Messages in this thread | | | Subject | [BUG] 2.4.17 kills processes in shrink_cache | From | "Francois-Xavier 'FiX' KOWALSKI" <> | Date | 03 Feb 2002 14:05:03 +0100 |
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Hello kernel maintainers,
1st, please Cc me in reply.
I encounter the following kernel error using stock kernel.org 2.4.17:
kernel BUG at vmscan.c:360! invalid operand: 0000 CPU: 0 EIP: 0010:[shrink_cache+206/764] Not tainted EIP: 0010:[<c01293f2>] Not tainted EFLAGS: 00010282 eax: 0000001c ebx: c106cf9c ecx: 00000001 edx: 000026da esi: c106cf80 edi: 0000000b ebp: 0000022e esp: c1171f2c ds: 0018 es: 0018 ss: 0018 Process kswapd (pid: 5, stackpage=c1171000) Stack: c0216359 00000168 c11030b0 c1170000 0000003a 000001d0 c02548c8 c11030b0 c3603d80 c02546a0 00000000 00000020 000001d0 00000006 00000020 c0129752 00000006 0000002e c02548c8 00000006 000001d0 c02548c8 00000000 c01297b4 Call Trace: [shrink_caches+78/128] [try_to_free_pages+48/76] [kswapd_balance_pgdat+69/144] [kswapd_balance+18/44] [kswapd+149/176] Call Trace: [<c0129752>] [<c01297b4>] [<c0129845>] [<c01298a2>] [<c01299b9>] [kswapd+0/176] [_stext+0/40] [kernel_thread+38/48] [kswapd+0/176] [<c0129924>] [<c0105000>] [<c010567a>] [<c0129924>]
Code: 0f 0b 5a 59 8b 03 8b 53 04 89 50 04 89 02 a1 40 0f 2b c0 89 <7>PPP: VJ decompression error
When this error occur, it happens very quickly on many more processes (a totoal of 20 process, both kernel & user), killing them all, with the same "kernel BUG" prefix. Of course, the machine ends-up in a very bad state & I have to use the magic SysRq to sync it & reboot it.
Looking on various linux-kernel ML archives, I found that the VM is having some troubles, but no failure with the same backtrace as the one I have, whereas I always have exactly the same one, at least on the 2 lowest levels:
[shrink_caches+78/128] [try_to_free_pages+48/76] differences from here: [balance_classzone+102/576] [__alloc_pages+258/348] [read_swap_cache_async+92/152] [swapin_readahead+55/68] [do_swap_page+43/220] [handle_mm_fault+107/192] [set_termios+368/380] [do_page_fault+363/1140] [tty_check_change+63/120]
My box is a K6 200 with 64Mb cache, ~800Mb swap. It is my mail,news & web proxy. It also does IP masquerading.
Anything else I can provide to you?
-- François-Xavier 'FiX' KOWALSKI
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