Re: kernel BUG at mm/slqb.c:1411!

[Pekka Enberg]

On Wed, 2009-05-13 at 16:42 +0900, KOSAKI Motohiro wrote:
> Todays test (repeated large file copy) hit kernel panic. mm/slqb.c:1411! mean

Can you post your .config, please? I assume this is with CONFIG_NUMA?

> 
> ----------------------------------------------------------------
> static noinline void *__slab_alloc_page(struct kmem_cache *s,
>                                 gfp_t gfpflags, int node)
> {
> (snip)
> 
>         } else {
> #ifdef CONFIG_NUMA
>                 struct kmem_cache_node *n;
> 
>                 n = s->node_slab[slqb_page_to_nid(page)];
>                 l = &n->list;
>                 page->list = l;
> 
>                 spin_lock(&n->list_lock);
>                 l->nr_slabs++;
>                 l->nr_partial++;
>                 list_add(&page->lru, &l->partial);
>                 slqb_stat_inc(l, ALLOC);
>                 slqb_stat_inc(l, ALLOC_SLAB_NEW);
>                 object = __cache_list_get_page(s, l);
>                 spin_unlock(&n->list_lock);
> #endif
>         }
>         VM_BUG_ON(!object);			// here
>         return object;
> }
> ----------------------------------------------------------------
> 
> 
> Who have any suggestions?
> 
> 
> 
> -------------------------------------------------------------------
> kernel BUG at mm/slqb.c:1411!
> pdflush[324]: bugcheck! 0 [1]
> Modules linked in: binfmt_misc nls_iso8859_1 nls_cp437 dm_multipath scsi_dh fan sg processor button container thermal e100 mii dm_snapshot dm_zero dm_mirror dm_region_hash dm_log dm_mod lpfc mptspi mptscsih mptbase ehci_hcd ohci_hcd uhci_hcd usbcore
> 
> Pid: 324, CPU 1, comm:              pdflush
> psr : 00001010085a2010 ifs : 8000000000000916 ip  : [<a0000001001bb960>]    Not tainted (2.6.30-rc4-mm1-g384655e-dirty)
> ip is at __slab_alloc_page+0x800/0x9e0
> unat: 0000000000000000 pfs : 0000000000000916 rsc : 0000000000000003
> rnat: 0000000000000001 bsps: a000000100d5b880 pr  : 005599aa55559599
> ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c8a70433f
> csd : 0000000000000000 ssd : 0000000000000000
> b0  : a0000001001bb960 b6  : a0000001005a78e0 b7  : a00000010048bac0
> f6  : 1003e000005cef074293b f7  : 1003e0000000000000190
> f8  : 1003e000005cef07427ab f9  : 1003e0000000000000001
> f10 : 1003e0000000000000100 f11 : 1003e0000000000000100
> r1  : a000000100f52d40 r2  : a000000100d263a0 r3  : a000000100d53708
> r8  : 0000000000000021 r9  : 0000000000000001 r10 : e000000001110000
> r11 : ffffffffffff0420 r12 : e0000040c1ccfc20 r13 : e0000040c1cc0000
> r14 : a000000100d263b8 r15 : e00001600b91fe18 r16 : ffffffffffff5538
> r17 : 00000000dead4ead r18 : a000000100cd222c r19 : a000000100d5b850
> r20 : a0000001005a78e0 r21 : a000000101144ae0 r22 : 0000000000099a63
> r23 : 00000000000fffff r24 : 0000000000100000 r25 : a0000001009e7a68
> r26 : a00000010048bb60 r27 : 0000000000000100 r28 : 0000000000000001
> r29 : e0000040c1cc0de4 r30 : a00000010048bac0 r31 : 0000000000000000
> 
> Call Trace:
>  [<a0000001000179c0>] show_stack+0x80/0xa0
>                                 sp=e0000040c1ccf7f0 bsp=e0000040c1cc1730
>  [<a0000001000182d0>] show_regs+0x890/0x8c0
>                                 sp=e0000040c1ccf9c0 bsp=e0000040c1cc16d8
>  [<a000000100040b50>] die+0x1b0/0x2e0
>                                 sp=e0000040c1ccf9c0 bsp=e0000040c1cc1690
>  [<a000000100040cd0>] die_if_kernel+0x50/0x80
>                                 sp=e0000040c1ccf9c0 bsp=e0000040c1cc1660
>  [<a0000001007cc5f0>] ia64_bad_break+0x4b0/0x700
>                                 sp=e0000040c1ccf9c0 bsp=e0000040c1cc1638
>  [<a00000010000c980>] ia64_native_leave_kernel+0x0/0x270
>                                 sp=e0000040c1ccfa50 bsp=e0000040c1cc1638
>  [<a0000001001bb960>] __slab_alloc_page+0x800/0x9e0
>                                 sp=e0000040c1ccfc20 bsp=e0000040c1cc1580
>  [<a0000001001bd570>] kmem_cache_alloc+0x510/0x700
>                                 sp=e0000040c1ccfc20 bsp=e0000040c1cc14f0
>  [<a000000100149ad0>] mempool_alloc_slab+0x30/0x60
>                                 sp=e0000040c1ccfc20 bsp=e0000040c1cc14c8
>  [<a00000010014a1a0>] mempool_alloc+0xc0/0x360	
>                                 sp=e0000040c1ccfc20 bsp=e0000040c1cc1440
>  [<a00000010022f4d0>] bio_alloc_bioset+0x50/0x240
>                                 sp=e0000040c1ccfc50 bsp=e0000040c1cc13f0
>  [<a00000010022f790>] bio_alloc+0x30/0x80	
>                                 sp=e0000040c1ccfc60 bsp=e0000040c1cc13c8
>  [<a000000100220a90>] submit_bh+0x130/0x3e0
>                                 sp=e0000040c1ccfc60 bsp=e0000040c1cc1398
>  [<a000000100226d90>] __block_write_full_page+0x510/0xbc0
>                                 sp=e0000040c1ccfc60 bsp=e0000040c1cc1310
>  [<a0000001002275f0>] block_write_full_page_endio+0x1b0/0x220
>                                 sp=e0000040c1ccfc60 bsp=e0000040c1cc12d0
>  [<a000000100227690>] block_write_full_page+0x30/0x60
>                                 sp=e0000040c1ccfc60 bsp=e0000040c1cc12a0
>  [<a0000001002a9210>] ext3_writeback_writepage+0x190/0x380
>                                 sp=e0000040c1ccfc60 bsp=e0000040c1cc1260
>  [<a0000001001566b0>] __writepage+0x50/0x1a0
>                                 sp=e0000040c1ccfc60 bsp=e0000040c1cc1230
>  [<a000000100157370>] write_cache_pages+0x530/0x940
>                                 sp=e0000040c1ccfc60 bsp=e0000040c1cc1140
>  [<a0000001001577e0>] generic_writepages+0x60/0x80
>                                 sp=e0000040c1ccfcf0 bsp=e0000040c1cc1118
>  [<a000000100157910>] do_writepages+0x110/0x140
>                                 sp=e0000040c1ccfcf0 bsp=e0000040c1cc10e8
>  [<a000000100214c20>] __writeback_single_inode+0x160/0x9a0
>                                 sp=e0000040c1ccfcf0 bsp=e0000040c1cc1088
>  [<a000000100215d40>] generic_sync_sb_inodes+0x3c0/0xa00
>                                 sp=e0000040c1ccfd30 bsp=e0000040c1cc1018
>  [<a000000100216420>] sync_sb_inodes+0xa0/0xc0
>                                 sp=e0000040c1ccfd30 bsp=e0000040c1cc0fe8
>  [<a000000100216620>] writeback_inodes+0x1e0/0x280
>                                 sp=e0000040c1ccfd30 bsp=e0000040c1cc0f98
>  [<a000000100159ba0>] background_writeout+0x160/0x240
>                                 sp=e0000040c1ccfd30 bsp=e0000040c1cc0f30
>  [<a00000010015b010>] pdflush+0x290/0x500
>                                 sp=e0000040c1ccfd80 bsp=e0000040c1cc0ec0
>  [<a0000001000df800>] kthread+0x100/0x140
>                                 sp=e0000040c1ccfdf0 bsp=e0000040c1cc0e88
>  [<a000000100015970>] kernel_thread_helper+0xd0/0x100
>                                 sp=e0000040c1ccfe30 bsp=e0000040c1cc0e60
>  [<a00000010000a580>] start_kernel_thread+0x20/0x40
>                                 sp=e0000040c1ccfe30 bsp=e0000040c1cc0e60
> Disabling lock debugging due to kernel taint
> Kernel panic - not syncing: Fatal exception
> Rebooting in 1 seconds..
> 
> 
> 
> 
> 

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