On Sat, 29 Sep 2007 11:14:02 +0200 Peter Zijlstra <[email protected]> wrote:
> > oom-killings, or page allocation failures? The latter, one hopes.
>
>
> Linux version 2.6.23-rc4-mm1-dirty (root@dyad) (gcc version 4.1.2 (Ubuntu 4.1.2-0ubuntu4)) #27 Tue Sep 18 15:40:35 CEST 2007
>
> ...
>
>
> mm_tester invoked oom-killer: gfp_mask=0x40d0, order=2, oomkilladj=0
> Call Trace:
> 611b3878: [<6002dd28>] printk_ratelimit+0x15/0x17
> 611b3888: [<60052ed4>] out_of_memory+0x80/0x100
> 611b38c8: [<60054b0c>] __alloc_pages+0x1ed/0x280
> 611b3948: [<6006c608>] allocate_slab+0x5b/0xb0
> 611b3968: [<6006c705>] new_slab+0x7e/0x183
> 611b39a8: [<6006cbae>] __slab_alloc+0xc9/0x14b
> 611b39b0: [<6011f89f>] radix_tree_preload+0x70/0xbf
> 611b39b8: [<600980f2>] do_mpage_readpage+0x3b3/0x472
> 611b39e0: [<6011f89f>] radix_tree_preload+0x70/0xbf
> 611b39f8: [<6006cc81>] kmem_cache_alloc+0x51/0x98
> 611b3a38: [<6011f89f>] radix_tree_preload+0x70/0xbf
> 611b3a58: [<6004f8e2>] add_to_page_cache+0x22/0xf7
> 611b3a98: [<6004f9c6>] add_to_page_cache_lru+0xf/0x24
> 611b3ab8: [<6009821e>] mpage_readpages+0x6d/0x109
> 611b3ac0: [<600d59f0>] ext3_get_block+0x0/0xf2
> 611b3b08: [<6005483d>] get_page_from_freelist+0x8d/0xc1
> 611b3b88: [<600d6937>] ext3_readpages+0x18/0x1a
> 611b3b98: [<60056f00>] read_pages+0x37/0x9b
> 611b3bd8: [<60057064>] __do_page_cache_readahead+0x100/0x157
> 611b3c48: [<60057196>] do_page_cache_readahead+0x52/0x5f
> 611b3c78: [<60050ab4>] filemap_fault+0x145/0x278
> 611b3ca8: [<60022b61>] run_syscall_stub+0xd1/0xdd
> 611b3ce8: [<6005eae3>] __do_fault+0x7e/0x3ca
> 611b3d68: [<6005ee60>] do_linear_fault+0x31/0x33
> 611b3d88: [<6005f149>] handle_mm_fault+0x14e/0x246
> 611b3da8: [<60120a7b>] __up_read+0x73/0x7b
> 611b3de8: [<60013177>] handle_page_fault+0x11f/0x23b
> 611b3e48: [<60013419>] segv+0xac/0x297
> 611b3f28: [<60013367>] segv_handler+0x68/0x6e
> 611b3f48: [<600232ad>] get_skas_faultinfo+0x9c/0xa1
> 611b3f68: [<60023853>] userspace+0x13a/0x19d
> 611b3fc8: [<60010d58>] fork_handler+0x86/0x8d
OK, that's different. Someone broke the vm - order-2 GFP_KERNEL
allocations aren't supposed to fail.
I'm suspecting that did_some_progress thing.
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