Something is really wrong with page alloc on this one. Compiled 2.6.19-rc6-rt5 with the one patch to page_alloc.c as posted on the list here.
Kernel uses around 50% mem and 30% swap without doing anything. I get a lot of these: X invoked oom-killer: gfp_mask=0xd0, order=0, oomkilladj=0 [<c0148426>] out_of_memory+0x176/0x1d0 [<c0149dc6>] __alloc_pages+0x286/0x2f0 [<c0149e76>] __get_free_pages+0x46/0x60 [<c01749e0>] __pollwait+0xb0/0x100 [<c04e92f6>] unix_poll+0xc6/0xd0 [<c0477c03>] sock_poll+0x23/0x30 [<c0174038>] do_select+0x288/0x4c0 [<c0174930>] __pollwait+0x0/0x100 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0174493>] core_sys_select+0x223/0x360 [<c04eed09>] __schedule+0x2e9/0x6b0 [<c0108732>] convert_fxsr_from_user+0x22/0xf0 [<c0174b2f>] sys_select+0xff/0x1e0 [<c0121e1b>] sys_gettimeofday+0x3b/0x90 [<c01030e5>] sysenter_past_esp+0x56/0x79 ======================= Mem-info: DMA per-cpu: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Normal per-cpu: CPU 0: Hot: hi: 186, btch: 31 usd: 31 Cold: hi: 62, btch: 15 usd: 58 HighMem per-cpu: CPU 0: Hot: hi: 186, btch: 31 usd: 66 Cold: hi: 62, btch: 15 usd: 14 Active:111463 inactive:36109 dirty:0 writeback:0 unstable:0 free:4018 slab:163934 mapped:26114 pagetables:874 DMA free:3560kB min:68kB low:84kB high:100kB active:396kB inactive:356kB present:16256kB pages_scanned:1370 all_unreclaimable? yes lowmem_reserve[]: 0 873 1254 Normal free:3720kB min:3744kB low:4680kB high:5616kB active:111304kB inactive:108296kB present:894080kB pages_scanned:339028 all_unreclaimable? yes lowmem_reserve[]: 0 0 3047 HighMem free:8792kB min:380kB low:788kB high:1196kB active:334152kB inactive:35784kB present:390084kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 0*4kB 1*8kB 0*16kB 1*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 3560kB Normal: 0*4kB 5*8kB 0*16kB 1*32kB 1*64kB 0*128kB 0*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3720kB HighMem: 924*4kB 517*8kB 40*16kB 2*32kB 0*64kB 0*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8792kB Swap cache: add 107141, delete 56933, find 4493/5856, race 0+0 Free swap = 113440kB Total swap = 488336kB Free swap: 113440kB 327664 pages of RAM 98288 pages of HIGHMEM 4383 reserved pages 94253 pages shared 50208 pages swap cached 0 pages dirty 0 pages writeback 26114 pages mapped 163934 pages slab 874 pages pagetables 327664 pages of RAM 98288 pages of HIGHMEM 4383 reserved pages 94253 pages shared 50208 pages swap cached 0 pages dirty 0 pages writeback 26114 pages mapped 163934 pages slab 874 pages pagetables audacious invoked oom-killer: gfp_mask=0xd0, order=0, oomkilladj=0 [<c0148426>] out_of_memory+0x176/0x1d0 [<c0149dc6>] __alloc_pages+0x286/0x2f0 [<c016205e>] cache_alloc_refill+0x30e/0x5d0 [<c0161d47>] kmem_cache_alloc+0x57/0x60 [<c0477d29>] sock_alloc_inode+0x19/0x60 [<c017b219>] alloc_inode+0x19/0x190 [<c0166d45>] fget_light+0x85/0xa0 [<c017c066>] new_inode+0x16/0x90 [<c0478bf4>] sock_alloc+0x14/0x70 [<c047a446>] sys_accept+0x56/0x270 [<c0102a12>] do_notify_resume+0x402/0x750 [<c0108732>] convert_fxsr_from_user+0x22/0xf0 [<c047a731>] sys_socketcall+0xd1/0x280 [<c01030e5>] sysenter_past_esp+0x56/0x79 ======================= Mem-info: DMA per-cpu: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Normal per-cpu: CPU 0: Hot: hi: 186, btch: 31 usd: 31 Cold: hi: 62, btch: 15 usd: 58 HighMem per-cpu: CPU 0: Hot: hi: 186, btch: 31 usd: 66 Cold: hi: 62, btch: 15 usd: 14 Active:111494 inactive:36078 dirty:0 writeback:0 unstable:0 free:4018 slab:163934 mapped:26114 pagetables:874 DMA free:3560kB min:68kB low:84kB high:100kB active:396kB inactive:356kB present:16256kB pages_scanned:1370 all_unreclaimable? yes lowmem_reserve[]: 0 873 1254 Normal free:3720kB min:3744kB low:4680kB high:5616kB active:111420kB inactive:108180kB present:894080kB pages_scanned:339127 all_unreclaimable? yes lowmem_reserve[]: 0 0 3047 HighMem free:8792kB min:380kB low:788kB high:1196kB active:334160kB inactive:35776kB present:390084kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 0*4kB 1*8kB 0*16kB 1*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 3560kB Normal: 0*4kB 5*8kB 0*16kB 1*32kB 1*64kB 0*128kB 0*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 3720kB HighMem: 924*4kB 517*8kB 40*16kB 2*32kB 0*64kB 0*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8792kB Swap cache: add 107141, delete 56933, find 4493/5856, race 0+0 Free swap = 113440kB Total swap = 488336kB Free swap: 113440kB X invoked oom-killer: gfp_mask=0xd0, order=0, oomkilladj=0 [<c0148426>] out_of_memory+0x176/0x1d0 [<c0149dc6>] __alloc_pages+0x286/0x2f0 [<c0149e76>] __get_free_pages+0x46/0x60 [<c01749e0>] __pollwait+0xb0/0x100 [<c04e92f6>] unix_poll+0xc6/0xd0 [<c0477c03>] sock_poll+0x23/0x30 [<c0174038>] do_select+0x288/0x4c0 [<c0174930>] __pollwait+0x0/0x100 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0118db0>] default_wake_function+0x0/0x20 [<c0174493>] core_sys_select+0x223/0x360 [<c04eed09>] __schedule+0x2e9/0x6b0 [<c0108732>] convert_fxsr_from_user+0x22/0xf0 [<c0174b2f>] sys_select+0xff/0x1e0 [<c0121e1b>] sys_gettimeofday+0x3b/0x90 [<c01030e5>] sysenter_past_esp+0x56/0x79 ======================= ... ... Out of Memory: Kill process 13677 (kdeinit) score 320232 and children. Out of memory: Killed process 13691 (kio_file). Out of Memory: Kill process 13677 (kdeinit) score 317057 and children. Out of memory: Killed process 13727 (gxine). Out of Memory: Kill process 11641 (mozilla-launche) score 184632 and children. Out of memory: Killed process 11650 (firefox-bin). Out of Memory: Kill process 9293 (apache2) score 102567 and children. Out of memory: Killed process 9294 (apache2). Out of Memory: Kill process 9293 (apache2) score 102420 and children. Out of memory: Killed process 9389 (apache2). - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/