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Subject[SysRq-M] Memory error in 2.4.19-pre9-ac3
Date
Hi,

I am running 2.4.19-pre9-ac3 on a dual PIII (SMP, 1.25 GB memory,
devfs, ext3, ALSA-CVS, lm-sensors-2.6.3) and I am getting memory
errors after a few days of uptime. This error has happened after only
4 days, for example. I have managed to obtain "SysRq-M" output before
the box had a chance to oops or crash, but I don't know how useful
this might be. Does anyone have any other suggestions for tracking
this problem down? I am already compiling with CONFIG_DEBUG_HIGHMEM.

Cheers,
Chris

Jun 9 19:59:27 twopit kernel: Trying to vfree() nonexistent vm area (f8872000)
Jun 9 20:27:31 twopit kernel: SysRq : Show Memory
Jun 9 20:27:31 twopit kernel: Mem-info:
Jun 9 20:27:31 twopit kernel: Free pages: 140936kB ( 2272kB HighMem)
Jun 9 20:27:31 twopit kernel: Zone:DMA freepages: 13552kB min: 4224kB low: 4352kB high: 4480kB
Jun 9 20:27:31 twopit kernel: Zone:Normal freepages:125112kB min: 3576kB low: 16636kB high: 23676kB
Jun 9 20:27:31 twopit kernel: Zone:HighMem freepages: 2272kB min: 1020kB low: 6136kB high: 9204kB
Jun 9 20:27:31 twopit kernel: Free pages: 140936kB ( 2272kB HighMem)
Jun 9 20:27:31 twopit kernel: ( Active: 94312, inactive_dirty: 167988, inactive_clean: 4989, free: 35234 )
Jun 9 20:27:31 twopit kernel: 100*4kB 98*8kB 89*16kB 62*32kB 32*64kB 12*128kB 1*256kB 0*512kB 1*1024kB 2*2048kB = 13552kB)
Jun 9 20:27:31 twopit kernel: 1038*4kB 1158*8kB 317*16kB 214*32kB 133*64kB 83*128kB 27*256kB 24*512kB 14*1024kB 23*2048kB = 125112kB)
Jun 9 20:27:31 twopit kernel: 16*4kB 94*8kB 15*16kB 2*32kB 2*64kB 2*128kB 1*256kB 1*512kB 0*1024kB 0*2048kB = 2272kB)
Jun 9 20:27:31 twopit kernel: Swap cache: add 0, delete 0, find 0/0, race 0+0
Jun 9 20:27:31 twopit kernel: Free swap: 498004kB
Jun 9 20:27:31 twopit kernel: 327648 pages of RAM
Jun 9 20:27:31 twopit kernel: 98272 pages of HIGHMEM
Jun 9 20:27:31 twopit kernel: 5096 reserved pages
Jun 9 20:27:31 twopit kernel: 244072 pages shared
Jun 9 20:27:31 twopit kernel: 0 pages swap cached
Jun 9 20:27:31 twopit kernel: 0 pages in page table cache
Jun 9 20:27:31 twopit kernel: Buffer memory: 62560kB
Jun 9 20:27:31 twopit kernel: Cache memory: 877552kB
Jun 9 20:27:31 twopit kernel: CLEAN: 182972 buffers, 731888 kbyte, 184 used (last=182969), 0 locked, 0 dirty
Jun 9 20:27:31 twopit kernel: DIRTY: 4 buffers, 16 kbyte, 4 used (last=4), 0 locked, 4 dirty

Jun 9 20:28:52 twopit kernel: SysRq : Show Memory
Jun 9 20:28:52 twopit kernel: Mem-info:
Jun 9 20:28:52 twopit kernel: Free pages: 216512kB ( 67528kB HighMem)
Jun 9 20:28:52 twopit kernel: Zone:DMA freepages: 13552kB min: 4224kB low: 4352kB high: 4480kB
Jun 9 20:28:52 twopit kernel: Zone:Normal freepages:135432kB min: 3576kB low: 16636kB high: 23676kB
Jun 9 20:28:52 twopit kernel: Zone:HighMem freepages: 67528kB min: 1020kB low: 6136kB high: 9204kB
Jun 9 20:28:52 twopit kernel: Free pages: 216512kB ( 67528kB HighMem)
Jun 9 20:28:52 twopit kernel: ( Active: 77325, inactive_dirty: 167921, inactive_clean: 3476, free: 54128 )
Jun 9 20:28:52 twopit kernel: 100*4kB 98*8kB 89*16kB 62*32kB 32*64kB 12*128kB 1*256kB 0*512kB 1*1024kB 2*2048kB = 13552kB)
Jun 9 20:28:52 twopit kernel: 2*4kB 1034*8kB 521*16kB 219*32kB 133*64kB 87*128kB 28*256kB 26*512kB 16*1024kB 27*2048kB = 135432kB)
Jun 9 20:28:52 twopit kernel: 1562*4kB 1872*8kB 786*16kB 298*32kB 126*64kB 44*128kB 19*256kB 9*512kB 1*1024kB 0*2048kB = 67528kB)
Jun 9 20:28:52 twopit kernel: Swap cache: add 0, delete 0, find 0/0, race 0+0
Jun 9 20:28:52 twopit kernel: Free swap: 498004kB
Jun 9 20:28:52 twopit kernel: 327648 pages of RAM
Jun 9 20:28:52 twopit kernel: 98272 pages of HIGHMEM
Jun 9 20:28:52 twopit kernel: 5096 reserved pages
Jun 9 20:28:52 twopit kernel: 229908 pages shared
Jun 9 20:28:52 twopit kernel: 0 pages swap cached
Jun 9 20:28:52 twopit kernel: 0 pages in page table cache
Jun 9 20:28:52 twopit kernel: Buffer memory: 62572kB
Jun 9 20:28:52 twopit kernel: Cache memory: 876624kB
Jun 9 20:28:52 twopit kernel: CLEAN: 182906 buffers, 731624 kbyte, 179 used (last=182847), 0 locked, 0 dirty
Jun 9 20:28:52 twopit kernel: DIRTY: 13 buffers, 52 kbyte, 8 used (last=11), 0 locked, 13 dirty
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