39264 – Kernel BUG at mm/page_alloc.c in kernel 2.6.1

Bug 39264 - Kernel BUG at mm/page_alloc.c in kernel 2.6.1

Summary: Kernel BUG at mm/page_alloc.c in kernel 2.6.1

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	[OLD] Core system (show other bugs)
Hardware:	x86 Linux

Importance:	High critical (vote)
Assignee:	John Mylchreest (RETIRED)

URL:
Whiteboard:
Keywords:

Depends on:
Blocks:

Reported:	2004-01-24 10:13 UTC by Jon Dye
Modified:	2004-02-04 11:54 UTC (History)
CC List:	1 user (show)

See Also:
Package list:
Runtime testing required:	---

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Description Jon Dye 2004-01-24 10:13:50 UTC

I have had serveral kernel bugs with 2.6.1-gentoo when using the mythbackend program and a Nova-T dvb card.
 The log shows:

Jan 24 18:07:45 hal kernel BUG at mm/page_alloc.c:290!
Jan 24 18:07:45 hal invalid operand: 0000 [#3]
Jan 24 18:07:45 hal CPU:    0
Jan 24 18:07:45 hal EIP:    0060:[<c013c7e5>]    Not tainted
Jan 24 18:07:45 hal EFLAGS: 00010002
Jan 24 18:07:45 hal EIP is at __rmqueue+0x115/0x120
Jan 24 18:07:45 hal eax: 00000001   ebx: 00000010   ecx: 00001000   edx: 0000b2d0
Jan 24 18:07:45 hal esi: c03c0760   edi: c03c076c   ebp: c11bf080   esp: d2fa5ce0
Jan 24 18:07:45 hal ds: 007b   es: 007b   ss: 0068
Jan 24 18:07:45 hal Process mythbackend (pid: 25121, threadinfo=d2fa4000 task=d3e66d00)
Jan 24 18:07:45 hal Stack: c03c06f4 c11bf080 00000004 0000a2d0 0000a2c0 00000000 c03c07d0 00000000
Jan 24 18:07:45 hal 00000092 c013c84b c03c06f4 00000000 c03c06f4 d2fa4000 c03c07c0 00000000
Jan 24 18:07:45 hal c013cc34 c03c06f4 00000000 00000010 c03c07d0 00000202 c03c06f4 0000015f
Jan 24 18:07:45 hal Call Trace:
Jan 24 18:07:45 hal [<c013c84b>] rmqueue_bulk+0x5b/0x80
Jan 24 18:07:45 hal [<c013cc34>] buffered_rmqueue+0x144/0x160
Jan 24 18:07:45 hal [<c013ccff>] __alloc_pages+0xaf/0x350
Jan 24 18:07:45 hal [<c013aabd>] generic_file_aio_write_nolock+0x32d/0xa60
Jan 24 18:07:45 hal [<c02757ce>] __make_request+0x43e/0x5a0
Jan 24 18:07:45 hal [<c013b301>] generic_file_aio_write+0x71/0x90
Jan 24 18:07:45 hal [<c018b5b4>] ext3_file_write+0x44/0xe0
Jan 24 18:07:45 hal [<c0154a8b>] do_sync_write+0x8b/0xc0
Jan 24 18:07:45 hal [<c01286ab>] schedule_timeout+0x6b/0xc0
Jan 24 18:07:45 hal [<c019a779>] journal_start+0xa9/0xd0
Jan 24 18:07:45 hal [<c0154b7e>] vfs_write+0xbe/0x130
Jan 24 18:07:45 hal [<c0154ca2>] sys_write+0x42/0x70
Jan 24 18:07:45 hal [<c010b49b>] syscall_call+0x7/0xb
Jan 24 18:07:45 hal
Jan 24 18:07:45 hal Code: 0f 0b 22 01 57 50 37 c0 eb b5 90 55 57 31 ff 56 53 83 ec 08
Jan 24 18:07:45 hal <6>note: mythbackend[25121] exited with preempt_count 2


Reproducible: Sometimes
Steps to Reproduce:
1. Start mythbackend
2. Run mythfrontend and start watching tv from the dvb card
3. crash is usually within a couple of minutes

Actual Results:  
The tv stopped and the frontend complained about the backend being missing.  The
backend was killed and the logs showed the attached message.

Expected Results:  
not crashed!

Portage 2.0.49-r21 (default-x86-1.4, gcc-3.2.3, glibc-2.3.2-r3, 2.6.1-gentoo)
=================================================================
System uname: 2.6.1-gentoo i686 AMD Athlon(tm) XP 2400+
Gentoo Base System version 1.4.3.10
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CFLAGS="-O3 -mcpu=athlon-xp -march=athlon-xp -funroll-loops -pipe"
CHOST="i686-pc-linux-gnu"
COMPILER="gcc3"
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config
/usr/kde/3.1/share/config /usr/kde/3/share/config /usr/share/config
/var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d"
CXXFLAGS="-O2 -mcpu=athlon-xp -march=athlon-xp -funroll-loops -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs ccache sandbox"
GENTOO_MIRRORS="http://212.219.247.11/sites/www.ibiblio.org/gentoo/
http://212.219.247.20/sites/www.ibiblio.org/gentoo/
http://212.219.247.13/sites/www.ibiblio.org/gentoo/
http://212.219.247.18/sites/www.ibiblio.org/gentoo/"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="3dnow 3ds X alsa apm arts artswrappersuid avi berkdb cdr crypt cups dga
directfb dvb encode esd fam fbcon foomaticdb gdbm gif gphoto2 gpm gtk gtk2 imap
imlib ipv6 java joystick jpeg kde libg++ libwww lirc mad mikmod mmx mng motif
mozilla mpeg mysql ncurses nls oggvorbis openal opengl oss pam pdflib perl pic
png ppds python qt quicktime readline samba scanner sdl slang spell sse ssl svga
tcpd tiff truetype usb videos x86 xml2 xmms xv zlib video_cards_radeon"

Comment 1 Jon Dye 2004-02-02 01:14:52 UTC

If I increase the latency_timer setting (from 32 to 128) on the PCI slot with the DVB card that this process is using this problem goes away (havn't seen it for a week now).  I have reported this to the dvb mailing list at linuxtv.org but have not had any responses yet.

Comment 2 John Mylchreest (RETIRED) gentoo-dev

2004-02-04 11:54:25 UTC

please also try this with 2.6.2.
These issues should now be solved.
please re-open if the issue still occurs