Messages in this thread | | | Subject | Re: 2.4.26 intermittent kernel bug on boot. | From | Nigel Cunningham <> | Date | Sat, 17 Apr 2004 04:37:05 +1000 |
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Hi.
On Sat, 2004-04-17 at 04:02, Michael Frank wrote: > kernel BUG at slab.c:1238!
That's a really strange oops to see. It's testing that the GFP flags match the slab's flags. To get an oops there, you'd have to have a non-dma slab (which makes sense), but you've called the kmem_cache_alloc routine with a DMA flag. Line 444 of kernel/signal.c clearly doesn't do that! Could the args be being corrupted while being passed? What does a backtrace look like?
Nigel
> invalid operand: 0000 > > CPU: 0 > EIP: 1010:[<c013bf39>] Not tainted > EFLAGS: 00010002 > EIP is at kmem_cache_alloc+0x31/0xdc [kernel] > eax: 00000000 ebx: 00000008 ecx: 00000000 edx: 00000001 > esi: 00000000 edi: 0000000b ebp: 00000020 esp: c0407f10 > ds: 1018 es: 1018 ss: 1018 > Process swapper (pid: 0, stackpage=c0407000) > Stack: 0000000b 00000001 0000000b c040656c c0121f8c 00000000 00000020 c0406000 > 0000000b 0000000b 00000000 c012206d 0000000b 00000001 c040656c 00000282 > 0000000b c0406000 c012211c 0000000b 00000001 c0406000 00000286 c0406000 > Call Trace: > [<c0121f8c>] send_signal+0x2c/0xf0 [kernel] > [<c012206d>] deliver_signal+0x1d/0x54 [kernel] > [<c012211c>] send_sig_info+0x78/0x88 [kernel] > [<c01221a9>] force_sig_info+0x7d/0x88 [kernel] > [<c010a5e4>] do_double_fault+0x0/0x64 [kernel] > [<c01223d5>] force_sig+0x11/0x18 [kernel] > [<c010a619>] do_double_fault+0x35/0x64 [kernel] > [<c0109dc4>] error_code+0x34/0x40 [kernel] > > Code: 0f 0b d6 04 e0 b7 2b c0 8d 5e 08 9c 5f fa 8b 4e 08 39 d9 75 > > Entering kdb (current=0xc0406000, pid 0) Oops: invalid operand > due to oops @ 0xc013bf39 > eax = 0x00000000 ebx = 0x00000008 ecx = 0x00000000 edx = 0x00000001 > esi = 0x00000000 edi = 0x0000000b esp = 0xc0407f10 eip = 0xc013bf39 > ebp = 0x00000020 xss = 0x00001018 xcs = 0x00001010 eflags = 0x00010002 > xds = 0x00001018 xes = 0x00001018 origeax = 0xffffffff ®s = 0xc0407edc > kdb> > > Board did 50K+ boots testing swsusp with 2.4.2[012345]... > > It's still sitting in kdb, if you want me lookup something let me know. > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- Nigel & Michelle Cunningham C/- Westminster Presbyterian Church Belconnen 61 Templeton Street, Cook, ACT 2614. +61 (2) 6251 7727(wk); +61 (2) 6254 0216 (home)
Evolution (n): A hypothetical process whereby infinitely improbable events occur with alarming frequency, order arises from chaos, and no one is given credit.
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