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SubjectRe: [Lse-tech] LTP-Nightly bk test
On Mon, 2002-08-19 at 11:50, Martin J. Bligh wrote:
> > page allocation failure. order:0, mode:0x50
> >
> > The test was: 'mtest01 -p80 -w' which will essentially allocate up to
> > 80% of the memory and write to it. I'll keep pounding on it with LTP to
> > see if I can reproduce the swap.c:80 oops.
> I think akpm posted a patch for similar mem exhaustion a few days ago,
> but I can't find it at the moment. Would be interesting to see what
> /proc/meminfo and /proc/slabinfo look like as you march to your death ;-)
Anyone know where to find that patch? I'll look at doing this again
while grabbing those files periodically. I ran this again though and
got a different error:

kernel BUG at page_alloc.c:97!
invalid operand: 0000
CPU: 1
EIP: 0060:[<c013252a>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010202
eax: 02000150 ebx: c232aa14 ecx: c232aa14 edx: c232aa14
esi: 000001fb edi: 00000000 ebp: f713d8a0 esp: f7093eb4
ds: 0068 es: 0068 ss: 0068
Stack: c232aa14 000001fb 00114000 f713d8a0 c232aa14 00047ffb c232aa6c
c19a001c c03b7b00 00000207 ffffffff 0003783b 0001bc1d c0131079
000001fb c01337cf 000001d6 c012708d c232aa14 63c00000 80000000
Call Trace: [<c0131079>] [<c01337cf>] [<c012708d>] [<c0127135>]
[<c012a2a6>] [<c011658d>] [<c011b448>] [<c011b68a>] [<c01073e3>]
Code: 0f 0b 61 00 0d c7 31 c0 8b 5c 24 10 8b 03 f6 c4 20 74 08 0f

>>EIP; c013252a <__free_pages_ok+8a/330> <=====
Trace; c0131078 <__page_cache_release+c4/c8>
Trace; c01337ce <free_page_and_swap_cache+42/48>
Trace; c012708c <zap_pte_range+24c/2a8>
Trace; c0127134 <zap_pmd_range+4c/68>
Trace; c012718c <unmap_page_range+3c/5c>
Trace; c012a2a6 <exit_mmap+ea/208>
Trace; c011658c <mmput+48/60>
Trace; c011b448 <do_exit+d8/2f4>
Trace; c011b68a <sys_exit+e/10>
Trace; c01073e2 <syscall_call+6/a>
Code; c013252a <__free_pages_ok+8a/330>
00000000 <_EIP>:
Code; c013252a <__free_pages_ok+8a/330> <=====
0: 0f 0b ud2a <=====
Code; c013252c <__free_pages_ok+8c/330>
2: 61 popa
Code; c013252c <__free_pages_ok+8c/330>
3: 00 0d c7 31 c0 8b add %cl,0x8bc031c7
Code; c0132532 <__free_pages_ok+92/330>
9: 5c pop %esp
Code; c0132534 <__free_pages_ok+94/330>
a: 24 10 and $0x10,%al
Code; c0132536 <__free_pages_ok+96/330>
c: 8b 03 mov (%ebx),%eax
Code; c0132538 <__free_pages_ok+98/330>
e: f6 c4 20 test $0x20,%ah
Code; c013253a <__free_pages_ok+9a/330>
11: 74 08 je 1b <_EIP+0x1b> c0132544
Code; c013253c <__free_pages_ok+9c/330>
13: 0f 00 00 sldt (%eax)

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