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Message-ID: <BKEKJNIHLJDCFGDBOHGMGEPDDDAA.abum@aftek.com> Date: Mon, 24 Jul 2006 15:14:39 +0530 From: "Abu M. Muttalib" <abum@...ek.com> To: "Chase Venters" <chase.venters@...entec.com> Cc: "Robin Holt" <holt@....com>, "Alan Cox" <alan@...rguk.ukuu.org.uk>, <nickpiggin@...oo.com.au>, "Robert Hancock" <hancockr@...w.ca>, <kernelnewbies@...linux.org>, <linux-newbie@...r.kernel.org>, <linux-kernel@...r.kernel.org>, "linux-mm" <linux-mm@...ck.org> Subject: RE: Commenting out out_of_memory() function in __alloc_pages() Hi, In the same context I want to know whether kernel 2.6.13 broken? I got oom, and as per the documentation and code of out_of_memory, all the processes, which share the same memory address as the process chosen to be killed, i.e. threads, will be killed. But in my case its not the case always. At times the process chosen, "Angelia", is killed will all its threads but at other times, only some of the threads get killed and the print from oom killer (function out_of_memory) comes repeatedly but no process is killed. Why its so? Anticipation and regards, Abu. ---------------------------------------------------------------------------- ---------------------------------------------------------------- oom-killer: gfp_mask=0x201d0, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:1 Normal per-cpu: empty HighMem per-cpu: empty Free pages: 712kB (0kB HighMem) Active:1359 inactive:122 dirty:0 writeback:0 unstable:0 free:178 slab:469 mapped:1244 pagetables:452 DMA free:712kB min:512kB low:640kB high:768kB active:5436kB inactive:488kB present:16384kB pages_scanned:5261 all_unreclaimable? no lowmem_reserve[]: 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 48*4kB 7*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB = 712kB Normal: empty HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap = 0kB Total swap = 0kB Free swap: 0kB 4096 pages of RAM 285 free pages 631 reserved pages 469 slab pages 950 pages shared 0 pages swap cached Out of Memory: Killed process 1137 (Angelia). oom-killer: gfp_mask=0x201d2, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:1 Normal per-cpu: empty HighMem per-cpu: empty Free pages: 712kB (0kB HighMem) Active:1308 inactive:173 dirty:0 writeback:0 unstable:0 free:178 slab:469 mapped:1244 pagetables:452 DMA free:712kB min:512kB low:640kB high:768kB active:5232kB inactive:692kB present:16384kB pages_scanned:7971 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 48*4kB 7*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB = 712kB Normal: empty HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap = 0kB Total swap = 0kB Free swap: 0kB 4096 pages of RAM 285 free pages 631 reserved pages 469 slab pages 950 pages shared 0 pages swap cached oom-killer: gfp_mask=0x201d2, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:1 Normal per-cpu: empty HighMem per-cpu: empty Free pages: 712kB (0kB HighMem) Active:1308 inactive:173 dirty:0 writeback:0 unstable:0 free:178 slab:469 mapped:1244 pagetables:452 DMA free:712kB min:512kB low:640kB high:768kB active:5232kB inactive:692kB present:16384kB pages_scanned:7971 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 48*4kB 7*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB = 712kB Normal: empty HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap = 0kB Total swap = 0kB Free swap: 0kB 4096 pages of RAM 285 free pages 631 reserved pages 469 slab pages 950 pages shared 0 pages swap cached oom-killer: gfp_mask=0x201d2, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:0 Normal per-cpu: empty HighMem per-cpu: empty Free pages: 512kB (0kB HighMem) Active:1314 inactive:232 dirty:0 writeback:0 unstable:0 free:128 slab:470 mapped:1250 pagetables:452 DMA free:512kB min:512kB low:640kB high:768kB active:5256kB inactive:928kB present:16384kB pages_scanned:7971 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 0*4kB 6*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB = 512kB Normal: empty HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap = 0kB Total swap = 0kB Free swap: 0kB 4096 pages of RAM 234 free pages 631 reserved pages 470 slab pages 989 pages shared 0 pages swap cached oom-killer: gfp_mask=0x201d2, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:0 Normal per-cpu: empty HighMem per-cpu: empty Free pages: 512kB (0kB HighMem) Active:1314 inactive:232 dirty:0 writeback:0 unstable:0 free:128 slab:470 mapped:1250 pagetables:452 DMA free:512kB min:512kB low:640kB high:768kB active:5256kB inactive:928kB present:16384kB pages_scanned:7971 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 0*4kB 6*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB = 512kB Normal: empty HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap = 0kB Total swap = 0kB Free swap: 0kB 4096 pages of RAM 234 free pages 631 reserved pages 470 slab pages 989 pages shared 0 pages swap cached oom-killer: gfp_mask=0x201d2, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:0 Normal per-cpu: empty HighMem per-cpu: empty Free pages: 512kB (0kB HighMem) Active:1314 inactive:232 dirty:0 writeback:0 unstable:0 free:128 slab:470 mapped:1250 pagetables:452 DMA free:512kB min:512kB low:640kB high:768kB active:5256kB inactive:928kB present:16384kB pages_scanned:7971 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 0*4kB 6*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB = 512kB Normal: empty HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap = 0kB Total swap = 0kB Free swap: 0kB 4096 pages of RAM 234 free pages 631 reserved pages 470 slab pages 989 pages shared 0 pages swap cached oom-killer: gfp_mask=0x201d2, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:0 Normal per-cpu: empty HighMem per-cpu: empty Free pages: 512kB (0kB HighMem) Active:1314 inactive:232 dirty:0 writeback:0 unstable:0 free:128 slab:470 mapped:1250 pagetables:452 DMA free:512kB min:512kB low:640kB high:768kB active:5256kB inactive:928kB present:16384kB pages_scanned:7971 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 0*4kB 6*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB = 512kB Normal: empty HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap = 0kB Total swap = 0kB Free swap: 0kB 4096 pages of RAM 234 free pages 631 reserved pages 470 slab pages 989 pages shared 0 pages swap cached oom-killer: gfp_mask=0x201d2, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:0 Normal per-cpu: empty HighMem per-cpu: empty Free pages: 512kB (0kB HighMem) Active:1314 inactive:232 dirty:0 writeback:0 unstable:0 free:128 slab:470 mapped:1250 pagetables:452 DMA free:512kB min:512kB low:640kB high:768kB active:5256kB inactive:928kB present:16384kB pages_scanned:7971 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 0*4kB 6*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB = 512kB Normal: empty HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap = 0kB Total swap = 0kB Free swap: 0kB 4096 pages of RAM 234 free pages 631 reserved pages 470 slab pages 989 pages shared 0 pages swap cached oom-killer: gfp_mask=0x201d2, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:0 Normal per-cpu: empty HighMem per-cpu: empty Free pages: 512kB (0kB HighMem) Active:1347 inactive:203 dirty:0 writeback:0 unstable:0 free:128 slab:470 mapped:1250 pagetables:452 DMA free:512kB min:512kB low:640kB high:768kB active:5388kB inactive:812kB present:16384kB pages_scanned:8037 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 0*4kB 6*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB = 512kB Normal: empty HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap = 0kB Total swap = 0kB Free swap: 0kB 4096 pages of RAM 234 free pages 631 reserved pages 470 slab pages 985 pages shared 0 pages swap cached oom-killer: gfp_mask=0x201d2, order=0 Mem-info: DMA per-cpu: cpu 0 hot: low 2, high 6, batch 1 used:2 cpu 0 cold: low 0, high 2, batch 1 used:0 Normal per-cpu: empty HighMem per-cpu: empty Free pages: 512kB (0kB HighMem) Active:1347 inactive:203 dirty:0 writeback:0 unstable:0 free:128 slab:470 mapped:1250 pagetables:452 DMA free:512kB min:512kB low:640kB high:768kB active:5388kB inactive:812kB present:16384kB pages_scanned:8037 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 DMA: 0*4kB 6*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB = 512kB Normal: empty HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap = 0kB Total swap = 0kB Free swap: 0kB 4096 pages of RAM 234 free pages 631 reserved pages 470 slab pages 985 pages shared 0 pages swap cached ---------------------------------------------------------------------------- ---------------------------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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