Messages in this thread |  | | Date | Wed, 11 Oct 2000 17:17:43 -0300 (BRST) | From | Rik van Riel <> | Subject | Re: test10-pre1 problems on 4-way SuperServer8050 |
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On Wed, 11 Oct 2000, Tigran Aivazian wrote: > On Wed, 11 Oct 2000, Rik van Riel wrote: > > Could you send me the backtrace of one of the cases where > > you hit the bug ? > > here you are:
> Oct 11 16:05:26 hilbert36 kernel: kernel BUG at page_alloc.c:221! > Oct 11 16:05:27 hilbert36 kernel: Call Trace: [tvecs+9181/112440] [tvecs+9707/112440] [__alloc_pages+225/740] [filemap_nopage+240/1120] [do_no_page+93/440] [<fcd9d025>] [<fcd9d025>] > Oct 11 16:05:27 hilbert36 kernel: [<fcd9d025>] [<fcd9d025>] [<fcd9d025>] [handle_mm_fault+944/1388] [do_page_fault+0/1008] [unmap_fixup+99/316] [do_page_fault+323/1008] [do_page_fault+0/1008] > Oct 11 16:05:27 hilbert36 kernel: [timer_bh+56/700] [bh_action+78/176] [tasklet_hi_action+81/124] [do_softirq+90/136] [do_IRQ+218/236] [error_code+52/60]
Ughhh, of course ... this comes into __alloc_pages(), which finds a page with some flags set on the free list ... this backtrace - of course - isn't helpful in debugging the thing, sorry for wasting your time...
[off to find other ways of finding this problem ... note that __free_pages_ok() does the SAME BUG() check before putting the page on the free list]
regards,
Rik -- "What you're running that piece of shit Gnome?!?!" -- Miguel de Icaza, UKUUG 2000
http://www.conectiva.com/ http://www.surriel.com/
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