* Re: rsync out of memory 2.6.8-rc2 @ 2004-07-19 9:19 Klaus Dittrich 2004-07-19 11:20 ` dentry cache leak? " bert hubert 0 siblings, 1 reply; 23+ messages in thread From: Klaus Dittrich @ 2004-07-19 9:19 UTC (permalink / raw) To: linux mailing-list; +Cc: gilbertd, nickpiggin, kladit Nick your mail got lost here, sorry. I did rsync -av xeon2:/disc1 . on the target system. xeon2 is the system that gets out of memory. /disc1 is 60GB and contains several thousand files. I think this is a common backup situation. I found out I could trigger the memory outage using du -s /disc1 too. -- Klaus ^ permalink raw reply [flat|nested] 23+ messages in thread
* dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-19 9:19 rsync out of memory 2.6.8-rc2 Klaus Dittrich @ 2004-07-19 11:20 ` bert hubert [not found] ` <20040719113228.GA15295@outpost.ds9a.nl> 0 siblings, 1 reply; 23+ messages in thread From: bert hubert @ 2004-07-19 11:20 UTC (permalink / raw) To: Klaus Dittrich; +Cc: linux mailing-list, gilbertd, nickpiggin On Mon, Jul 19, 2004 at 11:19:43AM +0200, Klaus Dittrich wrote: > I found out I could trigger the memory outage using du -s /disc1 too. Including crashing and/or running out of swap? That would indicate that the dentry cache is not cleaning itself up, or that something is wrong with reference counting. Can you run 'cat fs/dentry-state' before and after the du -s? (assuming there is an 'after'. Also, which fs is /disc1 on? any messages in dmesg? dentry-state ------------ Status of the directory cache. Since directory entries are dynamically allocated and deallocated, this file indicates the current status. It holds six values, in which the last two are not used and are always zero. The others are listed in table 2-1. Table 2-1: Status files of the directory cache .............................................................................. File Content nr_dentry Almost always zero nr_unused Number of unused cache entries age_limit in seconds after the entry may be reclaimed, when memory is short want_pages internally -- http://www.PowerDNS.com Open source, database driven DNS Software http://lartc.org Linux Advanced Routing & Traffic Control HOWTO ^ permalink raw reply [flat|nested] 23+ messages in thread
[parent not found: <20040719113228.GA15295@outpost.ds9a.nl>]
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 [not found] ` <20040719113228.GA15295@outpost.ds9a.nl> @ 2004-07-19 12:56 ` Klaus Dittrich 2004-07-26 1:06 ` Andrew Morton 0 siblings, 1 reply; 23+ messages in thread From: Klaus Dittrich @ 2004-07-19 12:56 UTC (permalink / raw) To: bert hubert; +Cc: Klaus Dittrich, linux mailing-list bert hubert wrote: >/proc/fs/dentry-state of course, sorry > >On Mon, Jul 19, 2004 at 01:20:47PM +0200, bert hubert wrote: > > >>On Mon, Jul 19, 2004 at 11:19:43AM +0200, Klaus Dittrich wrote: >> >> >> >>>I found out I could trigger the memory outage using du -s /disc1 too. >>> >>> >>Including crashing and/or running out of swap? That would indicate that the >>dentry cache is not cleaning itself up, or that something is wrong with >>reference counting. >> >>Can you run 'cat fs/dentry-state' before and after the du -s? (assuming >>there is an 'after'. Also, which fs is /disc1 on? any messages in dmesg? >> >>dentry-state >>------------ >> >>Status of the directory cache. Since directory entries are >>dynamically allocated and deallocated, this file indicates the current >>status. It holds six values, in which the last two are not used and are >>always zero. The others are listed in table 2-1. >> >> >>Table 2-1: Status files of the directory cache >>.............................................................................. >> File Content >> nr_dentry Almost always zero >> nr_unused Number of unused cache entries >> age_limit >> in seconds after the entry may be reclaimed, when memory is >>short >> want_pages internally >> >> >>-- >>http://www.PowerDNS.com Open source, database driven DNS Software >>http://lartc.org Linux Advanced Routing & Traffic Control HOWTO >>- >>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >>the body of a message to majordomo@vger.kernel.org >>More majordomo info at http://vger.kernel.org/majordomo-info.html >>Please read the FAQ at http://www.tux.org/lkml/ >> >> >> > > > The fs is ext2.cat /proc/sys/fs/dentry-state Output of cat /proc/sys/fs/dentry-state before and after processes got killed. 891083 888395 45 0 0 0 1142933 1085759 45 0 0 0 -- Klaus ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-19 12:56 ` Klaus Dittrich @ 2004-07-26 1:06 ` Andrew Morton 0 siblings, 0 replies; 23+ messages in thread From: Andrew Morton @ 2004-07-26 1:06 UTC (permalink / raw) To: Klaus Dittrich; +Cc: ahu, kladit, linux-kernel kladit@t-online.de (Klaus Dittrich) wrote: > > The fs is ext2.cat /proc/sys/fs/dentry-state > Output of cat /proc/sys/fs/dentry-state before and after processes got > killed. > 891083 888395 45 0 0 0 > 1142933 1085759 45 0 0 0 This bug is probably unique to yourself and a couple of other people. If it was hitting everyone, all the machines in the world would be going oom during the nightly updatedb run. Can you try a different compiler version? And try disabling any "unusual" config options, such as filesystem quotas, extended attributes, etc? Can you narrow the onset of the problem down to any particular kernel snapshot? Try disabling laptop_mode, if it's set. Carefully review the logs for any oopses: oopsing while holding shrinker_sem will do this for sure. ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2
@ 2004-07-26 15:06 Klaus Dittrich
2004-07-26 19:37 ` Andrew Morton
2004-07-29 21:07 ` Andrew Morton
0 siblings, 2 replies; 23+ messages in thread
From: Klaus Dittrich @ 2004-07-26 15:06 UTC (permalink / raw)
To: linux mailing-list; +Cc: kladit
>Can you narrow the onset of the problem down to any particular kernel
>snapshot?
Did it and here is the answer.
kernel-2.6.7 and bk's up to 2.6.7-bk7 survived a du -s,
kernels starting with 2.6.7-bk8 did not.
Compiler gcc-3.4.1
System SMP 2 Xeon-CPU's
Hardware Tyan 2665 Mobo
/disc1 is a software raid-1, mirror of two 60GB IDE disks.
To be sure to have clean conditions, I recompiled 2.6.7 and
some subsequent -bk kernels.
The configuration of each kernel is of a copy of .config from
2.6.7 and innovations during make oldconfig were answered using
the defaults.
Some observations while du -s is running:
With the 'good' kernels there is a freeze of about a second
when memory usage (xosview) has grown up to about 1.4 GByte.
Not using irqbalance results in very high system load of CPU0.
Gathered data follows below. Please cc me.
--
Klaus
linux-2.6.7 (good)
===========
cat /proc/sys/fs/dentry-state
7015 4538 45 0 0 0
du -s /disc1/
42119916 /disc1/
cat /proc/sys/fs/dentry-state
719959 690331 45 0 0 0
cat /proc/vmstat
nr_dirty 6
nr_writeback 0
nr_unstable 0
nr_page_table_pages 417
nr_mapped 36574
nr_slab 219486
pgpgin 822287
pgpgout 125952
pswpin 0
pswpout 0
pgalloc_high 218904
pgalloc_normal 590088
pgalloc_dma 3534
pgfree 967065
pgactivate 182625
pgdeactivate 156250
pgfault 216065
pgmajfault 2694
pgrefill_high 0
pgrefill_normal 154846
pgrefill_dma 1404
pgsteal_high 0
pgsteal_normal 81532
pgsteal_dma 483
pgscan_kswapd_high 0
pgscan_kswapd_normal 130065
pgscan_kswapd_dma 721
pgscan_direct_high 0
pgscan_direct_normal 179566
pgscan_direct_dma 2425
pginodesteal 12160
slabs_scanned 2817088
kswapd_steal 51850
kswapd_inodesteal 1888
pageoutrun 1083
allocstall 2857
pgrotated 8111
linux-2.6.7-bk6 (good)
===============
du -s /disc1/
42120684 /disc1/
cat /proc/sys/fs/dentry-state
720795 691157 45 0 0 0
cat /proc/vmstat
nr_dirty 11
nr_writeback 0
nr_unstable 0
nr_page_table_pages 459
nr_mapped 42928
nr_slab 219592
pgpgin 848899
pgpgout 135604
pswpin 0
pswpout 0
pgalloc_high 256670
pgalloc_normal 619555
pgalloc_dma 3210
pgfree 1023837
pgactivate 185293
pgdeactivate 157150
pgfault 264830
pgmajfault 3024
pgrefill_high 0
pgrefill_normal 156851
pgrefill_dma 299
pgsteal_high 0
pgsteal_normal 82775
pgsteal_dma 397
pgscan_kswapd_high 0
pgscan_kswapd_normal 126659
pgscan_kswapd_dma 457
pgscan_direct_high 0
pgscan_direct_normal 147678
pgscan_direct_dma 365
pginodesteal 6491
slabs_scanned 2800364
kswapd_steal 55007
kswapd_inodesteal 8269
pageoutrun 1147
allocstall 2225
pgrotated 8831
linux-2.6.7-bk7 (good)
===============
cat /proc/sys/fs/dentry-state
6990 4522 45 0 0 0
du -s /disc1
..
some snapshoots of /proc/sys/fs/dentry-state
761894 723814 45 0 0 0
760283 722353 45 0 0 0
759821 721937 45 0 0 0
759872 722127 45 0 0 0
759742 722079 45 0 0 0
759666 722090 45 0 0 0
757161 719829 45 0 0 0
755236 718111 45 0 0 0
755639 718584 45 0 0 0
714917 683972 45 0 0 0
716095 685185 45 0 0 0
715329 684496 45 0 0 0
..
42121188 /disc1
cat /proc/vmstat
nr_dirty 7
nr_writeback 0
nr_unstable 0
nr_page_table_pages 469
nr_mapped 43769
nr_slab 219515
pgpgin 854375
pgpgout 136916
pswpin 0
pswpout 0
pgalloc_high 265027
pgalloc_normal 621919
pgalloc_dma 3790
pgfree 1031340
pgactivate 196742
pgdeactivate 169483
pgfault 288603
pgmajfault 3068
pgrefill_high 0
pgrefill_normal 169001
pgrefill_dma 482
pgsteal_high 0
pgsteal_normal 83976
pgsteal_dma 490
pgscan_kswapd_high 0
pgscan_kswapd_normal 134412
pgscan_kswapd_dma 738
pgscan_direct_high 0
pgscan_direct_normal 175212
pgscan_direct_dma 1310
pginodesteal 3476
slabs_scanned 2826482
kswapd_steal 55611
kswapd_inodesteal 6862
pageoutrun 1214
allocstall 2734
pgrotated 8730
linux-2.6.7-bk8 (bad)
===============
cat /proc/sys/fs/dentry-state
7357 4821 45 0 0 0
du -s /disc1/
After some processes wer killed ..
cat /proc/sys/fs/dentry-state
1090719 1035089 45 0 0 0
cat /proc/vmstat
nr_dirty 26
nr_writeback 0
nr_unstable 0
nr_page_table_pages 365
nr_mapped 29495
nr_slab 219834
pgpgin 594519
pgpgout 80416
pswpin 0
pswpout 0
pgalloc_high 199307
pgalloc_normal 489087
pgalloc_dma 3711
pgfree 868142
pgactivate 94618
pgdeactivate 65790
pgfault 227492
pgmajfault 3065
pgrefill_high 0
pgrefill_normal 65694
pgrefill_dma 96
pgsteal_high 0
pgsteal_normal 46724
pgsteal_dma 337
pgscan_kswapd_high 0
pgscan_kswapd_normal 49351
pgscan_kswapd_dma 331
pgscan_direct_high 0
pgscan_direct_normal 46908
pgscan_direct_dma 41
pginodesteal 2743
slabs_scanned 1186575
kswapd_steal 39703
kswapd_inodesteal 6800
pageoutrun 323
allocstall 1088
pgrotated 1382
^ permalink raw reply [flat|nested] 23+ messages in thread* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-26 15:06 Klaus Dittrich @ 2004-07-26 19:37 ` Andrew Morton 2004-07-26 20:02 ` Klaus Dittrich 2004-07-29 21:07 ` Andrew Morton 1 sibling, 1 reply; 23+ messages in thread From: Andrew Morton @ 2004-07-26 19:37 UTC (permalink / raw) To: Klaus Dittrich; +Cc: linux-kernel, kladit kladit@t-online.de (Klaus Dittrich) wrote: > > >Can you narrow the onset of the problem down to any particular kernel > >snapshot? > > Did it and here is the answer. > > kernel-2.6.7 and bk's up to 2.6.7-bk7 survived a du -s, > kernels starting with 2.6.7-bk8 did not. Dammit, -bk7 to -bk8 is a 1.8M diff. Relevant changes include the switch to the rcu callbacks (make them take an rcu_head* rather than a void*) and the introduction of /proc/sys/vm/vfs_cache_pressure. So the immediate question is: please check the contents of your vfs_cache_pressure tunable. It should be 100. A setting of zero would cause this behaviour. > > Compiler gcc-3.4.1 It would be useful to try a different compiler version. There's _something_ different in your setup. If we can work out what this factor is, it will lead us to the bug. ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-26 19:37 ` Andrew Morton @ 2004-07-26 20:02 ` Klaus Dittrich 2004-07-26 20:38 ` Andrew Morton 0 siblings, 1 reply; 23+ messages in thread From: Klaus Dittrich @ 2004-07-26 20:02 UTC (permalink / raw) To: Andrew Morton; +Cc: Klaus Dittrich, linux-kernel Andrew Morton wrote: >kladit@t-online.de (Klaus Dittrich) wrote: > > >>>Can you narrow the onset of the problem down to any particular kernel >>> >>> >> >snapshot? >> >> Did it and here is the answer. >> >> kernel-2.6.7 and bk's up to 2.6.7-bk7 survived a du -s, >> kernels starting with 2.6.7-bk8 did not. >> >> > >Dammit, -bk7 to -bk8 is a 1.8M diff. Relevant changes include the switch >to the rcu callbacks (make them take an rcu_head* rather than a void*) and >the introduction of /proc/sys/vm/vfs_cache_pressure. > >So the immediate question is: please check the contents of your >vfs_cache_pressure tunable. It should be 100. A setting of zero would >cause this behaviour. > > > >> Compiler gcc-3.4.1 >> >> > >It would be useful to try a different compiler version. > >There's _something_ different in your setup. If we can work out what this >factor is, it will lead us to the bug. > > > cat /proc/sys/vm/vfs_cache_pressure shows 100. Should I try an older or newer compiler ? ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-26 20:02 ` Klaus Dittrich @ 2004-07-26 20:38 ` Andrew Morton 2004-07-26 21:39 ` Klaus Dittrich 0 siblings, 1 reply; 23+ messages in thread From: Andrew Morton @ 2004-07-26 20:38 UTC (permalink / raw) To: Klaus Dittrich; +Cc: kladit, linux-kernel kladit@t-online.de (Klaus Dittrich) wrote: > > cat /proc/sys/vm/vfs_cache_pressure shows 100. Drat. > Should I try an older or newer compiler ? gcc-3.3 or gcc-3.4 would suit. If that doesn't change anything, please send me the .config. ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-26 20:38 ` Andrew Morton @ 2004-07-26 21:39 ` Klaus Dittrich 2004-07-26 22:14 ` Jan-Frode Myklebust 0 siblings, 1 reply; 23+ messages in thread From: Klaus Dittrich @ 2004-07-26 21:39 UTC (permalink / raw) To: Andrew Morton; +Cc: Klaus Dittrich, linux-kernel [-- Attachment #1: Type: text/plain, Size: 356 bytes --] Andrew Morton wrote: >kladit@t-online.de (Klaus Dittrich) wrote: > > >>cat /proc/sys/vm/vfs_cache_pressure shows 100. >> >> > >Drat. > > > >> Should I try an older or newer compiler ? >> >> > >gcc-3.3 or gcc-3.4 would suit. If that doesn't change anything, please >send me the .config. > > > gcc-3.4 did not help. Attatched is my .config. [-- Attachment #2: .config --] [-- Type: text/plain, Size: 30678 bytes --] # # Automatically generated make config: don't edit # CONFIG_X86=y CONFIG_MMU=y CONFIG_UID16=y CONFIG_GENERIC_ISA_DMA=y # # Code maturity level options # CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_STANDALONE=y # # General setup # CONFIG_SWAP=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y # CONFIG_AUDIT is not set CONFIG_LOG_BUF_SHIFT=15 CONFIG_HOTPLUG=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y # CONFIG_EMBEDDED is not set CONFIG_KALLSYMS=y CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=y CONFIG_IOSCHED_DEADLINE=y CONFIG_IOSCHED_CFQ=y # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set # # Loadable module support # CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_OBSOLETE_MODPARM=y # CONFIG_MODVERSIONS is not set CONFIG_KMOD=y CONFIG_STOP_MACHINE=y # # Processor type and features # CONFIG_X86_PC=y # CONFIG_X86_ELAN is not set # CONFIG_X86_VOYAGER is not set # CONFIG_X86_NUMAQ is not set # CONFIG_X86_SUMMIT is not set # CONFIG_X86_BIGSMP is not set # CONFIG_X86_VISWS is not set # CONFIG_X86_GENERICARCH is not set # CONFIG_X86_ES7000 is not set # CONFIG_M386 is not set # CONFIG_M486 is not set # CONFIG_M586 is not set # CONFIG_M586TSC is not set # CONFIG_M586MMX is not set # CONFIG_M686 is not set # CONFIG_MPENTIUMII is not set # CONFIG_MPENTIUMIII is not set # CONFIG_MPENTIUMM is not set CONFIG_MPENTIUM4=y # CONFIG_MK6 is not set # CONFIG_MK7 is not set # CONFIG_MK8 is not set # CONFIG_MCRUSOE is not set # CONFIG_MWINCHIPC6 is not set # CONFIG_MWINCHIP2 is not set # CONFIG_MWINCHIP3D is not set # CONFIG_MCYRIXIII is not set # CONFIG_MVIAC3_2 is not set # CONFIG_X86_GENERIC is not set CONFIG_X86_CMPXCHG=y CONFIG_X86_XADD=y CONFIG_X86_L1_CACHE_SHIFT=7 CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INVLPG=y CONFIG_X86_BSWAP=y CONFIG_X86_POPAD_OK=y CONFIG_X86_GOOD_APIC=y CONFIG_X86_INTEL_USERCOPY=y CONFIG_X86_USE_PPRO_CHECKSUM=y # CONFIG_HPET_TIMER is not set CONFIG_SMP=y CONFIG_NR_CPUS=4 CONFIG_SCHED_SMT=y CONFIG_PREEMPT=y CONFIG_X86_LOCAL_APIC=y CONFIG_X86_IO_APIC=y CONFIG_X86_TSC=y CONFIG_X86_MCE=y CONFIG_X86_MCE_NONFATAL=y CONFIG_X86_MCE_P4THERMAL=y # CONFIG_TOSHIBA is not set # CONFIG_I8K is not set # CONFIG_MICROCODE is not set # CONFIG_X86_MSR is not set # CONFIG_X86_CPUID is not set # # Firmware Drivers # # CONFIG_EDD is not set # CONFIG_NOHIGHMEM is not set CONFIG_HIGHMEM4G=y # CONFIG_HIGHMEM64G is not set CONFIG_HIGHMEM=y # CONFIG_HIGHPTE is not set # CONFIG_MATH_EMULATION is not set CONFIG_MTRR=y # CONFIG_EFI is not set CONFIG_IRQBALANCE=y CONFIG_HAVE_DEC_LOCK=y CONFIG_REGPARM=y # # Power management options (ACPI, APM) # CONFIG_PM=y # CONFIG_SOFTWARE_SUSPEND is not set # CONFIG_PM_DISK is not set # # ACPI (Advanced Configuration and Power Interface) Support # CONFIG_ACPI=y CONFIG_ACPI_BOOT=y CONFIG_ACPI_INTERPRETER=y CONFIG_ACPI_SLEEP=y CONFIG_ACPI_SLEEP_PROC_FS=y # CONFIG_ACPI_AC is not set # CONFIG_ACPI_BATTERY is not set CONFIG_ACPI_BUTTON=y CONFIG_ACPI_FAN=y CONFIG_ACPI_PROCESSOR=y CONFIG_ACPI_THERMAL=y # CONFIG_ACPI_ASUS is not set # CONFIG_ACPI_TOSHIBA is not set # CONFIG_ACPI_DEBUG is not set CONFIG_ACPI_BUS=y CONFIG_ACPI_EC=y CONFIG_ACPI_POWER=y CONFIG_ACPI_PCI=y CONFIG_ACPI_SYSTEM=y # CONFIG_X86_PM_TIMER is not set # # APM (Advanced Power Management) BIOS Support # CONFIG_APM=y # CONFIG_APM_IGNORE_USER_SUSPEND is not set # CONFIG_APM_DO_ENABLE is not set # CONFIG_APM_CPU_IDLE is not set # CONFIG_APM_DISPLAY_BLANK is not set CONFIG_APM_RTC_IS_GMT=y # CONFIG_APM_ALLOW_INTS is not set # CONFIG_APM_REAL_MODE_POWER_OFF is not set # # CPU Frequency scaling # CONFIG_CPU_FREQ=y # CONFIG_CPU_FREQ_PROC_INTF is not set CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set CONFIG_CPU_FREQ_GOV_PERFORMANCE=y # CONFIG_CPU_FREQ_GOV_POWERSAVE is not set # CONFIG_CPU_FREQ_GOV_USERSPACE is not set # CONFIG_CPU_FREQ_TABLE is not set # # CPUFreq processor drivers # # CONFIG_X86_POWERNOW_K8 is not set # CONFIG_X86_GX_SUSPMOD is not set # CONFIG_X86_LONGRUN is not set # # Bus options (PCI, PCMCIA, EISA, MCA, ISA) # CONFIG_PCI=y # CONFIG_PCI_GOBIOS is not set # CONFIG_PCI_GOMMCONFIG is not set # CONFIG_PCI_GODIRECT is not set CONFIG_PCI_GOANY=y CONFIG_PCI_BIOS=y CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y # CONFIG_PCI_USE_VECTOR is not set # CONFIG_PCI_LEGACY_PROC is not set CONFIG_PCI_NAMES=y # CONFIG_ISA is not set # CONFIG_MCA is not set # CONFIG_SCx200 is not set # # PCMCIA/CardBus support # # CONFIG_PCMCIA is not set # # PCI Hotplug Support # # CONFIG_HOTPLUG_PCI is not set # # Executable file formats # CONFIG_BINFMT_ELF=y CONFIG_BINFMT_AOUT=y CONFIG_BINFMT_MISC=y # # Device Drivers # # # Generic Driver Options # CONFIG_PREVENT_FIRMWARE_BUILD=y # CONFIG_FW_LOADER is not set # # Memory Technology Devices (MTD) # # CONFIG_MTD is not set # # Parallel port support # CONFIG_PARPORT=y CONFIG_PARPORT_PC=y CONFIG_PARPORT_PC_CML1=y # CONFIG_PARPORT_SERIAL is not set # CONFIG_PARPORT_PC_FIFO is not set CONFIG_PARPORT_PC_SUPERIO=y # CONFIG_PARPORT_OTHER is not set CONFIG_PARPORT_1284=y # # Plug and Play support # # # Block devices # CONFIG_BLK_DEV_FD=y # CONFIG_PARIDE is not set # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set # CONFIG_BLK_DEV_DAC960 is not set # CONFIG_BLK_DEV_UMEM is not set CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_CRYPTOLOOP=y # CONFIG_BLK_DEV_NBD is not set # CONFIG_BLK_DEV_SX8 is not set CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=4096 # CONFIG_BLK_DEV_INITRD is not set # CONFIG_LBD is not set # # ATA/ATAPI/MFM/RLL support # CONFIG_IDE=y CONFIG_BLK_DEV_IDE=y # # Please see Documentation/ide.txt for help/info on IDE drives # # CONFIG_BLK_DEV_IDE_SATA is not set # CONFIG_BLK_DEV_HD_IDE is not set CONFIG_BLK_DEV_IDEDISK=y # CONFIG_IDEDISK_MULTI_MODE is not set # CONFIG_BLK_DEV_IDECD is not set # CONFIG_BLK_DEV_IDETAPE is not set # CONFIG_BLK_DEV_IDEFLOPPY is not set # CONFIG_BLK_DEV_IDESCSI is not set CONFIG_IDE_TASK_IOCTL=y CONFIG_IDE_TASKFILE_IO=y # # IDE chipset support/bugfixes # CONFIG_IDE_GENERIC=y # CONFIG_BLK_DEV_CMD640 is not set CONFIG_BLK_DEV_IDEPCI=y # CONFIG_IDEPCI_SHARE_IRQ is not set # CONFIG_BLK_DEV_OFFBOARD is not set CONFIG_BLK_DEV_GENERIC=y # CONFIG_BLK_DEV_OPTI621 is not set # CONFIG_BLK_DEV_RZ1000 is not set CONFIG_BLK_DEV_IDEDMA_PCI=y # CONFIG_BLK_DEV_IDEDMA_FORCED is not set CONFIG_IDEDMA_PCI_AUTO=y # CONFIG_IDEDMA_ONLYDISK is not set CONFIG_BLK_DEV_ADMA=y # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_BLK_DEV_ALI15X3 is not set # CONFIG_BLK_DEV_AMD74XX is not set # CONFIG_BLK_DEV_ATIIXP is not set # CONFIG_BLK_DEV_CMD64X is not set # CONFIG_BLK_DEV_TRIFLEX is not set # CONFIG_BLK_DEV_CY82C693 is not set # CONFIG_BLK_DEV_CS5520 is not set # CONFIG_BLK_DEV_CS5530 is not set # CONFIG_BLK_DEV_HPT34X is not set # CONFIG_BLK_DEV_HPT366 is not set # CONFIG_BLK_DEV_SC1200 is not set CONFIG_BLK_DEV_PIIX=y # CONFIG_BLK_DEV_NS87415 is not set # CONFIG_BLK_DEV_PDC202XX_OLD is not set # CONFIG_BLK_DEV_PDC202XX_NEW is not set # CONFIG_BLK_DEV_SVWKS is not set # CONFIG_BLK_DEV_SIIMAGE is not set # CONFIG_BLK_DEV_SIS5513 is not set # CONFIG_BLK_DEV_SLC90E66 is not set # CONFIG_BLK_DEV_TRM290 is not set # CONFIG_BLK_DEV_VIA82CXXX is not set # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set CONFIG_IDEDMA_AUTO=y # CONFIG_BLK_DEV_HD is not set # # SCSI device support # CONFIG_SCSI=y CONFIG_SCSI_PROC_FS=y # # SCSI support type (disk, tape, CD-ROM) # CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=y # CONFIG_CHR_DEV_OSST is not set CONFIG_BLK_DEV_SR=y CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=y # # Some SCSI devices (e.g. CD jukebox) support multiple LUNs # # CONFIG_SCSI_MULTI_LUN is not set CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y # # SCSI Transport Attributes # CONFIG_SCSI_SPI_ATTRS=y # CONFIG_SCSI_FC_ATTRS is not set # # SCSI low-level drivers # # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set # CONFIG_SCSI_AACRAID is not set # CONFIG_SCSI_AIC7XXX is not set # CONFIG_SCSI_AIC7XXX_OLD is not set CONFIG_SCSI_AIC79XX=y CONFIG_AIC79XX_CMDS_PER_DEVICE=32 CONFIG_AIC79XX_RESET_DELAY_MS=7500 # CONFIG_AIC79XX_BUILD_FIRMWARE is not set CONFIG_AIC79XX_ENABLE_RD_STRM=y CONFIG_AIC79XX_DEBUG_ENABLE=y CONFIG_AIC79XX_DEBUG_MASK=0 CONFIG_AIC79XX_REG_PRETTY_PRINT=y # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_MEGARAID is not set # CONFIG_SCSI_SATA is not set # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_EATA is not set # CONFIG_SCSI_EATA_PIO is not set # CONFIG_SCSI_FUTURE_DOMAIN is not set # CONFIG_SCSI_GDTH is not set # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INIA100 is not set # CONFIG_SCSI_PPA is not set # CONFIG_SCSI_IMM is not set CONFIG_SCSI_SYM53C8XX_2=y CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1 CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16 CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64 # CONFIG_SCSI_SYM53C8XX_IOMAPPED is not set # CONFIG_SCSI_IPR is not set # CONFIG_SCSI_QLOGIC_ISP is not set # CONFIG_SCSI_QLOGIC_FC is not set # CONFIG_SCSI_QLOGIC_1280 is not set CONFIG_SCSI_QLA2XXX=y # CONFIG_SCSI_QLA21XX is not set # CONFIG_SCSI_QLA22XX is not set # CONFIG_SCSI_QLA2300 is not set # CONFIG_SCSI_QLA2322 is not set # CONFIG_SCSI_QLA6312 is not set # CONFIG_SCSI_QLA6322 is not set # CONFIG_SCSI_DC395x is not set # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_NSP32 is not set # CONFIG_SCSI_DEBUG is not set # # Multi-device support (RAID and LVM) # CONFIG_MD=y CONFIG_BLK_DEV_MD=y # CONFIG_MD_LINEAR is not set # CONFIG_MD_RAID0 is not set CONFIG_MD_RAID1=y # CONFIG_MD_RAID5 is not set # CONFIG_MD_RAID6 is not set # CONFIG_MD_MULTIPATH is not set # CONFIG_BLK_DEV_DM is not set # # Fusion MPT device support # # CONFIG_FUSION is not set # # IEEE 1394 (FireWire) support # CONFIG_IEEE1394=y # # Subsystem Options # # CONFIG_IEEE1394_VERBOSEDEBUG is not set # CONFIG_IEEE1394_OUI_DB is not set # CONFIG_IEEE1394_EXTRA_CONFIG_ROMS is not set # # Device Drivers # # CONFIG_IEEE1394_PCILYNX is not set CONFIG_IEEE1394_OHCI1394=y # # Protocol Drivers # # CONFIG_IEEE1394_VIDEO1394 is not set # CONFIG_IEEE1394_SBP2 is not set # CONFIG_IEEE1394_ETH1394 is not set # CONFIG_IEEE1394_DV1394 is not set CONFIG_IEEE1394_RAWIO=y # CONFIG_IEEE1394_CMP is not set # # I2O device support # # CONFIG_I2O is not set # # Networking support # CONFIG_NET=y # # Networking options # CONFIG_PACKET=y CONFIG_PACKET_MMAP=y # CONFIG_NETLINK_DEV is not set CONFIG_UNIX=y # CONFIG_NET_KEY is not set CONFIG_INET=y CONFIG_IP_MULTICAST=y # CONFIG_IP_ADVANCED_ROUTER is not set # CONFIG_IP_PNP is not set # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set # CONFIG_IP_MROUTE is not set # CONFIG_ARPD is not set # CONFIG_SYN_COOKIES is not set # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set # CONFIG_INET_IPCOMP is not set # # IP: Virtual Server Configuration # # CONFIG_IP_VS is not set # CONFIG_IPV6 is not set CONFIG_NETFILTER=y # CONFIG_NETFILTER_DEBUG is not set # # IP: Netfilter Configuration # CONFIG_IP_NF_CONNTRACK=y CONFIG_IP_NF_FTP=y CONFIG_IP_NF_IRC=y CONFIG_IP_NF_TFTP=y CONFIG_IP_NF_AMANDA=y # CONFIG_IP_NF_QUEUE is not set CONFIG_IP_NF_IPTABLES=y # CONFIG_IP_NF_MATCH_LIMIT is not set CONFIG_IP_NF_MATCH_IPRANGE=y CONFIG_IP_NF_MATCH_MAC=y CONFIG_IP_NF_MATCH_PKTTYPE=y CONFIG_IP_NF_MATCH_MARK=y CONFIG_IP_NF_MATCH_MULTIPORT=y CONFIG_IP_NF_MATCH_TOS=y CONFIG_IP_NF_MATCH_RECENT=y CONFIG_IP_NF_MATCH_ECN=y CONFIG_IP_NF_MATCH_DSCP=y # CONFIG_IP_NF_MATCH_AH_ESP is not set CONFIG_IP_NF_MATCH_LENGTH=y CONFIG_IP_NF_MATCH_TTL=y CONFIG_IP_NF_MATCH_TCPMSS=y # CONFIG_IP_NF_MATCH_HELPER is not set # CONFIG_IP_NF_MATCH_STATE is not set # CONFIG_IP_NF_MATCH_CONNTRACK is not set CONFIG_IP_NF_MATCH_OWNER=y CONFIG_IP_NF_FILTER=y CONFIG_IP_NF_TARGET_REJECT=y # CONFIG_IP_NF_NAT is not set # CONFIG_IP_NF_MANGLE is not set # CONFIG_IP_NF_TARGET_LOG is not set # CONFIG_IP_NF_TARGET_ULOG is not set # CONFIG_IP_NF_TARGET_TCPMSS is not set CONFIG_IP_NF_ARPTABLES=y CONFIG_IP_NF_ARPFILTER=y # CONFIG_IP_NF_ARP_MANGLE is not set CONFIG_IP_NF_TARGET_NOTRACK=y CONFIG_IP_NF_RAW=y # CONFIG_IP_NF_MATCH_ADDRTYPE is not set # CONFIG_IP_NF_MATCH_REALM is not set # # SCTP Configuration (EXPERIMENTAL) # # CONFIG_IP_SCTP is not set # CONFIG_ATM is not set # CONFIG_BRIDGE is not set # CONFIG_VLAN_8021Q is not set # CONFIG_DECNET is not set # CONFIG_LLC2 is not set # CONFIG_IPX is not set # CONFIG_ATALK is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set # CONFIG_NET_DIVERT is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_NET_FASTROUTE is not set # CONFIG_NET_HW_FLOWCONTROL is not set # # QoS and/or fair queueing # # CONFIG_NET_SCHED is not set # CONFIG_NET_CLS_ROUTE is not set # # Network testing # # CONFIG_NET_PKTGEN is not set # CONFIG_NETPOLL is not set # CONFIG_NET_POLL_CONTROLLER is not set # CONFIG_HAMRADIO is not set # CONFIG_IRDA is not set # CONFIG_BT is not set CONFIG_NETDEVICES=y CONFIG_DUMMY=y # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set # # ARCnet devices # # CONFIG_ARCNET is not set # # Ethernet (10 or 100Mbit) # CONFIG_NET_ETHERNET=y CONFIG_MII=y # CONFIG_HAPPYMEAL is not set # CONFIG_SUNGEM is not set # CONFIG_NET_VENDOR_3COM is not set # # Tulip family network device support # # CONFIG_NET_TULIP is not set # CONFIG_HP100 is not set CONFIG_NET_PCI=y # CONFIG_PCNET32 is not set # CONFIG_AMD8111_ETH is not set # CONFIG_ADAPTEC_STARFIRE is not set # CONFIG_B44 is not set # CONFIG_FORCEDETH is not set # CONFIG_DGRS is not set # CONFIG_EEPRO100 is not set # CONFIG_E100 is not set # CONFIG_FEALNX is not set # CONFIG_NATSEMI is not set # CONFIG_NE2K_PCI is not set # CONFIG_8139CP is not set CONFIG_8139TOO=y # CONFIG_8139TOO_PIO is not set # CONFIG_8139TOO_TUNE_TWISTER is not set # CONFIG_8139TOO_8129 is not set # CONFIG_8139_OLD_RX_RESET is not set # CONFIG_SIS900 is not set # CONFIG_EPIC100 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set # CONFIG_VIA_RHINE is not set # CONFIG_VIA_VELOCITY is not set # # Ethernet (1000 Mbit) # # CONFIG_ACENIC is not set # CONFIG_DL2K is not set CONFIG_E1000=y CONFIG_E1000_NAPI=y # CONFIG_NS83820 is not set # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set # CONFIG_R8169 is not set # CONFIG_SK98LIN is not set # CONFIG_TIGON3 is not set # # Ethernet (10000 Mbit) # # CONFIG_IXGB is not set # CONFIG_S2IO is not set # # Token Ring devices # # CONFIG_TR is not set # # Wireless LAN (non-hamradio) # # CONFIG_NET_RADIO is not set # # Wan interfaces # # CONFIG_WAN is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set # CONFIG_PLIP is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set # CONFIG_NET_FC is not set # CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set # # ISDN subsystem # # CONFIG_ISDN is not set # # Telephony Support # # CONFIG_PHONE is not set # # Input device support # CONFIG_INPUT=y # # Userland interfaces # CONFIG_INPUT_MOUSEDEV=y CONFIG_INPUT_MOUSEDEV_PSAUX=y CONFIG_INPUT_MOUSEDEV_SCREEN_X=1280 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1024 # CONFIG_INPUT_JOYDEV is not set # CONFIG_INPUT_TSDEV is not set # CONFIG_INPUT_EVDEV is not set # CONFIG_INPUT_EVBUG is not set # # Input I/O drivers # # CONFIG_GAMEPORT is not set CONFIG_SOUND_GAMEPORT=y CONFIG_SERIO=y CONFIG_SERIO_I8042=y # CONFIG_SERIO_SERPORT is not set # CONFIG_SERIO_CT82C710 is not set # CONFIG_SERIO_PARKBD is not set # CONFIG_SERIO_PCIPS2 is not set # # Input Device Drivers # CONFIG_INPUT_KEYBOARD=y CONFIG_KEYBOARD_ATKBD=y # CONFIG_KEYBOARD_SUNKBD is not set # CONFIG_KEYBOARD_LKKBD is not set # CONFIG_KEYBOARD_XTKBD is not set # CONFIG_KEYBOARD_NEWTON is not set CONFIG_INPUT_MOUSE=y CONFIG_MOUSE_PS2=y # CONFIG_MOUSE_SERIAL is not set # CONFIG_MOUSE_VSXXXAA is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TOUCHSCREEN is not set CONFIG_INPUT_MISC=y CONFIG_INPUT_PCSPKR=y # CONFIG_INPUT_UINPUT is not set # # Character devices # CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y # CONFIG_SERIAL_NONSTANDARD is not set # # Serial drivers # CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_ACPI=y CONFIG_SERIAL_8250_NR_UARTS=4 # CONFIG_SERIAL_8250_EXTENDED is not set # # Non-8250 serial port support # CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 CONFIG_PRINTER=y # CONFIG_LP_CONSOLE is not set # CONFIG_PPDEV is not set # CONFIG_TIPAR is not set # CONFIG_QIC02_TAPE is not set # # IPMI # CONFIG_IPMI_HANDLER=y CONFIG_IPMI_PANIC_EVENT=y # CONFIG_IPMI_PANIC_STRING is not set CONFIG_IPMI_DEVICE_INTERFACE=y # CONFIG_IPMI_SI is not set CONFIG_IPMI_WATCHDOG=y # # Watchdog Cards # # CONFIG_WATCHDOG is not set # CONFIG_HW_RANDOM is not set # CONFIG_NVRAM is not set CONFIG_RTC=y # CONFIG_DTLK is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set # CONFIG_SONYPI is not set # # Ftape, the floppy tape device driver # CONFIG_AGP=y # CONFIG_AGP_ALI is not set # CONFIG_AGP_ATI is not set # CONFIG_AGP_AMD is not set # CONFIG_AGP_AMD64 is not set CONFIG_AGP_INTEL=y # CONFIG_AGP_INTEL_MCH is not set # CONFIG_AGP_NVIDIA is not set # CONFIG_AGP_SIS is not set # CONFIG_AGP_SWORKS is not set # CONFIG_AGP_VIA is not set # CONFIG_AGP_EFFICEON is not set CONFIG_DRM=y # CONFIG_DRM_TDFX is not set # CONFIG_DRM_GAMMA is not set # CONFIG_DRM_R128 is not set # CONFIG_DRM_RADEON is not set # CONFIG_DRM_I810 is not set # CONFIG_DRM_I830 is not set CONFIG_DRM_MGA=y # CONFIG_DRM_SIS is not set # CONFIG_MWAVE is not set # CONFIG_RAW_DRIVER is not set # CONFIG_HPET is not set # CONFIG_HANGCHECK_TIMER is not set # # I2C support # CONFIG_I2C=y CONFIG_I2C_CHARDEV=y # # I2C Algorithms # CONFIG_I2C_ALGOBIT=y CONFIG_I2C_ALGOPCF=y # # I2C Hardware Bus support # # CONFIG_I2C_ALI1535 is not set # CONFIG_I2C_ALI1563 is not set # CONFIG_I2C_ALI15X3 is not set # CONFIG_I2C_AMD756 is not set # CONFIG_I2C_AMD8111 is not set CONFIG_I2C_I801=y # CONFIG_I2C_I810 is not set # CONFIG_I2C_ISA is not set # CONFIG_I2C_NFORCE2 is not set # CONFIG_I2C_PARPORT is not set # CONFIG_I2C_PARPORT_LIGHT is not set CONFIG_I2C_PIIX4=y # CONFIG_I2C_PROSAVAGE is not set # CONFIG_I2C_SAVAGE4 is not set # CONFIG_SCx200_ACB is not set # CONFIG_I2C_SIS5595 is not set # CONFIG_I2C_SIS630 is not set # CONFIG_I2C_SIS96X is not set # CONFIG_I2C_VIA is not set # CONFIG_I2C_VIAPRO is not set # CONFIG_I2C_VOODOO3 is not set # # Hardware Sensors Chip support # CONFIG_I2C_SENSOR=y # CONFIG_SENSORS_ADM1021 is not set # CONFIG_SENSORS_ASB100 is not set # CONFIG_SENSORS_DS1621 is not set # CONFIG_SENSORS_FSCHER is not set # CONFIG_SENSORS_GL518SM is not set # CONFIG_SENSORS_IT87 is not set # CONFIG_SENSORS_LM75 is not set # CONFIG_SENSORS_LM78 is not set # CONFIG_SENSORS_LM80 is not set # CONFIG_SENSORS_LM83 is not set CONFIG_SENSORS_LM85=y # CONFIG_SENSORS_LM90 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_VIA686A is not set # CONFIG_SENSORS_W83781D is not set # CONFIG_SENSORS_W83L785TS is not set CONFIG_SENSORS_W83627HF=y # # Other I2C Chip support # CONFIG_SENSORS_EEPROM=y # CONFIG_SENSORS_PCF8574 is not set # CONFIG_SENSORS_PCF8591 is not set # CONFIG_SENSORS_RTC8564 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # # Misc devices # # CONFIG_IBM_ASM is not set # # Multimedia devices # # CONFIG_VIDEO_DEV is not set # # Digital Video Broadcasting Devices # # CONFIG_DVB is not set # # Graphics support # CONFIG_FB=y # CONFIG_FB_CIRRUS is not set # CONFIG_FB_PM2 is not set # CONFIG_FB_CYBER2000 is not set # CONFIG_FB_ASILIANT is not set # CONFIG_FB_IMSTT is not set # CONFIG_FB_VGA16 is not set # CONFIG_FB_VESA is not set CONFIG_VIDEO_SELECT=y # CONFIG_FB_HGA is not set # CONFIG_FB_RIVA is not set # CONFIG_FB_I810 is not set CONFIG_FB_MATROX=y # CONFIG_FB_MATROX_MILLENIUM is not set # CONFIG_FB_MATROX_MYSTIQUE is not set CONFIG_FB_MATROX_G450=y CONFIG_FB_MATROX_G100=y CONFIG_FB_MATROX_I2C=y # CONFIG_FB_MATROX_MAVEN is not set # CONFIG_FB_MATROX_MULTIHEAD is not set # CONFIG_FB_RADEON_OLD is not set # CONFIG_FB_RADEON is not set # CONFIG_FB_ATY128 is not set # CONFIG_FB_ATY is not set # CONFIG_FB_SIS is not set # CONFIG_FB_NEOMAGIC is not set # CONFIG_FB_KYRO is not set # CONFIG_FB_3DFX is not set # CONFIG_FB_VOODOO1 is not set # CONFIG_FB_TRIDENT is not set # CONFIG_FB_VIRTUAL is not set # # Console display driver support # CONFIG_VGA_CONSOLE=y # CONFIG_MDA_CONSOLE is not set CONFIG_DUMMY_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE=y CONFIG_PCI_CONSOLE=y CONFIG_FONTS=y # CONFIG_FONT_8x8 is not set # CONFIG_FONT_8x16 is not set # CONFIG_FONT_6x11 is not set # CONFIG_FONT_PEARL_8x8 is not set # CONFIG_FONT_ACORN_8x8 is not set # CONFIG_FONT_MINI_4x6 is not set CONFIG_FONT_SUN8x16=y # CONFIG_FONT_SUN12x22 is not set # # Logo configuration # CONFIG_LOGO=y # CONFIG_LOGO_LINUX_MONO is not set # CONFIG_LOGO_LINUX_VGA16 is not set CONFIG_LOGO_LINUX_CLUT224=y # # Sound # CONFIG_SOUND=y # # Advanced Linux Sound Architecture # CONFIG_SND=y CONFIG_SND_TIMER=y CONFIG_SND_PCM=y CONFIG_SND_RAWMIDI=y CONFIG_SND_SEQUENCER=y # CONFIG_SND_SEQ_DUMMY is not set # CONFIG_SND_MIXER_OSS is not set # CONFIG_SND_PCM_OSS is not set # CONFIG_SND_SEQUENCER_OSS is not set CONFIG_SND_RTCTIMER=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set # # Generic devices # CONFIG_SND_MPU401_UART=y # CONFIG_SND_DUMMY is not set # CONFIG_SND_VIRMIDI is not set # CONFIG_SND_MTPAV is not set # CONFIG_SND_SERIAL_U16550 is not set # CONFIG_SND_MPU401 is not set # # PCI devices # CONFIG_SND_AC97_CODEC=y # CONFIG_SND_ALI5451 is not set # CONFIG_SND_ATIIXP is not set # CONFIG_SND_AU8810 is not set # CONFIG_SND_AU8820 is not set # CONFIG_SND_AU8830 is not set # CONFIG_SND_AZT3328 is not set # CONFIG_SND_BT87X is not set # CONFIG_SND_CS46XX is not set # CONFIG_SND_CS4281 is not set # CONFIG_SND_EMU10K1 is not set # CONFIG_SND_KORG1212 is not set # CONFIG_SND_MIXART is not set # CONFIG_SND_NM256 is not set # CONFIG_SND_RME32 is not set # CONFIG_SND_RME96 is not set # CONFIG_SND_RME9652 is not set # CONFIG_SND_HDSP is not set # CONFIG_SND_TRIDENT is not set # CONFIG_SND_YMFPCI is not set # CONFIG_SND_ALS4000 is not set # CONFIG_SND_CMIPCI is not set # CONFIG_SND_ENS1370 is not set # CONFIG_SND_ENS1371 is not set # CONFIG_SND_ES1938 is not set # CONFIG_SND_ES1968 is not set # CONFIG_SND_MAESTRO3 is not set # CONFIG_SND_FM801 is not set # CONFIG_SND_ICE1712 is not set # CONFIG_SND_ICE1724 is not set CONFIG_SND_INTEL8X0=y # CONFIG_SND_INTEL8X0M is not set # CONFIG_SND_SONICVIBES is not set # CONFIG_SND_VIA82XX is not set # CONFIG_SND_VX222 is not set # # ALSA USB devices # CONFIG_SND_USB_AUDIO=y # # Open Sound System # # CONFIG_SOUND_PRIME is not set # # USB support # CONFIG_USB=y # CONFIG_USB_DEBUG is not set # # Miscellaneous USB options # CONFIG_USB_DEVICEFS=y # CONFIG_USB_BANDWIDTH is not set # CONFIG_USB_DYNAMIC_MINORS is not set # # USB Host Controller Drivers # CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_SPLIT_ISO=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_OHCI_HCD is not set CONFIG_USB_UHCI_HCD=y # # USB Device Class drivers # # CONFIG_USB_AUDIO is not set # CONFIG_USB_BLUETOOTH_TTY is not set # CONFIG_USB_MIDI is not set # CONFIG_USB_ACM is not set CONFIG_USB_PRINTER=y CONFIG_USB_STORAGE=y # CONFIG_USB_STORAGE_DEBUG is not set # CONFIG_USB_STORAGE_RW_DETECT is not set # CONFIG_USB_STORAGE_DATAFAB is not set # CONFIG_USB_STORAGE_FREECOM is not set # CONFIG_USB_STORAGE_ISD200 is not set # CONFIG_USB_STORAGE_DPCM is not set # CONFIG_USB_STORAGE_HP8200e is not set # CONFIG_USB_STORAGE_SDDR09 is not set # CONFIG_USB_STORAGE_SDDR55 is not set # CONFIG_USB_STORAGE_JUMPSHOT is not set # # USB Human Interface Devices (HID) # CONFIG_USB_HID=y CONFIG_USB_HIDINPUT=y # CONFIG_HID_FF is not set # CONFIG_USB_HIDDEV is not set # CONFIG_USB_AIPTEK is not set # CONFIG_USB_WACOM is not set # CONFIG_USB_KBTAB is not set # CONFIG_USB_POWERMATE is not set # CONFIG_USB_MTOUCH is not set # CONFIG_USB_EGALAX is not set # CONFIG_USB_XPAD is not set # CONFIG_USB_ATI_REMOTE is not set # # USB Imaging devices # # CONFIG_USB_MDC800 is not set # CONFIG_USB_MICROTEK is not set # CONFIG_USB_HPUSBSCSI is not set # # USB Multimedia devices # # CONFIG_USB_DABUSB is not set # # Video4Linux support is needed for USB Multimedia device support # # # USB Network adaptors # # CONFIG_USB_CATC is not set # CONFIG_USB_KAWETH is not set # CONFIG_USB_PEGASUS is not set # CONFIG_USB_RTL8150 is not set # CONFIG_USB_USBNET is not set # # USB port drivers # # CONFIG_USB_USS720 is not set # # USB Serial Converter support # CONFIG_USB_SERIAL=y # CONFIG_USB_SERIAL_DEBUG is not set CONFIG_USB_SERIAL_CONSOLE=y CONFIG_USB_SERIAL_GENERIC=y # CONFIG_USB_SERIAL_BELKIN is not set # CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set # CONFIG_USB_SERIAL_EMPEG is not set # CONFIG_USB_SERIAL_FTDI_SIO is not set # CONFIG_USB_SERIAL_VISOR is not set # CONFIG_USB_SERIAL_IPAQ is not set # CONFIG_USB_SERIAL_IR is not set # CONFIG_USB_SERIAL_EDGEPORT is not set # CONFIG_USB_SERIAL_EDGEPORT_TI is not set # CONFIG_USB_SERIAL_KEYSPAN_PDA is not set # CONFIG_USB_SERIAL_KEYSPAN is not set # CONFIG_USB_SERIAL_KLSI is not set # CONFIG_USB_SERIAL_KOBIL_SCT is not set # CONFIG_USB_SERIAL_MCT_U232 is not set CONFIG_USB_SERIAL_PL2303=y CONFIG_USB_SERIAL_SAFE=y CONFIG_USB_SERIAL_SAFE_PADDED=y # CONFIG_USB_SERIAL_CYBERJACK is not set # CONFIG_USB_SERIAL_XIRCOM is not set # CONFIG_USB_SERIAL_OMNINET is not set # # USB Miscellaneous drivers # # CONFIG_USB_EMI62 is not set # CONFIG_USB_EMI26 is not set # CONFIG_USB_TIGL is not set # CONFIG_USB_AUERSWALD is not set # CONFIG_USB_RIO500 is not set # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set # CONFIG_USB_LED is not set # CONFIG_USB_CYTHERM is not set # CONFIG_USB_PHIDGETSERVO is not set # CONFIG_USB_TEST is not set # # USB Gadget Support # # CONFIG_USB_GADGET is not set # # File systems # CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y # CONFIG_EXT2_FS_POSIX_ACL is not set CONFIG_EXT2_FS_SECURITY=y CONFIG_EXT3_FS=y CONFIG_EXT3_FS_XATTR=y # CONFIG_EXT3_FS_POSIX_ACL is not set CONFIG_EXT3_FS_SECURITY=y CONFIG_JBD=y # CONFIG_JBD_DEBUG is not set CONFIG_FS_MBCACHE=y # CONFIG_REISERFS_FS is not set # CONFIG_JFS_FS is not set # CONFIG_XFS_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set CONFIG_AUTOFS4_FS=y # # CD-ROM/DVD Filesystems # CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_ZISOFS=y CONFIG_ZISOFS_FS=y CONFIG_UDF_FS=y # # DOS/FAT/NT Filesystems # CONFIG_FAT_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_FAT_DEFAULT_CODEPAGE=437 CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" CONFIG_NTFS_FS=y # CONFIG_NTFS_DEBUG is not set # CONFIG_NTFS_RW is not set # # Pseudo filesystems # CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y # CONFIG_DEVFS_FS is not set CONFIG_DEVPTS_FS_XATTR=y CONFIG_DEVPTS_FS_SECURITY=y CONFIG_TMPFS=y # CONFIG_HUGETLBFS is not set # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # # Miscellaneous filesystems # # CONFIG_ADFS_FS is not set # CONFIG_AFFS_FS is not set # CONFIG_HFS_FS is not set # CONFIG_HFSPLUS_FS is not set # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EFS_FS is not set # CONFIG_CRAMFS is not set # CONFIG_VXFS_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set # # Network File Systems # CONFIG_NFS_FS=y CONFIG_NFS_V3=y CONFIG_NFS_V4=y # CONFIG_NFS_DIRECTIO is not set CONFIG_NFSD=y CONFIG_NFSD_V3=y CONFIG_NFSD_V4=y # CONFIG_NFSD_TCP is not set CONFIG_LOCKD=y CONFIG_LOCKD_V4=y CONFIG_EXPORTFS=y CONFIG_SUNRPC=y CONFIG_SUNRPC_GSS=y CONFIG_RPCSEC_GSS_KRB5=y CONFIG_SMB_FS=y # CONFIG_SMB_NLS_DEFAULT is not set CONFIG_CIFS=y # CONFIG_CIFS_STATS is not set # CONFIG_CIFS_POSIX is not set # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set # # Partition Types # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y # # Native Language Support # CONFIG_NLS=y CONFIG_NLS_DEFAULT="iso8859-1" CONFIG_NLS_CODEPAGE_437=y # CONFIG_NLS_CODEPAGE_737 is not set # CONFIG_NLS_CODEPAGE_775 is not set CONFIG_NLS_CODEPAGE_850=y # CONFIG_NLS_CODEPAGE_852 is not set # CONFIG_NLS_CODEPAGE_855 is not set # CONFIG_NLS_CODEPAGE_857 is not set # CONFIG_NLS_CODEPAGE_860 is not set # CONFIG_NLS_CODEPAGE_861 is not set # CONFIG_NLS_CODEPAGE_862 is not set # CONFIG_NLS_CODEPAGE_863 is not set # CONFIG_NLS_CODEPAGE_864 is not set # CONFIG_NLS_CODEPAGE_865 is not set # CONFIG_NLS_CODEPAGE_866 is not set # CONFIG_NLS_CODEPAGE_869 is not set # CONFIG_NLS_CODEPAGE_936 is not set # CONFIG_NLS_CODEPAGE_950 is not set # CONFIG_NLS_CODEPAGE_932 is not set # CONFIG_NLS_CODEPAGE_949 is not set # CONFIG_NLS_CODEPAGE_874 is not set # CONFIG_NLS_ISO8859_8 is not set # CONFIG_NLS_CODEPAGE_1250 is not set # CONFIG_NLS_CODEPAGE_1251 is not set # CONFIG_NLS_ASCII is not set CONFIG_NLS_ISO8859_1=y # CONFIG_NLS_ISO8859_2 is not set # CONFIG_NLS_ISO8859_3 is not set # CONFIG_NLS_ISO8859_4 is not set # CONFIG_NLS_ISO8859_5 is not set # CONFIG_NLS_ISO8859_6 is not set # CONFIG_NLS_ISO8859_7 is not set # CONFIG_NLS_ISO8859_9 is not set # CONFIG_NLS_ISO8859_13 is not set # CONFIG_NLS_ISO8859_14 is not set CONFIG_NLS_ISO8859_15=y # CONFIG_NLS_KOI8_R is not set # CONFIG_NLS_KOI8_U is not set CONFIG_NLS_UTF8=y # # Profiling support # # CONFIG_PROFILING is not set # # Kernel hacking # # CONFIG_DEBUG_KERNEL is not set CONFIG_EARLY_PRINTK=y # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_FRAME_POINTER is not set CONFIG_4KSTACKS=y CONFIG_X86_FIND_SMP_CONFIG=y CONFIG_X86_MPPARSE=y # # Security options # CONFIG_SECURITY=y # CONFIG_SECURITY_NETWORK is not set CONFIG_SECURITY_CAPABILITIES=y # CONFIG_SECURITY_ROOTPLUG is not set # CONFIG_SECURITY_SELINUX is not set # # Cryptographic options # CONFIG_CRYPTO=y CONFIG_CRYPTO_HMAC=y CONFIG_CRYPTO_NULL=y CONFIG_CRYPTO_MD4=y CONFIG_CRYPTO_MD5=y CONFIG_CRYPTO_SHA1=y CONFIG_CRYPTO_SHA256=y CONFIG_CRYPTO_SHA512=y CONFIG_CRYPTO_DES=y CONFIG_CRYPTO_BLOWFISH=y CONFIG_CRYPTO_TWOFISH=y CONFIG_CRYPTO_SERPENT=y CONFIG_CRYPTO_AES=y CONFIG_CRYPTO_CAST5=y CONFIG_CRYPTO_CAST6=y CONFIG_CRYPTO_ARC4=y CONFIG_CRYPTO_DEFLATE=y CONFIG_CRYPTO_MICHAEL_MIC=y CONFIG_CRYPTO_CRC32C=y CONFIG_CRYPTO_TEST=y # # Library routines # CONFIG_CRC32=y CONFIG_LIBCRC32C=y CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y CONFIG_X86_SMP=y CONFIG_X86_HT=y CONFIG_X86_BIOS_REBOOT=y CONFIG_X86_TRAMPOLINE=y CONFIG_PC=y ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-26 21:39 ` Klaus Dittrich @ 2004-07-26 22:14 ` Jan-Frode Myklebust 2004-07-27 20:43 ` Klaus Dittrich 0 siblings, 1 reply; 23+ messages in thread From: Jan-Frode Myklebust @ 2004-07-26 22:14 UTC (permalink / raw) To: Klaus Dittrich; +Cc: Andrew Morton, linux-kernel On Mon, Jul 26, 2004 at 11:39:34PM +0200, Klaus Dittrich wrote: > > > >>cat /proc/sys/vm/vfs_cache_pressure shows 100. > > What about trying to increase the vfs_cache_pressure which seemed to solve what to me looks like a similar problem: http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&safe=off&threadm=2m9Oo-Oo-17%40gated-at.bofh.it&rnum=1&prev=/groups%3Fhl%3Den%26ie%3DUTF-8%26safe%3Doff%26q%3Djan%2Bfrode%2Boom%2Bdsmc%26spell%3D1 http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&safe=off&threadm=2mdfi-3cC-11%40gated-at.bofh.it&rnum=2&prev=/groups%3Fq%3Djanfrode%2Boom%2Bdsmc%26ie%3DUTF-8%26hl%3Den%26btnG%3DGoogle%2BSearch -jf ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-26 22:14 ` Jan-Frode Myklebust @ 2004-07-27 20:43 ` Klaus Dittrich 2004-07-27 21:05 ` Klaus Dittrich 0 siblings, 1 reply; 23+ messages in thread From: Klaus Dittrich @ 2004-07-27 20:43 UTC (permalink / raw) To: Jan-Frode Myklebust; +Cc: Klaus Dittrich, Andrew Morton, linux-kernel Jan-Frode Myklebust wrote: >On Mon, Jul 26, 2004 at 11:39:34PM +0200, Klaus Dittrich wrote: > > >>>>cat /proc/sys/vm/vfs_cache_pressure shows 100. >>>> >>>> > >What about trying to increase the vfs_cache_pressure which seemed >to solve what to me looks like a similar problem: > > http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&safe=off&threadm=2m9Oo-Oo-17%40gated-at.bofh.it&rnum=1&prev=/groups%3Fhl%3Den%26ie%3DUTF-8%26safe%3Doff%26q%3Djan%2Bfrode%2Boom%2Bdsmc%26spell%3D1 > > http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&safe=off&threadm=2mdfi-3cC-11%40gated-at.bofh.it&rnum=2&prev=/groups%3Fq%3Djanfrode%2Boom%2Bdsmc%26ie%3DUTF-8%26hl%3Den%26btnG%3DGoogle%2BSearch > > > -jf > > I did a test with a value of 500. echo 500 > /proc/sys/vm/vfs_cache_pressure. The highest numbers a cat /proc/sys/fs/dentry-state then showed during a du -s were 780721 750505 45 0 0 0 The system survied. No processes were killed. With vfs_cache_pressure=100 a cat /proc/sys/fs/dentry-state showed numbers of about 1090000 before processes got killed. Hope that helps to narrow the region to look for what has changed. ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-27 20:43 ` Klaus Dittrich @ 2004-07-27 21:05 ` Klaus Dittrich 2004-07-28 1:21 ` Nick Piggin 0 siblings, 1 reply; 23+ messages in thread From: Klaus Dittrich @ 2004-07-27 21:05 UTC (permalink / raw) To: Klaus Dittrich; +Cc: Jan-Frode Myklebust, Andrew Morton, linux-kernel Klaus Dittrich wrote: > Jan-Frode Myklebust wrote: > >> On Mon, Jul 26, 2004 at 11:39:34PM +0200, Klaus Dittrich wrote: >> >> >>>>> cat /proc/sys/vm/vfs_cache_pressure shows 100. >>>>> >>>> >> >> What about trying to increase the vfs_cache_pressure which seemed >> to solve what to me looks like a similar problem: >> >> http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&safe=off&threadm=2m9Oo-Oo-17%40gated-at.bofh.it&rnum=1&prev=/groups%3Fhl%3Den%26ie%3DUTF-8%26safe%3Doff%26q%3Djan%2Bfrode%2Boom%2Bdsmc%26spell%3D1 >> >> >> http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&safe=off&threadm=2mdfi-3cC-11%40gated-at.bofh.it&rnum=2&prev=/groups%3Fq%3Djanfrode%2Boom%2Bdsmc%26ie%3DUTF-8%26hl%3Den%26btnG%3DGoogle%2BSearch >> >> >> >> -jf >> >> > I did a test with a value of 500. echo 500 > > /proc/sys/vm/vfs_cache_pressure. > > The highest numbers a cat /proc/sys/fs/dentry-state then showed during > a du -s were > 780721 750505 45 0 0 0 > > The system survied. No processes were killed. > > With vfs_cache_pressure=100 a cat /proc/sys/fs/dentry-state showed > numbers of about 1090000 before processes got killed. > > Hope that helps to narrow the region to look for what has changed. > PS. Two concurrent du -s however "kernel: Out of Memory: Killed process .." ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-27 21:05 ` Klaus Dittrich @ 2004-07-28 1:21 ` Nick Piggin 2004-07-28 15:06 ` Klaus Dittrich 0 siblings, 1 reply; 23+ messages in thread From: Nick Piggin @ 2004-07-28 1:21 UTC (permalink / raw) To: Klaus Dittrich; +Cc: Jan-Frode Myklebust, Andrew Morton, linux-kernel Klaus Dittrich wrote: > Klaus Dittrich wrote: >> I did a test with a value of 500. echo 500 > >> /proc/sys/vm/vfs_cache_pressure. >> >> The highest numbers a cat /proc/sys/fs/dentry-state then showed during >> a du -s were >> 780721 750505 45 0 0 0 >> >> The system survied. No processes were killed. >> >> With vfs_cache_pressure=100 a cat /proc/sys/fs/dentry-state showed >> numbers of about 1090000 before processes got killed. >> >> Hope that helps to narrow the region to look for what has changed. >> > PS. Two concurrent du -s however "kernel: Out of Memory: Killed process .." Your vfs_cache_pressure probably wants to be higher than 500. Make it 10000. ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-28 1:21 ` Nick Piggin @ 2004-07-28 15:06 ` Klaus Dittrich 2004-07-29 3:31 ` Nick Piggin 0 siblings, 1 reply; 23+ messages in thread From: Klaus Dittrich @ 2004-07-28 15:06 UTC (permalink / raw) To: Nick Piggin Cc: Klaus Dittrich, Jan-Frode Myklebust, Andrew Morton, linux-kernel Nick Piggin wrote: > Klaus Dittrich wrote: > >> Klaus Dittrich wrote: > > >>> I did a test with a value of 500. echo 500 > >>> /proc/sys/vm/vfs_cache_pressure. >>> >>> The highest numbers a cat /proc/sys/fs/dentry-state then showed during >>> a du -s were >>> 780721 750505 45 0 0 0 >>> >>> The system survied. No processes were killed. >>> >>> With vfs_cache_pressure=100 a cat /proc/sys/fs/dentry-state showed >>> numbers of about 1090000 before processes got killed. >>> >>> Hope that helps to narrow the region to look for what has changed. >>> >> PS. Two concurrent du -s however "kernel: Out of Memory: Killed >> process .." * >> * > > > Your vfs_cache_pressure probably wants to be higher than 500. Make it > 10000. *No problems when using 10000. But I think of this as workaround only. I have read the "Scaling dcache with RCU" article from linuxjournal.com to get some insight how things should work. Pretty complicated. I added some printk statements in dcache.c to see what functions actually get called to shink a dcache during a du -s. The only one I found is prune_dcache(). Which events should trigger the use of d_invalidate() ? ** * ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-28 15:06 ` Klaus Dittrich @ 2004-07-29 3:31 ` Nick Piggin 0 siblings, 0 replies; 23+ messages in thread From: Nick Piggin @ 2004-07-29 3:31 UTC (permalink / raw) To: Klaus Dittrich; +Cc: Jan-Frode Myklebust, Andrew Morton, linux-kernel Klaus Dittrich wrote: > Nick Piggin wrote: > >> >> Your vfs_cache_pressure probably wants to be higher than 500. Make it >> 10000. > > > *No problems when using 10000. > But I think of this as workaround only. > Yes it is just a workaround. > I have read the "Scaling dcache with RCU" article from linuxjournal.com > to get some insight how things should work. Pretty complicated. > Yes, prune_dcache is the only one called in response to memory pressure. Basically you wouldn't have to worry about dcache internals for your sort of machine. For example, RCU delayed freeing would not cause any problem. The problem has probably been triggered either by a small change in the page scanner, however the underlying problem is that the slab pressure calculation isn't ideal on highmem systems, so in vfs intensive workloads (lots of files), it is easy for ZONE_NORMAL allocations to OOM without actually scanning much slab. ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-26 15:06 Klaus Dittrich 2004-07-26 19:37 ` Andrew Morton @ 2004-07-29 21:07 ` Andrew Morton 2004-07-30 16:30 ` Marcelo Tosatti 1 sibling, 1 reply; 23+ messages in thread From: Andrew Morton @ 2004-07-29 21:07 UTC (permalink / raw) To: Klaus Dittrich; +Cc: linux-kernel kladit@t-online.de (Klaus Dittrich) wrote: > > >Can you narrow the onset of the problem down to any particular kernel > >snapshot? > > Did it and here is the answer. > > kernel-2.6.7 and bk's up to 2.6.7-bk7 survived a du -s, > kernels starting with 2.6.7-bk8 did not. I can reproduce this oom btw. Am (very, very slowly) working out what's causing it. It's unrelated to the vfs-cache-pressure patch. I'd hope to have it fixed up for 2.6.8. ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-29 21:07 ` Andrew Morton @ 2004-07-30 16:30 ` Marcelo Tosatti 2004-07-30 19:47 ` Andrew Morton 0 siblings, 1 reply; 23+ messages in thread From: Marcelo Tosatti @ 2004-07-30 16:30 UTC (permalink / raw) To: Andrew Morton; +Cc: Klaus Dittrich, linux-kernel On Thu, Jul 29, 2004 at 02:07:43PM -0700, Andrew Morton wrote: > kladit@t-online.de (Klaus Dittrich) wrote: > > > > >Can you narrow the onset of the problem down to any particular kernel > > >snapshot? > > > > Did it and here is the answer. > > > > kernel-2.6.7 and bk's up to 2.6.7-bk7 survived a du -s, > > kernels starting with 2.6.7-bk8 did not. > > I can reproduce this oom btw. Am (very, very slowly) working out what's > causing it. It's unrelated to the vfs-cache-pressure patch. I'd hope to > have it fixed up for 2.6.8. Odd, because the only thing I can see which affects dcache related code between -bk7 and -bk8 is the vfs-cache-pressure patch. What are the exact steps you're using to reproduce the leak? And where do you think the problem lies? ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-30 16:30 ` Marcelo Tosatti @ 2004-07-30 19:47 ` Andrew Morton 2004-07-31 2:01 ` Marcelo Tosatti 2004-07-31 17:23 ` Linus Torvalds 0 siblings, 2 replies; 23+ messages in thread From: Andrew Morton @ 2004-07-30 19:47 UTC (permalink / raw) To: Marcelo Tosatti; +Cc: kladit, linux-kernel Marcelo Tosatti <marcelo.tosatti@cyclades.com> wrote: > > On Thu, Jul 29, 2004 at 02:07:43PM -0700, Andrew Morton wrote: > > kladit@t-online.de (Klaus Dittrich) wrote: > > > > > > >Can you narrow the onset of the problem down to any particular kernel > > > >snapshot? > > > > > > Did it and here is the answer. > > > > > > kernel-2.6.7 and bk's up to 2.6.7-bk7 survived a du -s, > > > kernels starting with 2.6.7-bk8 did not. > > > > I can reproduce this oom btw. Am (very, very slowly) working out what's > > causing it. It's unrelated to the vfs-cache-pressure patch. I'd hope to > > have it fixed up for 2.6.8. > > Odd, because the only thing I can see which affects dcache related code > between -bk7 and -bk8 is the vfs-cache-pressure patch. It can be triggered with that patch reverted. > What are the exact steps you're using to reproduce the leak? Just a `du -s' over zillions of files on a 2G machine. > And where do you think the problem lies? Seems that we reach a state where lowmem pagecache get reclaimed faster than dcache/icache. This causes the number of pages scanned for lowmem allocations to fall. This causes less scanning of the slab and the whole thing repeats. I expect changing nr_used_zone_pages() to ignore highmem will fix it, and might be the long-term fix, too. ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-30 19:47 ` Andrew Morton @ 2004-07-31 2:01 ` Marcelo Tosatti 2004-07-31 17:23 ` Linus Torvalds 1 sibling, 0 replies; 23+ messages in thread From: Marcelo Tosatti @ 2004-07-31 2:01 UTC (permalink / raw) To: Andrew Morton; +Cc: kladit, linux-kernel On Fri, Jul 30, 2004 at 12:47:44PM -0700, Andrew Morton wrote: > Marcelo Tosatti <marcelo.tosatti@cyclades.com> wrote: > > > > On Thu, Jul 29, 2004 at 02:07:43PM -0700, Andrew Morton wrote: > > > kladit@t-online.de (Klaus Dittrich) wrote: > > > > > > > > >Can you narrow the onset of the problem down to any particular kernel > > > > >snapshot? > > > > > > > > Did it and here is the answer. > > > > > > > > kernel-2.6.7 and bk's up to 2.6.7-bk7 survived a du -s, > > > > kernels starting with 2.6.7-bk8 did not. > > > > > > I can reproduce this oom btw. Am (very, very slowly) working out what's > > > causing it. It's unrelated to the vfs-cache-pressure patch. I'd hope to > > > have it fixed up for 2.6.8. > > > > Odd, because the only thing I can see which affects dcache related code > > between -bk7 and -bk8 is the vfs-cache-pressure patch. > > It can be triggered with that patch reverted. > > > What are the exact steps you're using to reproduce the leak? > > Just a `du -s' over zillions of files on a 2G machine. > > > And where do you think the problem lies? > > Seems that we reach a state where lowmem pagecache get reclaimed faster > than dcache/icache. This causes the number of pages scanned for lowmem > allocations to fall. This causes less scanning of the slab and the whole > thing repeats. I expect changing nr_used_zone_pages() to ignore highmem > will fix it, and might be the long-term fix, too. I'll try making that change to nr_used_zone_pages() tomorrow morning and see what happens. But, why does Klaus claim he can't trigger the bug with -bk7 and only -bk8 ? ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-30 19:47 ` Andrew Morton 2004-07-31 2:01 ` Marcelo Tosatti @ 2004-07-31 17:23 ` Linus Torvalds 2004-07-31 21:39 ` Andrew Morton 1 sibling, 1 reply; 23+ messages in thread From: Linus Torvalds @ 2004-07-31 17:23 UTC (permalink / raw) To: Andrew Morton; +Cc: Marcelo Tosatti, kladit, linux-kernel On Fri, 30 Jul 2004, Andrew Morton wrote: > > Seems that we reach a state where lowmem pagecache get reclaimed faster > than dcache/icache. This causes the number of pages scanned for lowmem > allocations to fall. This causes less scanning of the slab and the whole > thing repeats. I expect changing nr_used_zone_pages() to ignore highmem > will fix it, and might be the long-term fix, too. Ouch. Indeed, looking at the usage of nr_used_zone_pages(), it looks totally broken. However, I don't think the right thing to do is to ignore the HIGHMEM zone altogether, I think it should take the list of zones being shrunk into account. Look at usage: one caller of shrink_slab() is try_to_free_pages(), and if try_to_free_pages() is called for a HIGHMEM zone, then it is _fine_ to count the HIGHMEM zone as pages, and shrink the slab memory much less aggressively. The _problem_ is when slab competes against itself (lowmem) or some other thing (inodes) that want lowmem-only memory, and then the slab shrinking really should ignore the fact that there are tons of highmem pages left. Something like this (totally untested, may not compile, you get the idea) might work. Or not. Since the _rest_ of "shrink_slab()" doesn't know about zonelists, just making the "how many pages does this zone have free" take the zonelist into account might cause other problems. Linus ----- ===== include/linux/mm.h 1.179 vs edited ===== --- 1.179/include/linux/mm.h 2004-06-27 00:19:35 -07:00 +++ edited/include/linux/mm.h 2004-07-31 10:19:25 -07:00 @@ -706,7 +706,7 @@ extern struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr); -extern unsigned int nr_used_zone_pages(void); +extern unsigned int nr_used_zone_pages(struct zone **); extern struct page * vmalloc_to_page(void *addr); extern struct page * follow_page(struct mm_struct *mm, unsigned long address, ===== mm/page_alloc.c 1.221 vs edited ===== --- 1.221/mm/page_alloc.c 2004-07-19 08:44:36 -07:00 +++ edited/mm/page_alloc.c 2004-07-31 10:18:37 -07:00 @@ -825,13 +825,15 @@ EXPORT_SYMBOL(nr_free_pages); -unsigned int nr_used_zone_pages(void) +unsigned int nr_used_zone_pages(struct zone **zones) { unsigned int pages = 0; - struct zone *zone; - for_each_zone(zone) + while (*zones) { + struct zone * zone = *zones; + zones++; pages += zone->nr_active + zone->nr_inactive; + } return pages; } ===== mm/vmscan.c 1.224 vs edited ===== --- 1.224/mm/vmscan.c 2004-06-24 01:56:14 -07:00 +++ edited/mm/vmscan.c 2004-07-31 10:20:17 -07:00 @@ -170,7 +170,7 @@ * * We do weird things to avoid (scanned*seeks*entries) overflowing 32 bits. */ -static int shrink_slab(unsigned long scanned, unsigned int gfp_mask) +static int shrink_slab(unsigned long scanned, unsigned int gfp_mask, struct zone **zones) { struct shrinker *shrinker; long pages; @@ -178,7 +178,7 @@ if (down_trylock(&shrinker_sem)) return 0; - pages = nr_used_zone_pages(); + pages = nr_used_zone_pages(zones); list_for_each_entry(shrinker, &shrinker_list, list) { unsigned long long delta; @@ -912,7 +912,7 @@ sc.nr_reclaimed = 0; sc.priority = priority; shrink_caches(zones, &sc); - shrink_slab(sc.nr_scanned, gfp_mask); + shrink_slab(sc.nr_scanned, gfp_mask, zones); if (reclaim_state) { sc.nr_reclaimed += reclaim_state->reclaimed_slab; reclaim_state->reclaimed_slab = 0; @@ -1032,6 +1032,7 @@ */ for (i = 0; i <= end_zone; i++) { struct zone *zone = pgdat->node_zones + i; + struct zone * zones[2] = { zone, NULL }; if (zone->all_unreclaimable && priority != DEF_PRIORITY) continue; @@ -1048,7 +1049,7 @@ sc.priority = priority; shrink_zone(zone, &sc); reclaim_state->reclaimed_slab = 0; - shrink_slab(sc.nr_scanned, GFP_KERNEL); + shrink_slab(sc.nr_scanned, GFP_KERNEL, zones); sc.nr_reclaimed += reclaim_state->reclaimed_slab; total_reclaimed += sc.nr_reclaimed; if (zone->all_unreclaimable) ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-31 17:23 ` Linus Torvalds @ 2004-07-31 21:39 ` Andrew Morton 2004-08-03 6:55 ` Nick Piggin 0 siblings, 1 reply; 23+ messages in thread From: Andrew Morton @ 2004-07-31 21:39 UTC (permalink / raw) To: Linus Torvalds; +Cc: marcelo.tosatti, kladit, linux-kernel Linus Torvalds <torvalds@osdl.org> wrote: > > Something like this (totally untested, may not compile, you get the idea) > might work. Or not. Since the _rest_ of "shrink_slab()" doesn't know about > zonelists, just making the "how many pages does this zone have free" take > the zonelist into account might cause other problems. No, I think it'll be OK. Problems in this area tend to be subtle, and take time to appear. But I think this one is pretty safe. The logic in shrink_slab tries to balance the proportion of slab which it scans against the proportion of pagecache which the caller scanned. Problem is that with a large number of highmem LRU pages and a small number of lowmem LRU pages, the amount of pagecache scanning appears to be very small, so we don't push slab hard enough. THe patch changes things so that for, say, a GFP_KERNEL allocation attempt we only consider ZONE_NORMAL and ZONE_DMA when calculating "what proportion of the LRU did the caller just scan". This will have the effect of shrinking slab harder in response to GFP_KERNEL allocations than for GFP_HIGHMEM allocations. Signed-off-by: Andrew Morton <akpm@osdl.org> --- 25-akpm/include/linux/mm.h | 2 -- 25-akpm/mm/page_alloc.c | 11 ----------- 25-akpm/mm/vmscan.c | 32 +++++++++++++++++++++++--------- 3 files changed, 23 insertions(+), 22 deletions(-) diff -puN include/linux/mm.h~slab-shrinking-fix include/linux/mm.h --- 25/include/linux/mm.h~slab-shrinking-fix 2004-07-31 14:01:11.021081264 -0700 +++ 25-akpm/include/linux/mm.h 2004-07-31 14:02:25.500758632 -0700 @@ -706,8 +706,6 @@ static inline unsigned long vma_pages(st extern struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr); -extern unsigned int nr_used_zone_pages(void); - extern struct page * vmalloc_to_page(void *addr); extern struct page * follow_page(struct mm_struct *mm, unsigned long address, int write); diff -puN mm/page_alloc.c~slab-shrinking-fix mm/page_alloc.c --- 25/mm/page_alloc.c~slab-shrinking-fix 2004-07-31 14:01:11.022081112 -0700 +++ 25-akpm/mm/page_alloc.c 2004-07-31 14:02:21.469371496 -0700 @@ -829,17 +829,6 @@ unsigned int nr_free_pages(void) EXPORT_SYMBOL(nr_free_pages); -unsigned int nr_used_zone_pages(void) -{ - unsigned int pages = 0; - struct zone *zone; - - for_each_zone(zone) - pages += zone->nr_active + zone->nr_inactive; - - return pages; -} - #ifdef CONFIG_NUMA unsigned int nr_free_pages_pgdat(pg_data_t *pgdat) { diff -puN mm/vmscan.c~slab-shrinking-fix mm/vmscan.c --- 25/mm/vmscan.c~slab-shrinking-fix 2004-07-31 14:01:11.024080808 -0700 +++ 25-akpm/mm/vmscan.c 2004-07-31 14:35:31.185888608 -0700 @@ -169,22 +169,25 @@ EXPORT_SYMBOL(remove_shrinker); * slab to avoid swapping. * * We do weird things to avoid (scanned*seeks*entries) overflowing 32 bits. + * + * `lru_pages' represents the number of on-LRU pages in all the zones which + * are eligible for the caller's allocation attempt. It is used for balancing + * slab reclaim versus page reclaim. */ -static int shrink_slab(unsigned long scanned, unsigned int gfp_mask) +static int shrink_slab(unsigned long scanned, unsigned int gfp_mask, + unsigned long lru_pages) { struct shrinker *shrinker; - long pages; if (down_trylock(&shrinker_sem)) return 0; - pages = nr_used_zone_pages(); list_for_each_entry(shrinker, &shrinker_list, list) { unsigned long long delta; delta = (4 * scanned) / shrinker->seeks; delta *= (*shrinker->shrinker)(0, gfp_mask); - do_div(delta, pages + 1); + do_div(delta, lru_pages + 1); shrinker->nr += delta; if (shrinker->nr < 0) shrinker->nr = LONG_MAX; /* It wrapped! */ @@ -896,6 +899,7 @@ int try_to_free_pages(struct zone **zone int total_scanned = 0, total_reclaimed = 0; struct reclaim_state *reclaim_state = current->reclaim_state; struct scan_control sc; + unsigned long lru_pages = 0; int i; sc.gfp_mask = gfp_mask; @@ -903,8 +907,12 @@ int try_to_free_pages(struct zone **zone inc_page_state(allocstall); - for (i = 0; zones[i] != 0; i++) - zones[i]->temp_priority = DEF_PRIORITY; + for (i = 0; zones[i] != NULL; i++) { + struct zone *zone = zones[i]; + + zone->temp_priority = DEF_PRIORITY; + lru_pages += zone->nr_active + zone->nr_inactive; + } for (priority = DEF_PRIORITY; priority >= 0; priority--) { sc.nr_mapped = read_page_state(nr_mapped); @@ -912,7 +920,7 @@ int try_to_free_pages(struct zone **zone sc.nr_reclaimed = 0; sc.priority = priority; shrink_caches(zones, &sc); - shrink_slab(sc.nr_scanned, gfp_mask); + shrink_slab(sc.nr_scanned, gfp_mask, lru_pages); if (reclaim_state) { sc.nr_reclaimed += reclaim_state->reclaimed_slab; reclaim_state->reclaimed_slab = 0; @@ -997,7 +1005,7 @@ static int balance_pgdat(pg_data_t *pgda for (priority = DEF_PRIORITY; priority >= 0; priority--) { int all_zones_ok = 1; int end_zone = 0; /* Inclusive. 0 = ZONE_DMA */ - + unsigned long lru_pages = 0; if (nr_pages == 0) { /* @@ -1021,6 +1029,12 @@ static int balance_pgdat(pg_data_t *pgda end_zone = pgdat->nr_zones - 1; } scan: + for (i = 0; i <= end_zone; i++) { + struct zone *zone = pgdat->node_zones + i; + + lru_pages += zone->nr_active + zone->nr_inactive; + } + /* * Now scan the zone in the dma->highmem direction, stopping * at the last zone which needs scanning. @@ -1048,7 +1062,7 @@ scan: sc.priority = priority; shrink_zone(zone, &sc); reclaim_state->reclaimed_slab = 0; - shrink_slab(sc.nr_scanned, GFP_KERNEL); + shrink_slab(sc.nr_scanned, GFP_KERNEL, lru_pages); sc.nr_reclaimed += reclaim_state->reclaimed_slab; total_reclaimed += sc.nr_reclaimed; if (zone->all_unreclaimable) _ ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 2004-07-31 21:39 ` Andrew Morton @ 2004-08-03 6:55 ` Nick Piggin 0 siblings, 0 replies; 23+ messages in thread From: Nick Piggin @ 2004-08-03 6:55 UTC (permalink / raw) To: Andrew Morton; +Cc: Linus Torvalds, marcelo.tosatti, kladit, linux-kernel Andrew Morton wrote: > Linus Torvalds <torvalds@osdl.org> wrote: > >> Something like this (totally untested, may not compile, you get the idea) >> might work. Or not. Since the _rest_ of "shrink_slab()" doesn't know about >> zonelists, just making the "how many pages does this zone have free" take >> the zonelist into account might cause other problems. > > > No, I think it'll be OK. Problems in this area tend to be subtle, and take > time to appear. But I think this one is pretty safe. > Yeah it is better than what we had before. It now has failure cases going the other way, but I like this for a non intrusive fix. ^ permalink raw reply [flat|nested] 23+ messages in thread
* Re: dentry cache leak? Re: rsync out of memory 2.6.8-rc2 @ 2004-08-01 9:47 Klaus Dittrich 0 siblings, 0 replies; 23+ messages in thread From: Klaus Dittrich @ 2004-08-01 9:47 UTC (permalink / raw) To: linux mailing-list I applied your patch to 2.6.8-rc-bk10 and the system survied three concurrent du -s started each started with a delay. Conspicuous is that memory usage (xosview) does not go above 1.5GB now. Here is a snapshoot of cat/proc/vmstat taken at a time when memory usage has stagnated. -- Klaus nr_dirty 1294 nr_writeback 0 nr_unstable 0 nr_page_table_pages 425 nr_mapped 38811 nr_slab 211923 pgpgin 1157363 pgpgout 150328 pswpin 0 pswpout 0 pgalloc_high 295581 pgalloc_normal 716183 pgalloc_dma 5455 pgfree 1150071 pgactivate 115758 pgdeactivate 74788 pgfault 263245 pgmajfault 1441 pgrefill_high 0 pgrefill_normal 74461 pgrefill_dma 327 pgsteal_high 0 pgsteal_normal 97886 pgsteal_dma 527 pgscan_kswapd_high 0 pgscan_kswapd_normal 92301 pgscan_kswapd_dma 490 pgscan_direct_high 0 pgscan_direct_normal 22869 pgscan_direct_dma 180 pginodesteal 22206 slabs_scanned 6414979 kswapd_steal 79035 kswapd_inodesteal 32158 pageoutrun 535 allocstall 562 pgrotated 5286 ^ permalink raw reply [flat|nested] 23+ messages in thread
end of thread, other threads:[~2004-08-03 6:59 UTC | newest]
Thread overview: 23+ messages (download: mbox.gz follow: Atom feed
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2004-07-19 9:19 rsync out of memory 2.6.8-rc2 Klaus Dittrich
2004-07-19 11:20 ` dentry cache leak? " bert hubert
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2004-07-19 12:56 ` Klaus Dittrich
2004-07-26 1:06 ` Andrew Morton
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2004-07-26 15:06 Klaus Dittrich
2004-07-26 19:37 ` Andrew Morton
2004-07-26 20:02 ` Klaus Dittrich
2004-07-26 20:38 ` Andrew Morton
2004-07-26 21:39 ` Klaus Dittrich
2004-07-26 22:14 ` Jan-Frode Myklebust
2004-07-27 20:43 ` Klaus Dittrich
2004-07-27 21:05 ` Klaus Dittrich
2004-07-28 1:21 ` Nick Piggin
2004-07-28 15:06 ` Klaus Dittrich
2004-07-29 3:31 ` Nick Piggin
2004-07-29 21:07 ` Andrew Morton
2004-07-30 16:30 ` Marcelo Tosatti
2004-07-30 19:47 ` Andrew Morton
2004-07-31 2:01 ` Marcelo Tosatti
2004-07-31 17:23 ` Linus Torvalds
2004-07-31 21:39 ` Andrew Morton
2004-08-03 6:55 ` Nick Piggin
2004-08-01 9:47 Klaus Dittrich
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