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SubjectRe: 2.6.18-rc1-git4 and 2.6.18-rc1-mm1 OOM's on boot
Andy Whitcroft wrote:
> Martin Bligh wrote:
>> Andrew Morton wrote:
>>> On Wed, 12 Jul 2006 09:53:08 -0700
>>> Martin Bligh <mbligh@google.com> wrote:
>>>
>>>
>>>> -git3 was fine
>>>> (bootlog for git3: http://test.kernel.org/abat/40748/debug/console.log)
>>>>
>>>> -mm1 has the same issue
>>>>
>>>> Slightly different manifestations across 2 boots
>>>>
>>>> http://test.kernel.org/abat/40760/debug/console.log
>>>> http://test.kernel.org/abat/40837/debug/console.log
>>>
>>>
>>> [<c0136fcf>] out_of_memory+0x29/0xf6
>>> [<c0137f48>] __alloc_pages+0x1ed/0x276
>>> [<c014db73>] kmem_getpages+0x63/0xc1
>>> [<c014e960>] cache_grow+0xaa/0x139
>>> [<c014eb6a>] cache_alloc_refill+0x17b/0x1c0
>>> [<c014f1ef>] __kmalloc+0x83/0x93
>>> [<c0168cf5>] alloc_fd_array+0x19/0x24
>>> [<c0169122>] alloc_fdtable+0xb2/0xef
>>> [<c016917f>] expand_fdtable+0x20/0x7d
>>> [<c0169221>] expand_files+0x45/0x50
>>> [<c0161263>] locate_fd+0x70/0x8e
>>> [<c01612aa>] dupfd+0x29/0x61
>>> [<c01613dc>] sys_dup+0x1b/0x23
>>> [<c01027d3>] syscall_call+0x7/0xb
>>>
>>> I suspect that's because I had me a little mistake.
>>>
>>> --- a/fs/file.c~alloc_fdtable-expansion-fix
>>> +++ a/fs/file.c
>>> @@ -240,7 +240,7 @@ static struct fdtable *alloc_fdtable(int
>>> if (!fdt)
>>> goto out;
>>>
>>> - nfds = max_t(int, 8 * L1_CACHE_BYTES, roundup_pow_of_two(nfds));
>>> + nfds = max_t(int, 8 * L1_CACHE_BYTES, roundup_pow_of_two(nr + 1));
>>> if (nfds > NR_OPEN)
>>> nfds = NR_OPEN;
>>>
>>> _
>>>
>>
>> Thanks, that was affecting several machines.
>>
>> Andy, any chance we can do an across-all-machines run of that one on top
>> of -mm1? Thanks,
>>
>> M.
>
> Yep, I've run this with badari's fix as a set across the whole family. I
> did all dbenchall runs for now as this example is showing on that and
> badari's is triggered same. If there is any measure of success there
> I'll throw in the externals too.

General goodness from this one. Except where we're getting issues with
the e1000's. That seems to be fixed up by backing out some driver changes.

All moot, as -mm2 is showing similar goodness.

-apw

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