Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 6 Feb 2004 07:21:54 +0000 (GMT) | From | Hugh Dickins <> | Subject | Re: [BUG]: kernel BUG at mm/swapfile.c:806! (2.6) |
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On Fri, 6 Feb 2004, [koi8-r] "Good Oleg[koi8-r] " wrote:
> PC(see below) 256Mib of RAM, linux-2.6.2, 300Mib swap file (swapon /mnt/swap/swap) > When programs cause big memory usage i have this > (since my 2.4.22 to 2.6.0-test11 migration): > > Feb 6 02:26:27 gluon kernel: ------------[ cut here ]------------ > Feb 6 02:26:27 gluon kernel: kernel BUG at mm/swapfile.c:806! > Feb 6 02:26:27 gluon kernel: invalid operand: 0000 [#1] > Feb 6 02:26:27 gluon kernel: CPU: 0 > Feb 6 02:26:27 gluon kernel: EIP: 0060:[<c015c7c4>] Tainted: PFS > Feb 6 02:26:27 gluon kernel: EFLAGS: 00010246 > Feb 6 02:26:27 gluon kernel: EIP is at map_swap_page+0x34/0x60
[ helpful info snipped ]
Interesting, thank you. That's the second report (first on 16 Jan, and in that case Not Tainted). I looked around and found some bugs in the swapfile page accounting (if swapfile filesystem blocksize < 4k: is yours? never heard back from Marcel on that) - still intermittently working on and testing the fixes there - but in the end nothing which would actually cause this BUG. Was rather thinking it came from slab corruption, but a second report makes that (a little) less likely. I'll look again later on, but other eyes may find it sooner.
Hugh
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