Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | Date | Sun, 21 Dec 2003 18:45:36 -0200 (BRST) | From | Marcelo Tosatti <> | Subject | Re: lot of VM problem with 2.4.23 |
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On Sun, 21 Dec 2003, Octave wrote:
> > Octave, > > > > Can you please "echo 1 > /proc/sys/vm_gfp_debug" (to turn VM debugging on) > > and rerun the tests which crash the box. > > > > Also run "vmstat 5" in the background and save that to a file. > > > > Marcelo, > > I got this kernel panic: > > Dec 21 20:04:34 stock kernel: e9f01e50 c012e1d8 000001d2 08451094 00000001 e7493ea0 0000040e 00000000 > Dec 21 20:04:34 stock kernel: 00000018 00000002 c029e998 c029ea94 00000000 000001d2 00000000 c012dd80 > Dec 21 20:04:34 stock kernel: 00104025 c01225a3 e7493ea0 08451094 00000001 e9efec60 f7ec5380 c01226bf > Dec 21 20:04:34 stock kernel: Call Trace: [<c012e1d8>] [<c012dd80>] [<c01225a3>] [<c01226bf>] [<c01228e8>] > Dec 21 20:04:34 stock kernel: [<c0111707>] [<c011157c>] [<c0123db0>] [<c0122d85>] [<c0106fa0>] > Dec 21 20:04:52 stock kernel: f7313e18 c012e1d8 000001d2 f770c184 00000020 f7f0ffe0 0000040e 00000000 > Dec 21 20:04:52 stock kernel: 00000018 00000002 c029e998 c029ea94 00000000 000001d2 00000000 c012dd80 > Dec 21 20:04:52 stock kernel: 00000012 c0124e80 00000007 00000020 0000004a f717e920 f717e920 c0124efe > Dec 21 20:04:52 stock kernel: Call Trace: [<c012e1d8>] [<c012dd80>] [<c0124e80>] [<c0124efe>] [<c0126793>] > Dec 21 20:04:52 stock kernel: [<c01226e5>] [<c01228e8>] [<c0111707>] [<c011157c>] [<c019047c>] [<c0135190>] > Dec 21 20:04:52 stock kernel: [<c0106fa0>] > Dec 21 20:05:01 stock kernel: dba23e50 c012e1d8 000001d2 094de03c 00000001 e6461500 0000040e 00000000 > Dec 21 20:05:01 stock kernel: 00000018 00000002 c029e998 c029ea94 00000000 000001d2 00000000 c012dd80 > Dec 21 20:05:01 stock kernel: 00104025 c01225a3 e6461500 094de03c 00000001 c23eea80 c10e6f90 c01226bf > Dec 21 20:05:01 stock kernel: Call Trace: [<c012e1d8>] [<c012dd80>] [<c01225a3>] [<c01226bf>] [<c01228e8>] > Dec 21 20:05:01 stock kernel: [<c0111707>] [<c011157c>] [<c0123db0>] [<c0122d85>] [<c0106fa0>] > Dec 21 20:05:42 stock kernel: c8525e50 c012e1d8 000001d2 08cb90f4 00000001 e14a2f20 0000040e 00000000 > Dec 21 20:05:42 stock kernel: 00000018 00000002 c029e998 c029ea94 00000000 000001d2 00000000 c012dd80 > Dec 21 20:05:42 stock kernel: 00104025 c01225a3 e14a2f20 08cb90f4 00000001 df9fc420 c138dbc0 c01226bf > Dec 21 20:05:42 stock kernel: Call Trace: [<c012e1d8>] [<c012dd80>] [<c01225a3>] [<c01226bf>] [<c01228e8>] > Dec 21 20:05:42 stock kernel: [<c0111707>] [<c011157c>] [<c0123db0>] [<c0122d85>] [<c0106fa0>] > Dec 21 20:05:42 stock kernel: d70ebedc c012e1d8 000001d2 00000000 00000000 f71aa544 00000414 00000000 > Dec 21 20:05:42 stock kernel: 00000018 00000002 c029e998 c029ea94 00000000 000001d2 00000000 c012dd80 > Dec 21 20:05:42 stock kernel: 00000000 c012595a 00000000 ffffffea f71b0ba0 00000000 f7fb29cc 00001000 > Dec 21 20:05:42 stock kernel: Call Trace: [<c012e1d8>] [<c012dd80>] [<c012595a>] [<c0125f1a>] [<c0125d9c>] > Dec 21 20:05:42 stock kernel: [<c0135126>] [<c0106eb7>] > Dec 21 20:05:42 stock kernel: e3e97edc c012e1d8 000001d2 00000000 00000000 f71aa544 00000414 00000000 > Dec 21 20:05:42 stock kernel: 00000018 00000002 c029e998 c029ea94 00000000 000001d2 00000000 c012dd80 > Dec 21 20:05:42 stock kernel: 00000000 c012595a 00000000 ffffffea f6ee63c0 00000000 f7fb31f4 00001000 > Dec 21 20:05:42 stock kernel: Call Trace: [<c012e1d8>] [<c012dd80>] [<c012595a>] [<c0125f1a>] [<c0125d9c>] > Dec 21 20:05:42 stock kernel: [<c0135126>] [<c0106eb7>] > Warning (Oops_read): Code line not seen, dumping what data is available
Octave,
This is not a kernel panic, its the VM debugging output.
Can you please apply the attached patch on top of 2.4.23 and rerun the test with "echo 1 > /proc/sys/vm_gfp_debug" ?
It will printout the number of available swap pages when processes get killed.
Thanks
> Trace; c012e1d8 <__alloc_pages+2a4/2b0> > Trace; c012dd80 <_alloc_pages+18/1c> > Trace; c01225a3 <do_anonymous_page+3b/124> > Trace; c01226bf <do_no_page+33/200> > Trace; c01228e8 <handle_mm_fault+5c/b8> > Trace; c0111707 <do_page_fault+18b/4cd> > Trace; c011157c <do_page_fault+0/4cd> > Trace; c0123db0 <do_brk+130/230> > Trace; c0122d85 <sys_brk+c1/f0> > Trace; c0106fa0 <error_code+34/3c> > Trace; c012e1d8 <__alloc_pages+2a4/2b0> > Trace; c012dd80 <_alloc_pages+18/1c> > Trace; c0124e80 <page_cache_read+7c/d0> > Trace; c0124efe <read_cluster_nonblocking+2a/40> > Trace; c0126793 <filemap_nopage+13f/23c> > Trace; c01226e5 <do_no_page+59/200> > Trace; c01228e8 <handle_mm_fault+5c/b8> > Trace; c0111707 <do_page_fault+18b/4cd> > Trace; c011157c <do_page_fault+0/4cd> > Trace; c019047c <tty_read+dc/124> > Trace; c0135190 <sys_read+100/108> > Trace; c0106fa0 <error_code+34/3c> > Trace; c012e1d8 <__alloc_pages+2a4/2b0> > Trace; c012dd80 <_alloc_pages+18/1c> > Trace; c01225a3 <do_anonymous_page+3b/124> > Trace; c01226bf <do_no_page+33/200> > Trace; c01228e8 <handle_mm_fault+5c/b8> > Trace; c0111707 <do_page_fault+18b/4cd> > Trace; c011157c <do_page_fault+0/4cd> > Trace; c0123db0 <do_brk+130/230> > Trace; c0122d85 <sys_brk+c1/f0> > Trace; c0106fa0 <error_code+34/3c> > Trace; c012e1d8 <__alloc_pages+2a4/2b0> > Trace; c012dd80 <_alloc_pages+18/1c> > Trace; c01225a3 <do_anonymous_page+3b/124> > Trace; c01226bf <do_no_page+33/200> > Trace; c01228e8 <handle_mm_fault+5c/b8> > Trace; c0111707 <do_page_fault+18b/4cd> > Trace; c011157c <do_page_fault+0/4cd> > Trace; c0123db0 <do_brk+130/230> > Trace; c0122d85 <sys_brk+c1/f0> > Trace; c0106fa0 <error_code+34/3c> > Trace; c012e1d8 <__alloc_pages+2a4/2b0> > Trace; c012dd80 <_alloc_pages+18/1c> > Trace; c012595a <do_generic_file_read+356/488> > Trace; c0125f1a <generic_file_read+96/198> > Trace; c0125d9c <file_read_actor+0/e8> > Trace; c0135126 <sys_read+96/108> > Trace; c0106eb7 <system_call+2f/34> > Trace; c012e1d8 <__alloc_pages+2a4/2b0> > Trace; c012dd80 <_alloc_pages+18/1c> > Trace; c012595a <do_generic_file_read+356/488> > Trace; c0125f1a <generic_file_read+96/198> > Trace; c0125d9c <file_read_actor+0/e8> > Trace; c0135126 <sys_read+96/108> > Trace; c0106eb7 <system_call+2f/34> > >--- linux-2.4.23/mm/page_alloc.c.orig 2003-12-21 17:54:37.000000000 -0200 +++ linux-2.4.23/mm/page_alloc.c 2003-12-21 17:53:59.000000000 -0200 @@ -436,8 +436,10 @@ out: printk(KERN_NOTICE "__alloc_pages: %u-order allocation failed (gfp=0x%x/%i)\n", order, gfp_mask, !!(current->flags & PF_MEMALLOC)); - if (unlikely(vm_gfp_debug)) + if (unlikely(vm_gfp_debug)) { + printk(KERN_ERR "OOM: nr_swap_pages=%d", nr_swap_pages); dump_stack(); + } return NULL; }
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