Re: 2.6.1 IO lockup on SMP systems

[Sergey S. Kostyliov]

On Thursday 26 February 2004 23:03, Andrew Morton wrote:
<cut>
> OK, thanks.  Is there any possibility that you can run without iptables for
> a while, see if that fixes it?

I recompiled 2.6.3 without iptables support, unfortunately it doesn't
solve the problem, machine still hangs.

1) sysrq-M:

SysRq : Show Memory
Mem-info:
DMA per-cpu:
cpu 0 hot: low 2, high 6, batch 1
cpu 0 cold: low 0, high 2, batch 1
cpu 1 hot: low 2, high 6, batch 1
cpu 1 cold: low 0, high 2, batch 1
Normal per-cpu:
cpu 0 hot: low 32, high 96, batch 16
cpu 0 cold: low 0, high 32, batch 16
cpu 1 hot: low 32, high 96, batch 16
cpu 1 cold: low 0, high 32, batch 16
HighMem per-cpu:
cpu 0 hot: low 32, high 96, batch 16
cpu 0 cold: low 0, high 32, batch 16
cpu 1 hot: low 32, high 96, batch 16
cpu 1 cold: low 0, high 32, batch 16

Free pages:        3276kB (512kB HighMem)
Active:820 inactive:195 dirty:0 writeback:0 unstable:0 free:819
DMA free:1348kB min:16kB low:32kB high:48kB active:316kB inactive:0kB
Normal free:1416kB min:936kB low:1872kB high:2808kB active:1388kB inactive:348kB
HighMem free:512kB min:512kB low:1024kB high:1536kB active:1604kB inactive:404kB
DMA: 75*4kB 69*8kB 21*16kB 3*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1348kB
Normal: 98*4kB 20*8kB 0*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 1416kB
HighMem: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 2*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 512kB
Swap cache: add 342862, delete 342774, find 15349/23980, race 14+29
Free swap:       2473044kB
524288 pages of RAM
294912 pages of HIGHMEM
5814 reserved pages
899 pages shared
89 pages swap cached

2) /proc/meminfo before a lockup
Sat Feb 28 06:42:33 MSK 2004
MemTotal:      2073896 kB
MemFree:          3452 kB
Buffers:          2240 kB
Cached:          29648 kB
SwapCached:      21084 kB
Active:         627896 kB
Inactive:        17340 kB
HighTotal:     1179648 kB
HighFree:          576 kB
LowTotal:       894248 kB
LowFree:          2876 kB
SwapTotal:     3583968 kB
SwapFree:      3095996 kB
Dirty:               0 kB
Writeback:       14104 kB
Mapped:         625540 kB
Slab:            19044 kB
Committed_AS:  1767368 kB
PageTables:       4316 kB
VmallocTotal:   114680 kB
VmallocUsed:      7448 kB
VmallocChunk:   107232 kB

-- 
                   Best regards,
                   Sergey S. Kostyliov <rathamahata@xxxxxxx>
                   Public PGP key: http://sysadminday.org.ru/rathamahata.asc
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