove-unnecessary-null-test.patch
drivers-message-move-dereference-after-null-test.patch
mpt-fusion-convert-to-seq_file.patch
g_ncr5380-remove-misleading-pnp-error-message.patch
g_ncr5380-fix-broken-mmio-compilation.patch
dc395x-decrease-iteration-for-tag_number-of-max_command-in-start_scsi.patch
drivers-scsi-correct-the-size-argument-to-kmalloc.patch
scsi-remove-superfluous-null-pointer-check-from-scsi_kill_request.patch
scsi-sdc-quiet-all-sparse-noise.patch
lpfc-positive-error-return-into-negative.patch
drivers-scsi-qla2xxx-qla_osc-fix-continuation-line-formats.patch
scsi-bfa-correct-onstack-wait_queue_head-declaration.patch
drivers-scsi-chc-dont-use-vprintk-as-macro.patch
bfa-wrong-fcport-h2i-message-tested-in-bfa_fcport_isr.patch
scsi-use-__ux-types-for-headers-exported-to-user-space.patch
scsi-fix-pmcraid-build-errors.patch
scsi-fix-be2iscsi-build.patch
scsi-fix-bnx2i-build-errors.patch
scsi-remove-private-bit-macros.patch
fs-splicec-fix-mapping_gfp_mask-usage.patch
virtio_9ph-include-linux-typesh.patch
vfs-improve-comment-describing-fget_light.patch
vfs-o_-bit-numbers-uniqueness-check.patch
vfs-introduce-fmode_neg_offset-for-allowing-negative-f_pos.patch
vfs-clarify-that-nonseekable_open-will-never-fail.patch
vfs-use-kmalloc-to-allocate-fdmem-if-possible.patch
vfs-use-kmalloc-to-allocate-fdmem-if-possible-fix.patch
vfs-use-kmalloc-to-allocate-fdmem-if-possible-fix-2.patch
xtensa-convert-to-asm-generic-hardirqh.patch
xtensa-includecheck-fix-vectorss.patch
modpost-support-objects-with-more-than-64k-sections.patch
mm.patch
page-allocator-reduce-fragmentation-in-buddy-allocator-by-adding-buddies-that-are-merging-to-the-tail-of-the-free-lists.patch
sparsemem-on-no-vmemmap-path-put-mem_map-on-node-high-too.patch
shmem-remove-redundant-code.patch
define-madv_hugepage.patch
mm-remove-return-value-of-putback_lru_pages.patch
mempolicy-remove-redundant-code.patch
mempolicy-remove-case-mpol_interleave-from-policy_zonelist.patch
mempolicy-remove-redundant-check.patch
mempolicy-dont-call-mpol_set_nodemask-when-no_context.patch
mempolicy-lose-unnecessary-loop-variable-in-mpol_parse_str.patch
mempolicy-rename-policy_types-and-cleanup-initialization.patch
mempolicy-factor-mpol_shared_policy_init-return-paths.patch
mempolicy-document-cpuset-interaction-with-tmpfs-mpol-mount-option.patch
mempolicy-restructure-rebinding-mempolicy-functions.patch
cpusetmm-fix-no-node-to-alloc-memory-when-changing-cpusets-mems.patch
cpusetmm-fix-no-node-to-alloc-memory-when-changing-cpusets-mems-fix2.patch
cpusetmm-fix-no-node-to-alloc-memory-when-changing-cpusets-mems-spelling.patch
mincore-cleanups.patch
mincore-break-do_mincore-into-logical-pieces.patch
mincore-pass-ranges-as-startend-address-pairs.patch
mincore-do-nested-page-table-walks.patch
pagemap-add-ifdefs-config_hugetlb_page-on-code-walking-hugetlb-vma.patch
mm-default-to-node-zonelist-ordering-when-nodes-have-only-lowmem.patch
mmmigration-take-a-reference-to-the-anon_vma-before-migrating.patch
mmmigration-share-the-anon_vma-ref-counts-between-ksm-and-page-migration.patch
mmmigration-do-not-try-to-migrate-unmapped-anonymous-pages.patch
mmmigration-allow-the-migration-of-pageswapcache-pages.patch
mm-allow-config_migration-to-be-set-without-config_numa-or-memory-hot-remove.patch
mmmigration-avoid-race-between-shift_arg_pages-and-rmap_walk-during-migration-by-not-migrating-temporary-stacks.patch
mm-export-unusable-free-space-index-via-debugfs.patch
mm-export-fragmentation-index-via-debugfs.patch
mm-move-definition-for-lru-isolation-modes-to-a-header.patch
mmcompaction-memory-compaction-core.patch
mmcompaction-memory-compaction-core-do-not-schedule-work-on-other-cpus-for-compaction.patch
mmcompaction-add-proc-trigger-for-memory-compaction.patch
mmcompaction-add-sys-trigger-for-per-node-memory-compaction.patch
mmcompaction-direct-compact-when-a-high-order-allocation-fails.patch
mmcompaction-direct-compact-when-a-high-order-allocation-fails-fix.patch
mmcompaction-add-a-tunable-that-decides-when-memory-should-be-compacted-and-when-it-should-be-reclaimed.patch
mmcompaction-defer-compaction-using-an-exponential-backoff-when-compaction-fails.patch
mm-consider-the-entire-user-address-space-during-node-migration.patch
mm-revalidate-anon_vma-in-page_lock_anon_vma.patch
vmscan-prevent-get_scan_ratio-rounding-errors.patch
readaheadc-fix-comment.patch
vmscan-page_check_references-check-low-order-lumpy-reclaim-properly.patch
vmscan-page_check_references-check-low-order-lumpy-reclaim-properly-update.patch
buffer_head-remove-redundant-test-from-wait_on_buffer.patch
buffer_head-remove-redundant-test-from-wait_on_buffer-fix.patch
wait_on_buffer-remove-the-buffer_locked-test.patch
mm-introduce-free_pages_prepare.patch
mm-introduce-free_pages_prepare-fix.patch
fs-writeback-check-sync-bit-earlier-in-inode_wait_for_writeback.patch
mm-document-follow_page.patch
vmscan-remove-all_unreclaimable-scan-control.patch
vmscan-remove-isolate_pages-callback-scan-control.patch
cpu-mem-hotplug-enable-cpus-online-before-local-memory-online.patch
cpu-mem-hotplug-enable-cpus-online-before-local-memory-online-fix.patch
cpu-mem-hotplug-enable-cpus-online-before-local-memory-online-checkpatch-fixes.patch
ummunotify-userspace-support-for-mmu-notifications-v2.patch
include-linux-gfph-spelling-fixes.patch
include-linux-gfph-fix-coding-style.patch
highmem-remove-unneeded-ifdef-config_trace_irqflags_support-for-debug_kmap_atomic.patch
mm-fix-nr_section_roots-==-0-when-using-using-sparsemem-extreme.patch
mem-hotplug-separate-setup_per_cpu_pageset-into-separate-functions.patch
mem-hotplug-avoid-multiple-zones-sharing-same-boot-strapping-boot_pageset.patch
mem-hotplug-avoid-multiple-zones-sharing-same-boot-strapping-boot_pageset-fix.patch
mem-hotplug-fix-potential-race-while-building-zonelist-for-new-populated-zone.patch
frv-extend-gdbstub-to-support-more-features-of-gdb.patch
frv-extend-gdbstub-to-support-more-features-of-gdb-fix.patch
frv-duplicate-output_buffer-of-e03.patch
frv-duplicate-output_buffer-of-e03-checkpatch-fixes.patch
nommu-allow-private-mappings-of-read-only-devices.patch
alpha-add-performance-monitor-interrupt-counter.patch
alpha-add-wrperfmonh-header-file-to-aid-use-of-wrperfmon-palcall.patch
alpha-implement-hw-performance-events-on-the-ev67-and-later-cpus.patch
mn10300-use-generic-atomich.patch
cpuidle-add-a-repeating-pattern-detector-to-the-menu-governor.patch
errh-add-__must_check-to-error-pointer-handlers.patch
endian-define-__byte_order.patch
hangcheck-timer-fix-x86_32-bugs.patch
kernel-wide-replace-ushort_max-short_max-and-short_min-with-ushrt_max-shrt_max-and-shrt_min.patch
kernel-wide-replace-ushort_max-short_max-and-short_min-with-ushrt_max-shrt_max-and-shrt_min-fix.patch
kernel-wide-replace-ushort_max-short_max-and-short_min-with-ushrt_max-shrt_max-and-shrt_min-fix-fix.patch
hvsi-messed-up-error-checking-getting-state-name.patch
sunrpc-use-formatting-of-module-name-in-sunrpc.patch
ntfs-clean-up-ntfs_attr_extend_initialized.patch
ntfs-use-add_to_page_cache_lru.patch
kernelh-add-pr_warn-for-symmetry-to-dev_warn-netdev_warn.patch
asm-generic-dont-warn-that-atomic_t-is-only-24-bit.patch
include-asm-generic-kmap_typesh-remove-km_sync_icache-and-km_sync_dcache.patch
include-asm-generic-kmap_typesh-add-helpful-reminder.patch
drivers-misc-pass-miscdevice-pointer-via-file-private-data.patch
printk_ratelimited-fix-uninitialized-spinlock.patch
ratelimit-add-ratelimit_state_init.patch
fatfs-ratelimit-corruption-report.patch
improve-sys_personality-for-compat-architectures.patch
ad525x_dpot-simplify-duplicated-sysfs-defines.patch
ad525x_dpot-extend-write-argument-to-16bits.patch
ad525x_dpot-add-support-for-spi-parts.patch
ad525x_dpot-add-support-for-spi-parts-fix-ad525x_dpot-build.patch
ad525x_dpot-add-support-for-ad524x-pots.patch
ad525x_dpot-add-support-for-adn2860-and-ad528x-pots.patch
ad525x_dpot-add-support-for-one-time-programmable-pots.patch
vsprintfc-use-noinline_for_stack.patch
scripts-get_maintainerpl-optionally-ignore-non-maintainer-signatures.patch
scripts-get_maintainerpl-add-get_maintainerconf-default-options-file.patch
scripts-get_maintainerpl-default-to-not-include-unspecified-tags.patch
dynamic_debug-small-cleanup-in-ddebug_proc_write.patch
dynamic_debug-fix-documentation-errors.patch
dynamic_debug-fix-documentation-errors-checkpatch-fixes.patch
lib-hexdumpc-reduce-stack-variable-size-and-cleanups.patch
lib-introduce-common-method-to-convert-hex-digits.patch
lib-introduce-common-method-to-convert-hex-digits-fix.patch
lib-introduce-common-method-to-convert-hex-digits-fix-fix.patch
drivers-isdn-use-new-hex_to_bin-method.patch
usb-atm-speedtch-use-new-hex_to_bin-method.patch
sysctl-dont-use-own-implementation-of-hex_to_bin.patch
staging-rt2860-use-new-hex_to_bin-method.patch
fs-ldm-dont-use-own-implementation-of-hex_to_bin.patch
drivers-wireless-use-new-hex_to_bin-method.patch
drivers-acpi-dont-use-own-implementation-of-hex_to_bin.patch
davinci-mmc-pass-number-of-sg-segments-as-platform-data.patch
mmc-omap-add-support-for-16-bit-and-32-bit-registers.patch
sdhci-implement-cap_clock_base_broken-quirk.patch
sdhci-pltfm-implement-platform-data-passing.patch
sdhci-pltfm-implement-platform-data-passing-fix.patch
sdhci-pltfm-do-not-print-errors-in-case-of-an-extended-iomem-size.patch
davinci-mmc-add-a-function-to-control-reset-state-of-the-controller.patch
davinci-mmc-updates-to-suspend-resume-implementation.patch
davinci-mmc-updates-to-suspend-resume-implementation-checkpatch-fixes.patch
mmc-sd-clean-up-redundant-memset.patch
mmc-atmel-mci-enable-sd-high-speed-support.patch
mmc-add-support-mmcif-for-superh.patch
mmc-atmel-mci-add-support-for-sdio-interrupts.patch
mmc-sdhci_int_data_mask-typo-error.patch
sdhci-rename-sdhci-i-o-accessor-functions.patch
s3c6410-add-new-quirk-in-sdhci-driver-and-update-adma-descriptor-build.patch
s3c6410-enable-adma-feature-in-6410-sdhci-controller.patch
sdhci-enable-multiblock-transfers-in-sdhci-s3c.patch
omap_hsmmc-improve-interrupt-synchronisation.patch
mmc-omap-hs-mmc-convert-to-dev_pm_ops.patch
sh-define-dma-slaves-per-cpu-type-remove-now-redundant-header.patch
sh-add-dma-slaves-for-two-sdhi-controllers-to-sh7722.patch
sh-add-dma-slave-definitions-to-sh7724.patch
mmc-prepare-tmio_mmc-for-passing-of-dma-configuration-from-the-mfd-cell.patch
sh-prepare-the-sdhi-mfd-driver-to-pass-dma-configuration-to-tmio_mmcc.patch
mmc-add-dma-support-to-tmio_mmc-driver-when-used-on-superh.patch
sh-add-sdhi-dma-support-to-ecovec.patch
sh-add-sdhi-dma-support-to-ms7724se.patch
sh-add-sdhi-dma-support-to-kfr2r09.patch
sh-add-sdhi-dma-support-to-migor.patch
arm-add-dma-support-to-sh7372-enable-dma-for-sdhi.patch
mmc-drop-the-state-argument-to-mmc_suspend_host.patch
sdio-add-new-function-for-raw-read-after-write-operation.patch
sdhci-spear-st-spear-based-sdhci-controller-glue.patch
checkpatch-add-check-for-too-short-kconfig-descriptions.patch
checkpatch-add-check-for-too-short-kconfig-descriptions-checkpatch-fixes.patch
crc32-major-optimization.patch
crc32-major-optimization-checkpatch-fixes.patch
crc32-use-__byte_order-macro-for-endian-detection.patch
lis3-add-missing-constants-for-8bit-device.patch
lis3-separate-configuration-function-for-8-bit-device.patch
lis3-introduce-platform-data-for-second-ff-wu-unit.patch
lis3-add-skeletons-for-interrupt-handlers.patch
lis3-interrupt-handlers-for-8bit-wakeup-and-click-events.patch
lis3-setup-poll-interval-limits.patch
hwmon-add-ti-ads7871-a-d-converter-driver.patch
hwmon-add-ti-ads7871-a-d-converter-driver-checkpatch-fixes.patch
drivers-hwmon-coretempc-detect-the-thermal-sensors-by-cpuid.patch
drivers-hwmon-coretempc-get-tjmax-value-from-msr.patch
xen-fix-build-when-sysrq-is-disabled.patch
smbfs-remove-duplicated-include.patch
s3c-rtc-driver-add-support-for-s3c64xx.patch
rtc-mxc-remove-unnecessary-clock-source-for-rtc-subsystem.patch
rtc-isl1208-use-sysfs_create-remove_group.patch
rtc-ds1302-add-some-abstraction-for-new-platform-support.patch
gpio-add-interrupt-handling-capability-to-max732x.patch
gpiolib-make-names-array-and-its-values-const.patch
gpiolib-make-names-array-and-its-values-const-fix.patch
gpiolib-a-gpio-is-unsigned-so-use-%u-to-print-it.patch
gpiolib-document-that-names-can-contain-printk-format-specifiers.patch
pl061-fix-offset-value-range-checking.patch
max732x-correct-nr_port-checking-off-by-one-error.patch
gpio-max732x-fix-input-configuration-for-open-drain-pins.patch
gpiolib-make-gpiochip_add-show-a-better-error-message.patch
fbdev-bfin-lq035q1-fb-respect-new-ppi-mode-platform-field.patch
sis-strcpy-=-strlcpy.patch
fbdev-section-cleanup-in-arcfb.patch
fbdev-section-cleanup-in-hgafb.patch
fbdev-section-cleanup-in-vfb.patch
fbdev-section-cleanup-in-vga16fb.patch
fbdev-section-cleanup-in-w100fb.patch
da8xx-omap-l1xx-fb-implement-double-buffering.patch
fbdev-move-fbio_waitforvsync-to-linux-fbh.patch
fbdev-move-fbio_waitforvsync-to-linux-fbh-update.patch
hitfb-correct-sections.patch
s3c2410fb-correct-sections.patch
sgivwfb-correct-sections.patch
s3c-fb-add-s5pv210-support-and-some-features.patch
s3c-fb-add-s5pv210-support-and-some-features-checkpatch-fixes.patch
fb_defio-fix-for-non-dirty-ptes.patch
auxdisplay-section-cleanup-in-cfag12864bfb-driver.patch
ext3-fixup-rb_root-initializations-to-use-rb_root.patch
hfsplus-identify-journal-info-block-in-volume-header.patch
hfsplus-fix-journal-detection.patch
ufs-permit-mounting-of-borderware-filesystems.patch
documentation-submittingdrivers-resources.patch
memcg-oom-wakeup-filter.patch
memcg-oom-wakeup-filter-update.patch
memcg-oom-notifier.patch
memcg-oom-notifier-update.patch
memcg-oom-kill-disable-and-oom-status.patch
memcg-oom-kill-disable-and-oom-status-update.patch
memcg-oom-kill-disable-and-oom-status-update-checkpatch-fixes.patch
memcg-clean-up-move-charge.patch
memcg-move-charge-of-file-pages.patch
memcg-move-charge-of-file-pages-fix.patch
memcg-move-charge-of-file-pages-fix-2.patch
memcg-move-charge-of-file-pages-fix-3.patch
memcg-move-charge-of-file-pages-fix-4.patch
memcg-update-documentation-v8.patch
memcg-make-oom-killer-a-no-op-when-no-killable-task-can-be-found.patch
mm-remove-unnecessary-use-of-atomic.patch
mm-memcontrol-uninitialised-return-value.patch
memcg-fix-mis-accounting-of-file-mapped-racy-with-migration.patch
cgroups-make-cftypeunregister_event-void-returning.patch
cpusets-new-round-robin-rotor-for-slab-allocations.patch
cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node.patch
cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node-fix.patch
cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node-fix-2.patch
kmod-add-init-function-to-usermodehelper.patch
exec-replace-call_usermodehelper_pipe-with-use-of-umh-init-function-and-resolve-limit.patch
umh-creds-convert-call_usermodehelper_keys-to-use-subprocess_info-init.patch
umh-creds-kill-subprocess_info-cred-logic.patch
call_usermodehelper-no-need-to-unblock-signals.patch
wait_for_helper-sigchld-from-user-space-can-lead-to-use-after-free.patch
call_usermodehelper-simplify-fix-umh_no_wait-case.patch
call_usermodehelper-umh_wait_exec-ignores-kernel_thread-failure.patch
coredump-factor-out-the-not-ispipe-file-checks.patch
coredump-cleanup-ispipe-code.patch
coredump-factor-out-put_cred-calls.patch
coredump-shift-down_writemmap_sem-into-coredump_wait.patch
exit-exit_notify-can-trust-signal-notify_count-0.patch
exit-change-zap_other_threads-to-count-sub-threads.patch
exit-avoid-sig-count-in-de_thread-__exit_signal-synchronization.patch
exit-avoid-sig-count-in-__exit_signal-to-detect-the-group-dead-case.patch
posix-cpu-timers-avoid-task-signal-=-null-checks.patch
ia64-ptrace_attach_sync_user_rbs-avoid-task-signal-=-null-checks.patch
fork-exit-move-tty_kref_put-outside-of-__cleanup_signal.patch
signals-make-task_struct-signal-immutable-refcountable.patch
signals-clear-signal-tty-when-the-last-thread-exits.patch
signals-clear-signal-tty-when-the-last-thread-exits-fix.patch
signals-kill-the-awful-task_rq_unlock_wait-hack.patch
exit-__exit_signal-use-thread_group_leader-consistently.patch
kill-the-obsolete-thread_group_cputime_free-and-taskstats_tgid_init-helpers.patch
exit-move-taskstats_tgid_free-from-__exit_signal-to-free_signal_struct.patch
check_unshare_flags-kill-the-bogus-clone_sighand-sig-count-check.patch
proc-get_nr_threads-doesnt-need-siglock-any-longer.patch
proc_sched_show_task-use-get_nr_threads.patch
keyctl_session_to_parent-use-thread_group_empty-to-check-singlethreadness.patch
proc-turn-signal_struct-count-into-int-nr_threads.patch
proc-turn-signal_struct-count-into-int-nr_threads-checkpatch-fixes.patch
proc-cleanup-remove-unused-assignments.patch
proc-remove-obsolete-comments.patch
cpu-hotplug-introduce-cpu_notify-__cpu_notify-cpu_notify_nofail.patch
cpu-hotplug-return-better-errno-on-cpu-hotplug-failure.patch
notifier-change-notifier_from_errno0-to-return-notify_ok.patch
x86-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
topology-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
kernel-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
slab-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
iucv-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
ehca-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
s390-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
md-convert-cpu-notifier-to-return-encapsulate-errno-value.patch
fault-injection-add-cpu-notifier-error-injection-module.patch
fault-injection-add-cpu-notifier-error-injection-module-fix.patch
cpuhotplug-do-not-need-cpu_hotplug_begin-when-config_hotplug_cpu=n.patch
idr-fix-backtrack-logic-in-idr_remove_all.patch
ipc-semc-optimize-update_queue-for-bulk-wakeup-calls.patch
ipc-semc-optimize-update_queue-for-bulk-wakeup-calls-fix.patch
ipc-semc-move-wake_up_process-out-of-the-spinlock-section.patch
ipc-semc-move-wake_up_process-out-of-the-spinlock-section-fix.patch
ipc-semc-move-wake_up_process-out-of-the-spinlock-section-fix-2.patch
ipc-semc-move-wake_up_process-out-of-the-spinlock-section-bugfix-for-incorrect-setting-of-sem_otime.patch
ipc-semc-cacheline-align-the-ipc-spinlock-for-semaphores.patch
ipc-semc-update-description-of-the-implementation.patch
ipmi-change-addr_source-to-an-enum-rather-than-strings.patch
ipmi-split-device-discovery-and-registration.patch
ipmi-split-device-discovery-and-registration-fix-mutex-use.patch
ipmi-only-register-one-si-per-bmc.patch
ipmi-change-device-discovery-order.patch
ipmi-reduce-polling-when-interrupts-are-available.patch
ipmi-reduce-polling.patch
ipmi-attempt-to-register-multiple-sis-of-the-same-type.patch
ipmi-change-timeout-and-event-poll-to-one-second.patch
ipmi-convert-tracking-of-the-acpi-device-pointer-to-a-pnp-device.patch
ipmi-update-driver-to-use-dev_printk-and-its-constructs.patch
ipmi-update-driver-to-use-dev_printk-and-its-constructs-checkpatch-fixes.patch
char-drivers-ram-oops-panic-logger.patch
char-drivers-ram-oops-panic-logger-update.patch
drivers-char-ppdevc-use-kasprintf.patch
rapidio-add-idt-cps-tsi-switches.patch
rapidio-add-switch-locking-during-discovery.patch
rapidio-add-port-write-handling-for-em.patch
rapidio-powerpc-85xx-add-port-write-message-handler-for-srio-port.patch
rapidio-powerpc-85xx-add-mchk-handler-for-srio-port.patch
rapidio-add-enabling-srio-port-rx-and-tx.patch
rapidio-fix-typos-and-minor-edits.patch
rapidio-add-debug-configuration-option.patch
rapidio-modify-initialization-of-switch-operations.patch
rapidio-add-switch-domain-routines.patch
rapidio-use-default-route-value-for-cps-switches.patch
pids-increase-pid_max-based-on-num_possible_cpus.patch
pids-increase-pid_max-based-on-num_possible_cpus-fix.patch
init_task-should-initialize-thread_group-list.patch
pids-init_struct_pidtasks-should-never-see-the-swapper-process.patch
pids-fix-fork_idle-to-setup-pids-correctly.patch
init_sighand-use-sig_dfl-instead-of-null.patch
delay-accounting-re-implement-c-for-getdelaysc-to-report-information-on-a-target-command.patch
delay-accounting-re-implement-c-for-getdelaysc-to-report-information-on-a-target-command-checkpatch-fixes.patch
delayacct-align-to-8-byte-boundary-on-64-bit-systems.patch
lib-random32-export-pseudo-random-number-generator-for-modules.patch
drivers-edac-convert-logging-messages-direct-uses-of-__file__-to-%s-__file.patch
drivers-edac-convert-logging-messages-direct-uses-of-__file__-to-%s-__file-checkpatch-fixes.patch
ia64-remove-unnecessary-sync_single_range_-in-swiotlb_dma_ops.patch
x86-remove-unnecessary-sync_single_range_-in-swiotlb_dma_ops.patch
powerpc-remove-unnecessary-sync_single_range_-in-swiotlb_dma_ops.patch
swiotlb-remove-unnecessary-swiotlb_sync_single_range_.patch
dma-mapping-remove-unnecessary-sync_single_range_-in-dma_map_ops.patch
documentation-add-networking-drivers-mapping-error-handling-to-dma-api-howto.patch
staging-saa7134-go7007-replace-dma_sync_single-with-dma_sync_single_for_cpu.patch
dma-mapping-remove-deprecated-dma_sync_single-and-dma_sync_sg-api.patch
documentation-add-scsi-drivers-mapping-error-handling-to-dma-api-howto.patch
documentation-update-scatterlist-struct-description-in-dma-api-howto.patch
documentation-move-the-error-handling-to-the-better-place-in-dma-api-howto.patch
ssb-add-dma_dev-to-ssb_device-structure.patch
b43legacy-replace-the-ssb_dma-api-with-the-generic-dma-api.patch
b43-replace-the-ssb_dma-api-with-the-generic-dma-api.patch
b44-replace-the-ssb_dma-api-with-the-generic-dma-api.patch
ssb-remove-the-ssb-dma-api.patch
panic-allow-taint-flag-for-warnings-to-be-changed-from-taint_warn.patch
panic-allow-taint-flag-for-warnings-to-be-changed-from-taint_warn-checkpatch-fixes.patch
panic-add-taint-flag-taint_firmware_workaround-i.patch
pci-dmar-combine-the-bios-dmar-table-warning-messages.patch
pci-dmar-tone-down-warnings-about-invalid-bios-dmar-tables.patch
panic-call-console_verbose-in-panic.patch
compat-factor-out-compat_rw_copy_check_uvector-from-compat_do_readv_writev.patch
aio-fix-the-compat-vectored-operations.patch
aio-fix-the-compat-vectored-operations-checkpatch-fixes.patch
aio-fix-the-compat-vectored-operations-fix.patch
kfifo-kfifo_is_fullempty-should-return-bools-not-ints.patch
kfifo-fix-kfifo-miss-use-of-nozamic.patch
kfifo-add-the-new-generic-kfifo-api.patch
kfifo-replace-the-old-non-generic-api.patch
kfifo-add-example-files-to-the-kernel-sample-directory.patch
kfifo-add-example-files-to-the-kernel-sample-directory-checkpatch-fixes.patch
radix-tree-fix-radix_tree_prev_hole-underflow-case.patch
initramfs-add-support-for-in-kernel-initramfs-compressed-with-lzo.patch
lktdm-bring-support-for-hardlockup-softlockup-and-hung-task-crashes.patch
time-kill-off-config_generic_time.patch
asm-generic-remove-isa_dma_threshold-in-scatterlisth.patch
asm-generic-add-need_sg_dma_length-to-define-sg_dma_len.patch
x86_32-use-asm-generic-scatterlisth.patch
powerpc-use-asm-generic-scatterlisth.patch
alpha-use-asm-generic-scatterlisth.patch
asm-generic-remove-arch_has_sg_chain-in-scatterlisth.patch
avr32-use-asm-generic-scatterlisth.patch
cris-use-asm-generic-scatterlisth.patch
h8300-use-asm-generic-scatterlisth.patch
m32r-use-use-asm-generic-scatterlisth.patch
m68k-use-asm-generic-scatterlisth.patch
mips-use-use-asm-generic-scatterlisth.patch
xtensa-use-use-asm-generic-scatterlisth.patch
blackfin-use-use-asm-generic-scatterlisth.patch
frv-use-asm-generic-scatterlisth.patch
mn10300-use-asm-generic-scatterlisth.patch
parisc-use-asm-generic-scatterlisth.patch
osst-update-ppos-instead-of-using-file-f_pos.patch
arch-cris-arch-v10-drivers-eepromc-eeprom_read-eeprom_write-should-update-ppos-instead-of-file-f_pos.patch
frv-remove-struct-file-argument-from-sysctl-proc_handler.patch
misdn-remove-unnecessary-test-on-f_pos.patch
rtc-m41t80-use-nonseekable_open.patch
vfs-introduce-noop_llseek.patch
osst-use-noop_llseek-instead-of-default_llseek.patch
st-use-noop_llseek-instead-of-default_llseek.patch
fs-do-not-fallback-to-default_llseek-when-readdir-uses-bkl.patch
documentation-filesystems-locking-update-documentation-on-llseek-wrt-bkl.patch
numa-add-generic-percpu-var-numa_node_id-implementation.patch
numa-add-generic-percpu-var-numa_node_id-implementation-fix1.patch
numa-add-generic-percpu-var-numa_node_id-implementation-fix2.patch
numa-x86_64-use-generic-percpu-var-numa_node_id-implementation.patch
numa-x86_64-use-generic-percpu-var-numa_node_id-implementation-fix1.patch
numa-x86_64-use-generic-percpu-var-numa_node_id-implementation-fix2.patch
numa-ia64-use-generic-percpu-var-numa_node_id-implementation.patch
numa-introduce-numa_mem_id-effective-local-memory-node-id.patch
numa-introduce-numa_mem_id-effective-local-memory-node-id-fix.patch
numa-introduce-numa_mem_id-effective-local-memory-node-id-fix2.patch
numa-introduce-numa_mem_id-effective-local-memory-node-id-fix3.patch
numa-ia64-support-numa_mem_id-for-memoryless-nodes.patch
numa-slab-use-numa_mem_id-for-slab-local-memory-node.patch
numa-in-kernel-profiling-use-cpu_to_mem-for-per-cpu-allocations.patch
numa-update-documentation-vm-numa-add-memoryless-node-info.patch
numa-update-documentation-vm-numa-add-memoryless-node-info-fix1.patch
vfs-add-super-operation-writeback_inodes.patch
vfs-take-2add-set_page_dirty_notag.patch
reiser4-export-remove_from_page_cache.patch
reiser4-export-remove_from_page_cache-fix.patch
reiser4-export-find_get_pages.patch
reiser4.patch
reiser4-writeback_inodes-implementation.patch
reiser4-writeback_inodes-implementation-fix.patch
reiser4-fixup-checkin-checkout-jnodes-for-entd.patch
reiser4-fixups.patch
reiser4-broke.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
getblk-handle-2tb-devices.patch
getblk-handle-2tb-devices-fix.patch

Re: mmotm 2010-05-19 BUG weirdness...

[Andrew Morton]

On Thu, 20 May 2010 11:47:50 -0400 Valdis.Kletnieks@vt.edu wrote:

> On Wed, 19 May 2010 16:13:09 PDT, akpm@linux-foundation.org said:
> > The mm-of-the-moment snapshot 2010-05-19-16-12 has been uploaded to
> > 
> >    http://userweb.kernel.org/~akpm/mmotm/
> 
> So I'm looking closer at the BUG I just posted

I can't see that BUG report on lkml or in inbox.

> - I had deleted two further
> BUGs because they were obviously follow-ons to the original.  But then...
> 
> Note the following 2 lines:
> 
> [   35.357018] note: keymap[2481] exited with preempt_count 1
> [   35.360503] BUG: scheduling while atomic: keymap/2481/0x10000002
> 
> The kernel reports the instigating process exited - and then reports it as
> the offender for a "scheduling while atomic". Insufficient attempted cleanup
> after the first BUG?  Do we care because this is a sign of a scheduler bug
> that could trip on a non-BUG as well, or is it "all bets are off" because of
> the first BUG?

Yes, the oops code will end up calling do_exit() to get rid of this
process and to try to keep the machine limping along.  So if you hit an
oops with (say) a spinlock held, the task will end up calling do_exit()
with a non-zero preempt_count.

So the only problem I'm seeing here is .... Dmitry's ;)

> [   35.294528] BUG: unable to handle kernel NULL pointer dereference at (null)
> [   35.295005] IP: [<(null)>] (null)
> [   35.296935] PGD 11da3c067 PUD 11d4ad067 PMD 0 
> [   35.296935] Oops: 0010 [#1] PREEMPT SMP 
> [   35.299667] last sysfs file: /sys/devices/pci0000:00/0000:00:1a.7/usb1/idVendor
> [   35.300328] CPU 0 
> [   35.300328] Modules linked in:
> [   35.300328] 
> [   35.300328] Pid: 2481, comm: keymap Not tainted 2.6.34-mmotm0519 #1 0X564R/Latitude E6500                  
> [   35.300328] RIP: 0010:[<0000000000000000>]  [<(null)>] (null)
> [   35.300328] RSP: 0018:ffff88011d4d5cb0  EFLAGS: 00010046
> [   35.310163] RAX: 0000000000000000 RBX: ffff88011c03e000 RCX: 0000000000000081
> [   35.310163] RDX: ffff88011d4d5cc4 RSI: ffff88011d4d5cc8 RDI: ffff88011c03e000
> [   35.310163] RBP: ffff88011d4d5d28 R08: ffff88011e9b28e8 R09: 0000000000000001
> [   35.310163] R10: ffffffff81e0b160 R11: 0000000000000004 R12: 00000000000000a4
> [   35.310163] R13: ffff88011c03e830 R14: 0000000000000286 R15: ffff88011d4d5cc8
> [   35.310163] FS:  00007f4b86283700(0000) GS:ffff880002600000(0000) knlGS:0000000000000000
> [   35.319397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [   35.319397] CR2: 0000000000000000 CR3: 000000011d575000 CR4: 00000000000406f0
> [   35.319397] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [   35.319397] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [   35.319397] Process keymap (pid: 2481, threadinfo ffff88011d4d4000, task ffff88011e9b28c0)
> [   35.319397] Stack:
> [   35.319397]  ffffffff813bf3d1 ffff88011d4d5cf8 0000008100000246 00000081000000a4
> [   35.319397] <0> 0000000000000004 0000000000000000 ffff88011d4d5cc4 ffff88011cf11200
> [   35.319397] <0> ffff88011c179000 ffff88011d4d5d28 0000000000000081 00007fff9ee21fa0
> [   35.319397] Call Trace:
> [   35.319397]  [<ffffffff813bf3d1>] ? input_set_keycode+0xad/0x12c
> [   35.319397]  [<ffffffff813c231d>] evdev_do_ioctl+0x22b/0x79b
> [   35.337913]  [<ffffffff815a4b04>] ? __mutex_lock_common+0x564/0x580
> [   35.337913]  [<ffffffff813c28ca>] ? evdev_ioctl_handler+0x3d/0x80
> [   35.341507]  [<ffffffff813c28ca>] ? evdev_ioctl_handler+0x3d/0x80
> [   35.341507]  [<ffffffff813c28f0>] evdev_ioctl_handler+0x63/0x80
> [   35.344034]  [<ffffffff813c292a>] evdev_ioctl+0xb/0xd
> [   35.344034]  [<ffffffff810ea6cd>] vfs_ioctl+0x2d/0xa1
> [   35.344034]  [<ffffffff810eac4c>] do_vfs_ioctl+0x494/0x4cd
> [   35.344034]  [<ffffffff810eacdc>] sys_ioctl+0x57/0x95
> [   35.344034]  [<ffffffff8100266b>] system_call_fastpath+0x16/0x1b
> [   35.344034] Code:  Bad RIP value.
> [   35.344034] RIP  [<(null)>] (null)
> [   35.344034]  RSP <ffff88011d4d5cb0>
> [   35.344034] CR2: 0000000000000000
> [   35.357018] ---[ end trace 394fa5aa8a77b6f3 ]---
> [   35.357018] note: keymap[2481] exited with preempt_count 1
> [   35.360503] BUG: scheduling while atomic: keymap/2481/0x10000002
> [   35.361774] INFO: lockdep is turned off.
> [   35.363106] Modules linked in:
> [   35.364442] Pid: 2481, comm: keymap Tainted: G      D     2.6.34-mmotm0519 #1
> [   35.365759] Call Trace:
> [   35.367082]  [<ffffffff810653af>] ? __debug_show_held_locks+0x1b/0x24
> [   35.368391]  [<ffffffff8102e742>] __schedule_bug+0x6d/0x72
> [   35.369716]  [<ffffffff815a34de>] schedule+0x10a/0x902
> [   35.371012]  [<ffffffff81030b30>] __cond_resched+0x13/0x1f
> [   35.372305]  [<ffffffff815a3dfa>] _cond_resched+0x16/0x1d
> [   35.373576]  [<ffffffff810c3f10>] unmap_vmas+0x7b7/0x828
> [   35.374850]  [<ffffffff810c922b>] exit_mmap+0x82/0xfd
> [   35.376093]  [<ffffffff81035ede>] mmput+0x43/0xcf
> [   35.377339]  [<ffffffff8103a23a>] exit_mm+0x11d/0x12a
> [   35.378564]  [<ffffffff8103c21e>] do_exit+0x2e1/0x932
> [   35.379792]  [<ffffffff810393cf>] ? kmsg_dump+0x136/0x150
> [   35.381014]  [<ffffffff815a78b5>] oops_end+0x89/0x8e
> [   35.382211]  [<ffffffff8101fc79>] no_context+0x1f7/0x206
> [   35.383384]  [<ffffffff8101fe0f>] __bad_area_nosemaphore+0x187/0x1c7
> [   35.384571]  [<ffffffff810674bf>] ? __lock_acquire+0xc58/0xd09
> [   35.385751]  [<ffffffff8101fe5d>] bad_area_nosemaphore+0xe/0x10
> [   35.386936]  [<ffffffff815a9433>] do_page_fault+0x1f3/0x44b
> [   35.388111]  [<ffffffff815a58f2>] ? trace_hardirqs_off_thunk+0x3a/0x3c
> [   35.389296]  [<ffffffff815a6cbf>] page_fault+0x1f/0x30
> [   35.390437]  [<ffffffff813bf3d1>] ? input_set_keycode+0xad/0x12c
> [   35.391534]  [<ffffffff813c231d>] evdev_do_ioctl+0x22b/0x79b
> [   35.392639]  [<ffffffff815a4b04>] ? __mutex_lock_common+0x564/0x580
> [   35.393722]  [<ffffffff813c28ca>] ? evdev_ioctl_handler+0x3d/0x80
> [   35.394747]  [<ffffffff813c28ca>] ? evdev_ioctl_handler+0x3d/0x80
> [   35.395748]  [<ffffffff813c28f0>] evdev_ioctl_handler+0x63/0x80
> [   35.396686]  [<ffffffff813c292a>] evdev_ioctl+0xb/0xd
> [   35.397627]  [<ffffffff810ea6cd>] vfs_ioctl+0x2d/0xa1
> [   35.398541]  [<ffffffff810eac4c>] do_vfs_ioctl+0x494/0x4cd
> [   35.399471]  [<ffffffff810eacdc>] sys_ioctl+0x57/0x95
> [   35.400387]  [<ffffffff8100266b>] system_call_fastpath+0x16/0x1b
> 

mmotm 2010-05-19 - Kconfig dependency list from hell...

[Valdis.Kletnieks]

[-- Attachment #1: Type: text/plain, Size: 3936 bytes --]

On Wed, 19 May 2010 16:13:09 PDT, akpm@linux-foundation.org said:
> The mm-of-the-moment snapshot 2010-05-19-16-12 has been uploaded to
> 
>    http://userweb.kernel.org/~akpm/mmotm/

Looks like some code to sort the dependency list and eliminate duplicates is
called for. I hit '?' on a new prompt, and saw this:

CONFIG_COMEDI_FC:

Enable support for shared functions for low-level drivers.
This module is not used directly by end-users. Rather, it
is used by many other comedi drivers.

To compile this driver as a module, choose M here: the module will be
called comedi_fc.

Symbol: COMEDI_FC [=n]
Prompt: Comedi shared functions for low-level driver support
  Defined at drivers/staging/comedi/Kconfig:1294
  Depends on: STAGING [=y] && !STAGING_EXCLUDE_BUILD [=n]
  Location:
    -> Device Drivers
      -> Staging drivers (STAGING [=y])
        -> Exclude Staging drivers from being built (STAGING_EXCLUDE_BUILD [=n])

  Selected by: COMEDI_TEST [=n] && STAGING [=y] && !STAGING_EXCLUDE_BUILD [=n]
&& COMEDI_MISC_DRIVERS [=n] || COMEDI_DAS16M1 [=n] && STAGING [=y] &&
!STAGING_EXCLUDE_BUILD [=n] && COMEDI_ISA_DRIVERS [=n] && ISA [=n] ||
COMEDI_DAS16 [=n] && STAGING [=y] && !STAGING_EXCLUDE_BUILD [=n] &&
COMEDI_ISA_DRIVERS [=n] && ISA [=n] || COMEDI_DAS800 [=n] && STAGING [=y] &&
!STAGING_EXCLUDE_BUILD [=n] && COMEDI_ISA_DRIVERS [=n] && ISA [=n] ||
COMEDI_DAS1800 [=n] && STAGING [=y] && !STAGING_EXCLUDE_BUILD [=n] &&
COMEDI_ISA_DRIVERS [=n] && ISA [=n] || COMEDI_DT282X [=n] && STAGING [=y] &&
!STAGING_EXCLUDE_BUILD [=n] && COMEDI_ISA_DRIVERS [=n] && ISA [=n] ||
COMEDI_ADDI_APCI_3001 [=n] && STAGING [=y] && !STAGING_EXCLUDE_BUILD [=n] &&
COMEDI_PCI_DRIVERS [=n] && PCI [=y] || COMEDI_ADDI_APCI_3120 [=n] && STAGING
[=y] && !STAGING_EXCLUDE_BUILD [=n] && COMEDI_PCI_DRIVERS [=n] && PCI [=y] ||
COMEDI_ADL_PCI9111 [=n] && STAGING [=y] && !STAGING_EXCLUDE_BUILD [=n] &&
COMEDI_PCI_DRIVERS [=n] && PCI [=y] || COMEDI_ADL_PCI9118 [=n] && STAGING [=y]
&& !STAGING_EXCLUDE_BUILD [=n] && COMEDI_PCI_DRIVERS [=n] && PCI [=y] ||
COMEDI_AMPLC_PCI224 [=n] && STAGING [=y] && !STAGING_EXCLUDE_BUILD [=n] &&
COMEDI_PCI_DRIVERS [=n] && PCI [=y] || COMEDI_GSC_HPDI [=n] && STAGING [=y] &&
!STAGING_EXCLUDE_BUILD [=n] && COMEDI_PCI_DRIVERS [=n] && PCI [=y] ||
COMEDI_CB_PCIDAS64 [=n] && STAGING [=y] && !STAGING_EXCLUDE_BUILD [=n] &&
COMEDI_PCI_DRIVERS [=n] && PCI [=y] || COMEDI_CB_PCIDAS [=n] && STAGING [=y] &&
!STAGING_EXCLUDE_BUILD [=n] && COMEDI_PCI_DRIVERS [=n] && PCI [=y] ||
COMEDI_S626 [=n] && STAGING [=y] && !STAGING_EXCLUDE_BUILD [=n] &&
COMEDI_PCI_DRIVERS [=n] && PCI [=y] || COMEDI_NI_MIO_CS [=n] && STAGING [=y] &&
!STAGING_EXCLUDE_BUILD [=n] && COMEDI_PCMCIA_DRIVERS [=n] && PCMCIA [=y] &&
COMEDI_NI_TIO [=n] && COMEDI_NI_COMMON [=n] || COMEDI_USBDUXFAST [=n] &&
STAGING [=y] && !STAGING_EXCLUDE_BUILD [=n] && COMEDI_USB_DRIVERS [=n] && USB
[=y] || COMEDI_NI_LABPC [=n] && STAGING [=y] && !STAGING_EXCLUDE_BUILD [=n] &&
COMEDI_NI_COMMON [=n]

(Last line wrapped for readability). That includes these dups:

     19  !STAGING_EXCLUDE_BUILD [=n]
     18  STAGING [=y]
      9  COMEDI_PCI_DRIVERS [=n]
      5  COMEDI_ISA_DRIVERS [=n]

It would probably be harder to reduce these:

      1  PCI [=y] || COMEDI_S626 [=n] 
      1  PCI [=y] || COMEDI_NI_MIO_CS [=n] 
      1  PCI [=y] || COMEDI_GSC_HPDI [=n] 
      1  PCI [=y] || COMEDI_CB_PCIDAS64 [=n] 
      1  PCI [=y] || COMEDI_CB_PCIDAS [=n] 
      1  PCI [=y] || COMEDI_AMPLC_PCI224 [=n] 
      1  PCI [=y] || COMEDI_ADL_PCI9118 [=n] 
      1  PCI [=y] || COMEDI_ADL_PCI9111 [=n] 
      1  PCI [=y] || COMEDI_ADDI_APCI_3120 [=n] 
      1  ISA [=n] || COMEDI_DT282X [=n] 
      1  ISA [=n] || COMEDI_DAS800 [=n] 
      1  ISA [=n] || COMEDI_DAS1800 [=n] 
      1  ISA [=n] || COMEDI_DAS16 [=n] 
      1  ISA [=n] || COMEDI_ADDI_APCI_3001 [=n] 

(Is there a reason these don't print with () around them?  It looks like it
needs them to enforce proper semantics...)





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mmotm 2010-05-19 BUG weirdness...

[Valdis.Kletnieks]

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On Wed, 19 May 2010 16:13:09 PDT, akpm@linux-foundation.org said:
> The mm-of-the-moment snapshot 2010-05-19-16-12 has been uploaded to
> 
>    http://userweb.kernel.org/~akpm/mmotm/

So I'm looking closer at the BUG I just posted - I had deleted two further
BUGs because they were obviously follow-ons to the original.  But then...

Note the following 2 lines:

[   35.357018] note: keymap[2481] exited with preempt_count 1
[   35.360503] BUG: scheduling while atomic: keymap/2481/0x10000002

The kernel reports the instigating process exited - and then reports it as
the offender for a "scheduling while atomic". Insufficient attempted cleanup
after the first BUG?  Do we care because this is a sign of a scheduler bug
that could trip on a non-BUG as well, or is it "all bets are off" because of
the first BUG?

[   35.294528] BUG: unable to handle kernel NULL pointer dereference at (null)
[   35.295005] IP: [<(null)>] (null)
[   35.296935] PGD 11da3c067 PUD 11d4ad067 PMD 0 
[   35.296935] Oops: 0010 [#1] PREEMPT SMP 
[   35.299667] last sysfs file: /sys/devices/pci0000:00/0000:00:1a.7/usb1/idVendor
[   35.300328] CPU 0 
[   35.300328] Modules linked in:
[   35.300328] 
[   35.300328] Pid: 2481, comm: keymap Not tainted 2.6.34-mmotm0519 #1 0X564R/Latitude E6500                  
[   35.300328] RIP: 0010:[<0000000000000000>]  [<(null)>] (null)
[   35.300328] RSP: 0018:ffff88011d4d5cb0  EFLAGS: 00010046
[   35.310163] RAX: 0000000000000000 RBX: ffff88011c03e000 RCX: 0000000000000081
[   35.310163] RDX: ffff88011d4d5cc4 RSI: ffff88011d4d5cc8 RDI: ffff88011c03e000
[   35.310163] RBP: ffff88011d4d5d28 R08: ffff88011e9b28e8 R09: 0000000000000001
[   35.310163] R10: ffffffff81e0b160 R11: 0000000000000004 R12: 00000000000000a4
[   35.310163] R13: ffff88011c03e830 R14: 0000000000000286 R15: ffff88011d4d5cc8
[   35.310163] FS:  00007f4b86283700(0000) GS:ffff880002600000(0000) knlGS:0000000000000000
[   35.319397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.319397] CR2: 0000000000000000 CR3: 000000011d575000 CR4: 00000000000406f0
[   35.319397] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   35.319397] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[   35.319397] Process keymap (pid: 2481, threadinfo ffff88011d4d4000, task ffff88011e9b28c0)
[   35.319397] Stack:
[   35.319397]  ffffffff813bf3d1 ffff88011d4d5cf8 0000008100000246 00000081000000a4
[   35.319397] <0> 0000000000000004 0000000000000000 ffff88011d4d5cc4 ffff88011cf11200
[   35.319397] <0> ffff88011c179000 ffff88011d4d5d28 0000000000000081 00007fff9ee21fa0
[   35.319397] Call Trace:
[   35.319397]  [<ffffffff813bf3d1>] ? input_set_keycode+0xad/0x12c
[   35.319397]  [<ffffffff813c231d>] evdev_do_ioctl+0x22b/0x79b
[   35.337913]  [<ffffffff815a4b04>] ? __mutex_lock_common+0x564/0x580
[   35.337913]  [<ffffffff813c28ca>] ? evdev_ioctl_handler+0x3d/0x80
[   35.341507]  [<ffffffff813c28ca>] ? evdev_ioctl_handler+0x3d/0x80
[   35.341507]  [<ffffffff813c28f0>] evdev_ioctl_handler+0x63/0x80
[   35.344034]  [<ffffffff813c292a>] evdev_ioctl+0xb/0xd
[   35.344034]  [<ffffffff810ea6cd>] vfs_ioctl+0x2d/0xa1
[   35.344034]  [<ffffffff810eac4c>] do_vfs_ioctl+0x494/0x4cd
[   35.344034]  [<ffffffff810eacdc>] sys_ioctl+0x57/0x95
[   35.344034]  [<ffffffff8100266b>] system_call_fastpath+0x16/0x1b
[   35.344034] Code:  Bad RIP value.
[   35.344034] RIP  [<(null)>] (null)
[   35.344034]  RSP <ffff88011d4d5cb0>
[   35.344034] CR2: 0000000000000000
[   35.357018] ---[ end trace 394fa5aa8a77b6f3 ]---
[   35.357018] note: keymap[2481] exited with preempt_count 1
[   35.360503] BUG: scheduling while atomic: keymap/2481/0x10000002
[   35.361774] INFO: lockdep is turned off.
[   35.363106] Modules linked in:
[   35.364442] Pid: 2481, comm: keymap Tainted: G      D     2.6.34-mmotm0519 #1
[   35.365759] Call Trace:
[   35.367082]  [<ffffffff810653af>] ? __debug_show_held_locks+0x1b/0x24
[   35.368391]  [<ffffffff8102e742>] __schedule_bug+0x6d/0x72
[   35.369716]  [<ffffffff815a34de>] schedule+0x10a/0x902
[   35.371012]  [<ffffffff81030b30>] __cond_resched+0x13/0x1f
[   35.372305]  [<ffffffff815a3dfa>] _cond_resched+0x16/0x1d
[   35.373576]  [<ffffffff810c3f10>] unmap_vmas+0x7b7/0x828
[   35.374850]  [<ffffffff810c922b>] exit_mmap+0x82/0xfd
[   35.376093]  [<ffffffff81035ede>] mmput+0x43/0xcf
[   35.377339]  [<ffffffff8103a23a>] exit_mm+0x11d/0x12a
[   35.378564]  [<ffffffff8103c21e>] do_exit+0x2e1/0x932
[   35.379792]  [<ffffffff810393cf>] ? kmsg_dump+0x136/0x150
[   35.381014]  [<ffffffff815a78b5>] oops_end+0x89/0x8e
[   35.382211]  [<ffffffff8101fc79>] no_context+0x1f7/0x206
[   35.383384]  [<ffffffff8101fe0f>] __bad_area_nosemaphore+0x187/0x1c7
[   35.384571]  [<ffffffff810674bf>] ? __lock_acquire+0xc58/0xd09
[   35.385751]  [<ffffffff8101fe5d>] bad_area_nosemaphore+0xe/0x10
[   35.386936]  [<ffffffff815a9433>] do_page_fault+0x1f3/0x44b
[   35.388111]  [<ffffffff815a58f2>] ? trace_hardirqs_off_thunk+0x3a/0x3c
[   35.389296]  [<ffffffff815a6cbf>] page_fault+0x1f/0x30
[   35.390437]  [<ffffffff813bf3d1>] ? input_set_keycode+0xad/0x12c
[   35.391534]  [<ffffffff813c231d>] evdev_do_ioctl+0x22b/0x79b
[   35.392639]  [<ffffffff815a4b04>] ? __mutex_lock_common+0x564/0x580
[   35.393722]  [<ffffffff813c28ca>] ? evdev_ioctl_handler+0x3d/0x80
[   35.394747]  [<ffffffff813c28ca>] ? evdev_ioctl_handler+0x3d/0x80
[   35.395748]  [<ffffffff813c28f0>] evdev_ioctl_handler+0x63/0x80
[   35.396686]  [<ffffffff813c292a>] evdev_ioctl+0xb/0xd
[   35.397627]  [<ffffffff810ea6cd>] vfs_ioctl+0x2d/0xa1
[   35.398541]  [<ffffffff810eac4c>] do_vfs_ioctl+0x494/0x4cd
[   35.399471]  [<ffffffff810eacdc>] sys_ioctl+0x57/0x95
[   35.400387]  [<ffffffff8100266b>] system_call_fastpath+0x16/0x1b


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Re: mmotm 2010-05-19 BUG weirdness...

[Dmitry Torokhov]

On Thursday 20 May 2010 05:55:20 am Andrew Morton wrote:
> On Thu, 20 May 2010 11:47:50 -0400 Valdis.Kletnieks@vt.edu wrote:
> > On Wed, 19 May 2010 16:13:09 PDT, akpm@linux-foundation.org said:
> > > The mm-of-the-moment snapshot 2010-05-19-16-12 has been uploaded to
> > > 
> > >    http://userweb.kernel.org/~akpm/mmotm/
> > 
> > So I'm looking closer at the BUG I just posted
> 
> I can't see that BUG report on lkml or in inbox.
> 
> > - I had deleted two further
> > BUGs because they were obviously follow-ons to the original.  But then...
> > 
> > Note the following 2 lines:
> > 
> > [   35.357018] note: keymap[2481] exited with preempt_count 1
> > [   35.360503] BUG: scheduling while atomic: keymap/2481/0x10000002
> > 
> > The kernel reports the instigating process exited - and then reports it
> > as the offender for a "scheduling while atomic". Insufficient attempted
> > cleanup after the first BUG?  Do we care because this is a sign of a
> > scheduler bug that could trip on a non-BUG as well, or is it "all bets
> > are off" because of the first BUG?
> 
> Yes, the oops code will end up calling do_exit() to get rid of this
> process and to try to keep the machine limping along.  So if you hit an
> oops with (say) a spinlock held, the task will end up calling do_exit()
> with a non-zero preempt_count.
> 
> So the only problem I'm seeing here is .... Dmitry's ;)


Hmm, any chance you could stick a printk in input_set_keycode and print
the id/name of the input device?

-- 
Dmitry

Re: mmotm 2010-05-19 BUG weirdness...

[Valdis.Kletnieks]

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On Thu, 20 May 2010 08:55:20 EDT, Andrew Morton said:
> On Thu, 20 May 2010 11:47:50 -0400 Valdis.Kletnieks@vt.edu wrote:
> 
> > On Wed, 19 May 2010 16:13:09 PDT, akpm@linux-foundation.org said:
> > > The mm-of-the-moment snapshot 2010-05-19-16-12 has been uploaded to
> > > 
> > >    http://userweb.kernel.org/~akpm/mmotm/
> > 
> > So I'm looking closer at the BUG I just posted
> 
> I can't see that BUG report on lkml or in inbox.

Whoops, the first one didn't make it out of my drafts folder for some reason,
is sent now..

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[2.6.34 PATCH] kernel: fix exit message for dead process

[Valdis.Kletnieks]

If a process is exiting with a non-zero preempt_count, it's in fact almost
certainly going to fail to do so because it is exiting due to a BUG or OOPS
while it held a lock, at which point it will never actually exit.  So change
the message to say it attempted to do so, rather than implying it succeeded.
Problem spotted when a process BUG'ed, the kernel reported the 'exited' status,
and then proceeded to BUG twice more dealing with the now-zombied process:

> [   35.357018] note: keymap[2481] exited with preempt_count 1
> [   35.360503] BUG: scheduling while atomic: keymap/2481/0x10000002

Yes, one line is 83 characters. It's still more readable than a split printk.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>

--- linux-2.6.34-mmotm0519/kernel/exit.c.dist	2010-05-20 10:59:11.646870592 -0400
+++ linux-2.6.34-mmotm0519/kernel/exit.c	2010-05-20 14:05:16.068800223 -0400
@@ -936,7 +936,7 @@ NORET_TYPE void do_exit(long code)
 	raw_spin_unlock_wait(&tsk->pi_lock);
 
 	if (unlikely(in_atomic()))
-		printk(KERN_INFO "note: %s[%d] exited with preempt_count %d\n",
+		printk(KERN_INFO "note: %s[%d] tried to exit with preempt_count %d\n",
 				current->comm, task_pid_nr(current),
 				preempt_count());
 

Re: [2.6.34 PATCH] kernel: fix exit message for dead process

[Andrew Morton]

On Thu, 20 May 2010 14:17:40 -0400
Valdis.Kletnieks@vt.edu wrote:

> If a process is exiting with a non-zero preempt_count, it's in fact almost
> certainly going to fail to do so because it is exiting due to a BUG or OOPS
> while it held a lock, at which point it will never actually exit.  So change
> the message to say it attempted to do so, rather than implying it succeeded.
> Problem spotted when a process BUG'ed, the kernel reported the 'exited' status,
> and then proceeded to BUG twice more dealing with the now-zombied process:
> 
> > [   35.357018] note: keymap[2481] exited with preempt_count 1
> > [   35.360503] BUG: scheduling while atomic: keymap/2481/0x10000002
> 
> Yes, one line is 83 characters. It's still more readable than a split printk.
> 
> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
> 
> --- linux-2.6.34-mmotm0519/kernel/exit.c.dist	2010-05-20 10:59:11.646870592 -0400
> +++ linux-2.6.34-mmotm0519/kernel/exit.c	2010-05-20 14:05:16.068800223 -0400
> @@ -936,7 +936,7 @@ NORET_TYPE void do_exit(long code)
>  	raw_spin_unlock_wait(&tsk->pi_lock);
>  
>  	if (unlikely(in_atomic()))
> -		printk(KERN_INFO "note: %s[%d] exited with preempt_count %d\n",
> +		printk(KERN_INFO "note: %s[%d] tried to exit with preempt_count %d\n",
>  				current->comm, task_pid_nr(current),
>  				preempt_count());

a) this message is kinda like __schedule_bug(), only
   __schedule_bug() does more stuff.  Perhaps some sharing is in order.

b) do_exit() eventually calls schedule() anyway, so if we have a bad
   preempt_count() here, schedule() should end up calling
   __schedule_bug(), so we don't need this message in do_exit(). 

   ah-hah, __schedule_bug() doesn't get called on the exit() path due to
   task->state==TASK_DEAD.  But we can surely change that. 
   schedule_debug() needs fixing anyway - what's it doing assuming that
   TASK_RUNNING==0?

c) it's pretty pointless printing anything at all if this task has
   oopsed.  This info is never interesting and will just cause the
   useful info to scroll into oblivion.

[PATCH -mmotm] media: ak881x needs slab.h

[Randy Dunlap]

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

Add slab.h to fix ak881x build:

drivers/media/video/ak881x.c:265:error: implicit declaration of function 'kzalloc'
drivers/media/video/ak881x.c:265:warning: assignment makes pointer from integer without a cast
drivers/media/video/ak881x.c:283:error: implicit declaration of function 'kfree'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
---
 drivers/media/video/ak881x.c |    1 +
 1 file changed, 1 insertion(+)

--- mmotm-2010-0519-1612.orig/drivers/media/video/ak881x.c
+++ mmotm-2010-0519-1612/drivers/media/video/ak881x.c
@@ -11,6 +11,7 @@
 #include <linux/i2c.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 #include <linux/videodev2.h>
 
 #include <media/ak881x.h>

[PATCH -mmotm] backlight: fix s6e63m0 kconfig

[Randy Dunlap]

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

Fix kconfig file dependency and help text.
Move the driver's Kconfig symbol inside the LCD_CLASS_DEVICE block.

When CONFIG_BACKLIGHT_CLASS_DEVICE is not enabled:
ERROR: "backlight_device_register" [drivers/video/backlight/s6e63m0.ko] undefined!

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: InKi Dae  <inki.dae@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
---
Looks like several backlight/LCD drivers have this kind of relationship.

 drivers/video/backlight/Kconfig |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

--- mmotm-2010-0519-1612.orig/drivers/video/backlight/Kconfig
+++ mmotm-2010-0519-1612/drivers/video/backlight/Kconfig
@@ -101,14 +101,16 @@ config LCD_HP700
 	  If you have an HP Jornada 700 series handheld (710/720/728)
 	  say Y to enable LCD control driver.
 
-endif # LCD_CLASS_DEVICE
-
 config LCD_S6E63M0
 	tristate "S6E63M0 AMOLED LCD Driver"
-	depends on LCD_CLASS_DEVICE && SPI
+	depends on SPI && BACKLIGHT_CLASS_DEVICE
 	default n
 	help
-	  If you have an S6E63M0 LCD Panel say Y to enable LCD control driver
+	  If you have an S6E63M0 LCD Panel, say Y to enable its
+	  LCD control driver.
+
+endif # LCD_CLASS_DEVICE
+
 #
 # Backlight
 #

[PATCH -mmotm] backlight: fix s6e63m0 device attr function return types

[Randy Dunlap]

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

Fix device attribute functions return types.

drivers/video/backlight/s6e63m0.c:718: warning: initialization from incompatible pointer type
drivers/video/backlight/s6e63m0.c:718: warning: initialization from incompatible pointer type
drivers/video/backlight/s6e63m0.c:732: warning: initialization from incompatible pointer type

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: InKi Dae  <inki.dae@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
---
 drivers/video/backlight/s6e63m0.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- mmotm-2010-0519-1612.orig/drivers/video/backlight/s6e63m0.c
+++ mmotm-2010-0519-1612/drivers/video/backlight/s6e63m0.c
@@ -654,7 +654,7 @@ static const struct backlight_ops s6e63m
 	.update_status = s6e63m0_set_brightness,
 };
 
-static int s6e63m0_sysfs_show_gamma_mode(struct device *dev,
+static ssize_t s6e63m0_sysfs_show_gamma_mode(struct device *dev,
 				      struct device_attribute *attr, char *buf)
 {
 	struct s6e63m0 *lcd = dev_get_drvdata(dev);
@@ -681,7 +681,7 @@ static int s6e63m0_sysfs_show_gamma_mode
 	return strlen(buf);
 }
 
-static int s6e63m0_sysfs_store_gamma_mode(struct device *dev,
+static ssize_t s6e63m0_sysfs_store_gamma_mode(struct device *dev,
 				       struct device_attribute *attr,
 				       const char *buf, size_t len)
 {
@@ -718,7 +718,7 @@ static int s6e63m0_sysfs_store_gamma_mod
 static DEVICE_ATTR(gamma_mode, 0644,
 		s6e63m0_sysfs_show_gamma_mode, s6e63m0_sysfs_store_gamma_mode);
 
-static int s6e63m0_sysfs_show_gamma_table(struct device *dev,
+static ssize_t s6e63m0_sysfs_show_gamma_table(struct device *dev,
 				      struct device_attribute *attr, char *buf)
 {
 	struct s6e63m0 *lcd = dev_get_drvdata(dev);

Re: [PATCH -mmotm] media: ak881x needs slab.h

[Ingo Molnar]

* Randy Dunlap <randy.dunlap@oracle.com> wrote:

> From: Randy Dunlap <randy.dunlap@oracle.com>
> 
> Add slab.h to fix ak881x build:
> 
> drivers/media/video/ak881x.c:265:error: implicit declaration of function 'kzalloc'
> drivers/media/video/ak881x.c:265:warning: assignment makes pointer from integer without a cast
> drivers/media/video/ak881x.c:283:error: implicit declaration of function 'kfree'
> 
> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
> Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
> ---
>  drivers/media/video/ak881x.c |    1 +

This build bug is now triggering in .35-rc1 as well.

	Ingo