Re: OOM killer on idle machine
From: Dhaval Giani
Date: Tue Feb 05 2008 - 06:08:48 EST
On Tue, Feb 05, 2008 at 11:04:23AM +0100, Michael Bussmann wrote:
> Hi,
>
> I'm currently experiencing strange OOM errors on a machine with 8 GB RAM,
> 16 GB swap (Xeon 5150). After about 5 days uptime the box starts to
> spit out OOM messages.
>
> The box is mostly idle, so I haven't got any idea what is consuming memory.
> Looking at the output of free it seems that the box has plenty of memory
> left, so I'd be thankful if anybody could shed some light on this issue.
>
> Thanks in advance for any information.
>
> Cheers,
> MB
>
> PS: Please CC me in replies
>
> Kernel: 2.6.23.14 (also happened with 2.6.23.9 (self-compiled), both with
> SLUB) and linux-image-2.6.22-3-686-bigmem (Debian kernel).
> RAM: 8 GB
> HDD: 2 x 320 GB SATA AHCI (Software RAID-1)
> 6 x 320 GB SATA 3Ware 9650SE-8LPML (3w_9xxx driver)
>
> Output of free during OOM-situation:
> total used free shared buffers cached
> Mem: 8300144 910360 7389784 0 10588 39460
> -/+ buffers/cache: 860312 7439832
> Swap: 16777208 0 16777208
>
> First OOM message in syslog:
>
> Feb 4 16:15:15 kernel: df_inode invoked oom-killer: gfp_mask=0xd0, order=0, oomkilladj=0
> Feb 4 16:15:16 kernel: [<c01408cb>] out_of_memory+0x69/0x18e
> Feb 4 16:15:16 kernel: [<c0141eca>] __alloc_pages+0x1fc/0x283
> Feb 4 16:15:16 kernel: [<c0141f8a>] __get_free_pages+0x39/0x47
> Feb 4 16:15:16 kernel: [<c011bbc8>] copy_process+0x89/0x1051
> Feb 4 16:15:16 kernel: df_inode invoked oom-killer: gfp_mask=0x40d0, order=1, oomkilladj=0
> Feb 4 16:15:16 kernel: [<c01408cb>] out_of_memory+0x69/0x18e
> Feb 4 16:15:16 kernel: [<c0141eca>] __alloc_pages+0x1fc/0x283
> Feb 4 16:15:16 kernel: [<c0156ef4>] __slab_alloc+0x178/0x475
> Feb 4 16:15:16 kernel: [<c0157307>] kmem_cache_alloc+0x3c/0x83
> Feb 4 16:15:16 kernel: [<c0115087>] pgd_alloc+0x58/0xb9
> Feb 4 16:15:16 kernel: [<c0115087>] pgd_alloc+0x58/0xb9
> Feb 4 16:15:16 kernel: [<c011b9dd>] mm_init+0xa1/0xc3
> Feb 4 16:15:16 kernel: [<c015d6d6>] bprm_mm_init+0xf/0x14f
> Feb 4 16:15:16 kernel: [<c015e4f2>] do_execve+0x62/0x16a
> Feb 4 16:15:16 kernel: [<c01011a8>] sys_execve+0x2f/0x7b
> Feb 4 16:15:16 kernel: [<c010285a>] sysenter_past_esp+0x5f/0x85
> Feb 4 16:15:16 kernel: [<c0330000>] gss_refresh+0xca/0x103
> Feb 4 16:15:16 kernel: =======================
> Feb 4 16:15:16 kernel: Mem-info:
> Feb 4 16:15:16 kernel: DMA per-cpu:
> Feb 4 16:15:16 kernel: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: CPU 2: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: CPU 3: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: Normal per-cpu:
> Feb 4 16:15:16 kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 25 Cold: hi: 62, btch: 15 usd: 55
> Feb 4 16:15:16 kernel: CPU 1: Hot: hi: 186, btch: 31 usd: 28 Cold: hi: 62, btch: 15 usd: 52
> Feb 4 16:15:16 kernel: CPU 2: Hot: hi: 186, btch: 31 usd: 31 Cold: hi: 62, btch: 15 usd: 57
> Feb 4 16:15:16 kernel: CPU 3: Hot: hi: 186, btch: 31 usd: 36 Cold: hi: 62, btch: 15 usd: 52
> Feb 4 16:15:16 kernel: HighMem per-cpu:
> Feb 4 16:15:16 kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 74 Cold: hi: 62, btch: 15 usd: 6
> Feb 4 16:15:16 kernel: CPU 1: Hot: hi: 186, btch: 31 usd: 144 Cold: hi: 62, btch: 15 usd: 13
> Feb 4 16:15:16 kernel: CPU 2: Hot: hi: 186, btch: 31 usd: 90 Cold: hi: 62, btch: 15 usd: 10
> Feb 4 16:15:16 kernel: CPU 3: Hot: hi: 186, btch: 31 usd: 132 Cold: hi: 62, btch: 15 usd: 12
> Feb 4 16:15:16 kernel: Active:23868 inactive:10724 dirty:2 writeback:0 unstable:0
> Feb 4 16:15:16 kernel: free:1832856 slab:4611 mapped:5566 pagetables:427 bounce:0
> Feb 4 16:15:16 kernel: DMA free:3540kB min:68kB low:84kB high:100kB active:0kB inactive:0kB present:16256kB pages_scanned:0 all_unreclaimable? yes
> Feb 4 16:15:16 kernel: lowmem_reserve[]: 0 873 9636 9636
> Feb 4 16:15:16 kernel: Normal free:3692kB min:3744kB low:4680kB high:5616kB active:7584kB inactive:2960kB present:894080kB pages_scanned:20511 all_unreclaimable? yes
> Feb 4 16:15:16 kernel: lowmem_reserve[]: 0 0 70104 70104
> Feb 4 16:15:16 kernel: HighMem free:7324192kB min:512kB low:9912kB high:19316kB active:87888kB inactive:39936kB present:8973312kB pages_scanned:0 all_unreclaimable? no
> Feb 4 16:15:16 kernel: lowmem_reserve[]: 0 0 0 0
> Feb 4 16:15:16 kernel: DMA: 3*4kB 0*8kB 2*16kB 1*32kB 0*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 3532kB
> Feb 4 16:15:16 kernel: Normal: 1*4kB 21*8kB 28*16kB 4*32kB 3*64kB 1*128kB 1*256kB 1*512kB 0*1024kB 1*2048kB 0*4096kB = 3884kB
> Feb 4 16:15:16 kernel: HighMem: 3671*4kB 3883*8kB 3149*16kB 2519*32kB 1749*64kB 930*128kB 487*256kB 159*512kB 221*1024kB 146*2048kB 1510*4096kB = 7324068kB
> Feb 4 16:15:16 kernel: Swap cache: add 0, delete 0, find 0/0, race 0+0
> Feb 4 16:15:16 kernel: Free swap = 16777208kB
> Feb 4 16:15:16 kernel: Total swap = 16777208kB
> Feb 4 16:15:16 kernel: Free swap: 16777208kB
> Feb 4 16:15:16 kernel: [<c011cdb9>] do_fork+0x9a/0x17a
> Feb 4 16:15:16 kernel: [<c0100cb5>] sys_clone+0x36/0x3b
> Feb 4 16:15:16 kernel: [<c010285a>] sysenter_past_esp+0x5f/0x85
> Feb 4 16:15:16 kernel: =======================
> Feb 4 16:15:16 kernel: Mem-info:
> Feb 4 16:15:16 kernel: DMA per-cpu:
> Feb 4 16:15:16 kernel: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: CPU 2: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: CPU 3: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: Normal per-cpu:
> Feb 4 16:15:16 kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 25 Cold: hi: 62, btch: 15 usd: 55
> Feb 4 16:15:16 kernel: CPU 1: Hot: hi: 186, btch: 31 usd: 28 Cold: hi: 62, btch: 15 usd: 52
> Feb 4 16:15:16 kernel: CPU 2: Hot: hi: 186, btch: 31 usd: 31 Cold: hi: 62, btch: 15 usd: 57
> Feb 4 16:15:16 kernel: CPU 3: Hot: hi: 186, btch: 31 usd: 36 Cold: hi: 62, btch: 15 usd: 52
> Feb 4 16:15:16 kernel: HighMem per-cpu:
> Feb 4 16:15:16 kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 74 Cold: hi: 62, btch: 15 usd: 6
> Feb 4 16:15:16 kernel: CPU 1: Hot: hi: 186, btch: 31 usd: 144 Cold: hi: 62, btch: 15 usd: 13
> Feb 4 16:15:16 kernel: CPU 2: Hot: hi: 186, btch: 31 usd: 90 Cold: hi: 62, btch: 15 usd: 10
> Feb 4 16:15:16 kernel: CPU 3: Hot: hi: 186, btch: 31 usd: 132 Cold: hi: 62, btch: 15 usd: 12
> Feb 4 16:15:16 kernel: Active:23868 inactive:10724 dirty:2 writeback:0 unstable:0
> Feb 4 16:15:16 kernel: free:1832856 slab:4611 mapped:5566 pagetables:427 bounce:0
> Feb 4 16:15:16 kernel: DMA free:3540kB min:68kB low:84kB high:100kB active:0kB inactive:0kB present:16256kB pages_scanned:0 all_unreclaimable? yes
> Feb 4 16:15:16 kernel: lowmem_reserve[]: 0 873 9636 9636
> Feb 4 16:15:16 kernel: Normal free:3692kB min:3744kB low:4680kB high:5616kB active:7584kB inactive:2960kB present:894080kB pages_scanned:20511 all_unreclaimable? yes
> Feb 4 16:15:16 kernel: lowmem_reserve[]: 0 0 70104 70104
> Feb 4 16:15:16 kernel: HighMem free:7324192kB min:512kB low:9912kB high:19316kB active:87888kB inactive:39936kB present:8973312kB pages_scanned:0 all_unreclaimable? no
> Feb 4 16:15:16 kernel: lowmem_reserve[]: 0 0 0 0
> Feb 4 16:15:16 kernel: DMA: 3*4kB 0*8kB 2*16kB 1*32kB 0*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 3532kB
> Feb 4 16:15:16 kernel: Normal: 1*4kB 21*8kB 28*16kB 4*32kB 3*64kB 1*128kB 1*256kB 1*512kB 0*1024kB 1*2048kB 0*4096kB = 3884kB
> Feb 4 16:15:16 kernel: HighMem: 3671*4kB 3883*8kB 3149*16kB 2519*32kB 1749*64kB 930*128kB 487*256kB 159*512kB 221*1024kB 146*2048kB 1510*4096kB = 7324068kB
> Feb 4 16:15:16 kernel: Swap cache: add 0, delete 0, find 0/0, race 0+0
> Feb 4 16:15:16 kernel: Free swap = 16777208kB
> Feb 4 16:15:16 kernel: Total swap = 16777208kB
> Feb 4 16:15:16 kernel: Free swap: 16777208kB
> Feb 4 16:15:16 kernel: 2490368 pages of RAM
> Feb 4 16:15:16 kernel: 2260992 pages of HIGHMEM
> Feb 4 16:15:16 kernel: 415332 reserved pages
> Feb 4 16:15:16 kernel: 24136 pages shared
> Feb 4 16:15:16 kernel: 0 pages swap cached
> Feb 4 16:15:16 kernel: 2 pages dirty
> Feb 4 16:15:16 kernel: 0 pages writeback
> Feb 4 16:15:16 kernel: 5566 pages mapped
> Feb 4 16:15:16 kernel: 4611 pages slab
> Feb 4 16:15:16 kernel: 427 pages pagetables
>
> Feb 4 16:15:16 kernel: Out of memory: kill process 2933 (sh) score 32755 or a child
> Feb 4 16:15:16 kernel: Killed process 2934 (java)
> Feb 4 16:15:16 kernel: 2490368 pages of RAM
> Feb 4 16:15:16 kernel: 2260992 pages of HIGHMEM
> Feb 4 16:15:16 kernel: 415332 reserved pages
> Feb 4 16:15:16 kernel: 24136 pages shared
> Feb 4 16:15:16 kernel: 0 pages swap cached
> Feb 4 16:15:16 kernel: 2 pages dirty
> Feb 4 16:15:16 kernel: 0 pages writeback
> Feb 4 16:15:16 kernel: 5566 pages mapped
> Feb 4 16:15:16 kernel: 4611 pages slab
> Feb 4 16:15:16 kernel: 427 pages pagetables
>
> Feb 4 16:15:16 kernel: Out of memory: kill process 13047 (slapd) score 8193 or a child
> Feb 4 16:15:16 kernel: Killed process 13047 (slapd)
> Feb 4 16:15:16 kernel: df_inode invoked oom-killer: gfp_mask=0xd0, order=0, oomkilladj=0
> Feb 4 16:15:16 kernel: [<c01408cb>] out_of_memory+0x69/0x18e
> Feb 4 16:15:16 kernel: [<c0141eca>] __alloc_pages+0x1fc/0x283
> Feb 4 16:15:16 kernel: [<c0141f8a>] __get_free_pages+0x39/0x47
> Feb 4 16:15:16 kernel: [<c011bbc8>] copy_process+0x89/0x1051
> Feb 4 16:15:16 kernel: [<c011cdb9>] do_fork+0x9a/0x17a
> Feb 4 16:15:16 kernel: [<c0100cb5>] sys_clone+0x36/0x3b
> Feb 4 16:15:16 kernel: [<c010285a>] sysenter_past_esp+0x5f/0x85
> Feb 4 16:15:16 kernel: =======================
> Feb 4 16:15:16 kernel: Mem-info:
> Feb 4 16:15:16 kernel: DMA per-cpu:
> Feb 4 16:15:16 kernel: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: CPU 2: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: CPU 3: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:15:16 kernel: Normal per-cpu:
> Feb 4 16:15:16 kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 25 Cold: hi: 62, btch: 15 usd: 55
> Feb 4 16:15:16 kernel: CPU 1: Hot: hi: 186, btch: 31 usd: 28 Cold: hi: 62, btch: 15 usd: 52
> Feb 4 16:15:16 kernel: CPU 2: Hot: hi: 186, btch: 31 usd: 33 Cold: hi: 62, btch: 15 usd: 57
> Feb 4 16:15:16 kernel: CPU 3: Hot: hi: 186, btch: 31 usd: 36 Cold: hi: 62, btch: 15 usd: 52
> Feb 4 16:15:16 kernel: HighMem per-cpu:
> Feb 4 16:15:16 kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 74 Cold: hi: 62, btch: 15 usd: 6
> Feb 4 16:15:16 kernel: CPU 1: Hot: hi: 186, btch: 31 usd: 144 Cold: hi: 62, btch: 15 usd: 13
> Feb 4 16:15:16 kernel: CPU 2: Hot: hi: 186, btch: 31 usd: 179 Cold: hi: 62, btch: 15 usd: 10
> Feb 4 16:15:16 kernel: CPU 3: Hot: hi: 186, btch: 31 usd: 132 Cold: hi: 62, btch: 15 usd: 12
> Feb 4 16:15:16 kernel: Active:23211 inactive:10724 dirty:2 writeback:0 unstable:0
> Feb 4 16:15:16 kernel: free:1833444 slab:4611 mapped:5201 pagetables:427 bounce:0
> Feb 4 16:15:16 kernel: DMA free:3540kB min:68kB low:84kB high:100kB active:0kB inactive:0kB present:16256kB pages_scanned:0 all_unreclaimable? yes
> Feb 4 16:15:16 kernel: lowmem_reserve[]: 0 873 9636 9636
> Feb 4 16:15:16 kernel: Normal free:3692kB min:3744kB low:4680kB high:5616kB active:7584kB inactive:2960kB present:894080kB pages_scanned:20511 all_unreclaimable? yes
> Feb 4 16:15:16 kernel: lowmem_reserve[]: 0 0 70104 70104
> Feb 4 16:15:16 kernel: HighMem free:7326544kB min:512kB low:9912kB high:19316kB active:85260kB inactive:39936kB present:8973312kB pages_scanned:0 all_unreclaimable? no
> Feb 4 16:15:16 kernel: lowmem_reserve[]: 0 0 0 0
> Feb 4 16:15:16 kernel: DMA: 3*4kB 0*8kB 2*16kB 1*32kB 0*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 3532kB
> Feb 4 16:15:16 kernel: Normal: 1*4kB 21*8kB 28*16kB 4*32kB 3*64kB 1*128kB 1*256kB 1*512kB 0*1024kB 1*2048kB 0*4096kB = 3884kB
> Feb 4 16:15:16 kernel: HighMem: 3864*4kB 3907*8kB 3148*16kB 2503*32kB 1737*64kB 939*128kB 489*256kB 159*512kB 220*1024kB 147*2048kB 1510*4096kB = 7326424kB
> Feb 4 16:15:16 kernel: Swap cache: add 0, delete 0, find 0/0, race 0+0
> Feb 4 16:15:16 kernel: Free swap = 16777208kB
> Feb 4 16:15:16 kernel: Total swap = 16777208kB
> Feb 4 16:15:16 kernel: Free swap: 16777208kB
>
> SysRQ+m shows:
>
> Feb 4 16:35:56 kernel: SysRq : Show Memory
> Feb 4 16:35:56 kernel: Mem-info:
> Feb 4 16:35:56 kernel: DMA per-cpu:
> Feb 4 16:35:56 kernel: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:35:56 kernel: CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Feb 4 16:35:56 kernel: CPU 2: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Feb 4 16:35:56 kernel: CPU 3: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> Feb 4 16:35:56 kernel: Normal per-cpu:
> Feb 4 16:35:56 kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 26 Cold: hi: 62, btch: 15 usd: 51
> Feb 4 16:35:56 kernel: CPU 1: Hot: hi: 186, btch: 31 usd: 10 Cold: hi: 62, btch: 15 usd: 47
> Feb 4 16:35:56 kernel: CPU 2: Hot: hi: 186, btch: 31 usd: 25 Cold: hi: 62, btch: 15 usd: 50
> Feb 4 16:35:56 kernel: CPU 3: Hot: hi: 186, btch: 31 usd: 7 Cold: hi: 62, btch: 15 usd: 59
> Feb 4 16:35:56 kernel: HighMem per-cpu:
> Feb 4 16:35:56 kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 6 Cold: hi: 62, btch: 15 usd: 6
> Feb 4 16:35:56 kernel: CPU 1: Hot: hi: 186, btch: 31 usd: 15 Cold: hi: 62, btch: 15 usd: 14
> Feb 4 16:35:56 kernel: CPU 2: Hot: hi: 186, btch: 31 usd: 98 Cold: hi: 62, btch: 15 usd: 4
> Feb 4 16:35:56 kernel: CPU 3: Hot: hi: 186, btch: 31 usd: 47 Cold: hi: 62, btch: 15 usd: 3
> Feb 4 16:35:56 kernel: Active:13145 inactive:7163 dirty:0 writeback:0 unstable:0
> Feb 4 16:35:56 kernel: free:1847537 slab:4426 mapped:3787 pagetables:360 bounce:0
> Feb 4 16:35:56 kernel: DMA free:3560kB min:68kB low:84kB high:100kB active:8kB inactive:0kB present:16256kB pages_scanned:108 all_unreclaimable? yes
> Feb 4 16:35:56 kernel: lowmem_reserve[]: 0 873 9636 9636
> Feb 4 16:35:56 kernel: Normal free:3980kB min:3744kB low:4680kB high:5616kB active:5396kB inactive:5008kB present:894080kB pages_scanned:20561 all_unreclaimable? yes
> Feb 4 16:35:56 kernel: lowmem_reserve[]: 0 0 70104 70104
> Feb 4 16:35:56 kernel: HighMem free:7382608kB min:512kB low:9912kB high:19316kB active:47176kB inactive:23644kB present:8973312kB pages_scanned:0 all_unreclaimable? no
> Feb 4 16:35:56 kernel: lowmem_reserve[]: 0 0 0 0
> Feb 4 16:35:56 kernel: DMA: 2*4kB 4*8kB 2*16kB 1*32kB 0*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 3560kB
> Feb 4 16:35:56 kernel: Normal: 75*4kB 10*8kB 21*16kB 4*32kB 3*64kB 1*128kB 1*256kB 1*512kB 0*1024kB 1*2048kB 0*4096kB = 3980kB
> Feb 4 16:35:56 kernel: HighMem: 1036*4kB 2516*8kB 1914*16kB 1571*32kB 1176*64kB 785*128kB 533*256kB 336*512kB 230*1024kB 148*2048kB 1527*4096kB = 7382608kB
> Feb 4 16:35:56 kernel: Swap cache: add 0, delete 0, find 0/0, race 0+0
> Feb 4 16:35:56 kernel: Free swap = 16777208kB
> Feb 4 16:35:56 kernel: Total swap = 16777208kB
> Feb 4 16:35:56 kernel: Free swap: 16777208kB
> Feb 4 16:35:56 kernel: 2490368 pages of RAM
> Feb 4 16:35:56 kernel: 2260992 pages of HIGHMEM
> Feb 4 16:35:56 kernel: 415332 reserved pages
> Feb 4 16:35:56 kernel: 25392 pages shared
> Feb 4 16:35:56 kernel: 0 pages swap cached
> Feb 4 16:35:56 kernel: 0 pages dirty
> Feb 4 16:35:56 kernel: 0 pages writeback
> Feb 4 16:35:56 kernel: 3787 pages mapped
> Feb 4 16:35:56 kernel: 4426 pages slab
> Feb 4 16:35:56 kernel: 360 pages pagetables
>
Looks like quicklists again. Can you try patching your kernel with the
following patch. It should be there in the next stable release.
commit 96990a4ae979df9e235d01097d6175759331e88c
Author: Christoph Lameter <clameter@xxxxxxx>
Date: Mon Jan 14 00:55:14 2008 -0800
quicklists: Only consider memory that can be used with GFP_KERNEL
Quicklists calculates the size of the quicklists based on the number of
free pages. This must be the number of free pages that can be allocated
with GFP_KERNEL. node_page_state() includes the pages in ZONE_HIGHMEM and
ZONE_MOVABLE which may lead the quicklists to become too large causing OOM.
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Tested-by: Dhaval Giani <dhaval@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
diff --git a/mm/quicklist.c b/mm/quicklist.c
index ae8189c..3f703f7 100644
--- a/mm/quicklist.c
+++ b/mm/quicklist.c
@@ -26,9 +26,17 @@ DEFINE_PER_CPU(struct quicklist, quicklist)[CONFIG_NR_QUICK];
static unsigned long max_pages(unsigned long min_pages)
{
unsigned long node_free_pages, max;
+ struct zone *zones = NODE_DATA(numa_node_id())->node_zones;
+
+ node_free_pages =
+#ifdef CONFIG_ZONE_DMA
+ zone_page_state(&zones[ZONE_DMA], NR_FREE_PAGES) +
+#endif
+#ifdef CONFIG_ZONE_DMA32
+ zone_page_state(&zones[ZONE_DMA32], NR_FREE_PAGES) +
+#endif
+ zone_page_state(&zones[ZONE_NORMAL], NR_FREE_PAGES);
- node_free_pages = node_page_state(numa_node_id(),
- NR_FREE_PAGES);
max = node_free_pages / FRACTION_OF_NODE_MEM;
return max(max, min_pages);
}
Thanks,
--
regards,
Dhaval
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