Bug#409733: kernel-source-2.6.8: large numbers of __find_get_block_slow() errors
Package: kernel-source-2.6.8
Version: 2.6.8-16sarge6
Severity: normal
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Hi,
Hope I'm reporting this to the correct place...
This is a straight sarge system. Hardware info below.
The problem I observe is that -
when /etc/cron.daily/sysklogd runs,
/var sometimes fills up,
because the /var/log/syslog accumulates tens of thousands of errors like:
Feb 5 11:18:56 myhost kernel: __find_get_block_slow() failed.
block=204803, b_blocknr=18446744073709551615
Feb 5 11:18:56 myhost kernel: b_state=0x00000000, b_size=1024
Feb 5 11:18:56 myhost kernel: device blocksize: 1024
Feb 5 11:18:56 myhost kernel: 4
Feb 5 11:18:56 myhost kernel: device blocksize: 1024
Possibly other things trigger this as well but certainly running sysklogd
does; the errors are correlated with the time /etc/cron.daily runs, and
I was able to produce them by running each script in /etc/cron.daily
in turn - when I hit sysklogd, the errors appeared.
I thought this could be CVE-2006-5757,
see for example the change log for http://lwn.net/Alerts/209028/,
and also SUSE-SA:2006:079 http://lwn.net/Alerts/215225/
however I don't see how I could be accessing an ISO9660 filesystem from
sysklogd, as far as I can tell it's only accessing and ext2 fs.
'df' output -
# df -text2
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda1 241116 158361 70307 70% /
/dev/sda5 2909956 2433204 326548 89% /usr
/dev/sda6 964756 964752 0 100% /var
/dev/sda7 964756 16612 898348 2% /tmp
# df -text3
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda8 144335992 100427340 36458512 74% /data1
/dev/sdb1 153794688 129894164 16088120 89% /data2
Typescript of running sysklogd -
# ------------------------- start -------------------------------------
# cd /etc/cron.daily ; sh -vx sysklogd |grep -v ^#
test -x /usr/sbin/syslogd-listfiles || exit 0
+ test -x /usr/sbin/syslogd-listfiles
test -x /sbin/syslogd || exit 0
+ test -x /sbin/syslogd
test -f /usr/share/sysklogd/dummy || exit 0
+ test -f /usr/share/sysklogd/dummy
set -e
+ set -e
cd /var/log
+ cd /var/log
for LOG in `syslogd-listfiles`
do
if [ -s $LOG ]; then
savelog -g adm -m 640 -u root -c 7 $LOG >/dev/null
fi
done
syslogd-listfiles
++ syslogd-listfiles
+ '[' -s /var/log/messages ']'
+ savelog -g adm -m 640 -u root -c 7 /var/log/messages
+ '[' -s /var/log/syslog ']'
+ savelog -g adm -m 640 -u root -c 7 /var/log/syslog
+ '[' -s /var/log/kern.log ']'
+ savelog -g adm -m 640 -u root -c 7 /var/log/kern.log
for LOG in `syslogd-listfiles --auth`
do
if [ -f $LOG ]; then
chown root:adm $LOG
chmod o-rwx $LOG
fi
done
syslogd-listfiles --auth
++ syslogd-listfiles --auth
+ '[' -f /var/log/auth.log ']'
+ chown root:adm /var/log/auth.log
+ chmod o-rwx /var/log/auth.log
/etc/init.d/sysklogd reload-or-restart > /dev/null
+ /etc/init.d/sysklogd reload-or-restart
# ------------------------- end -------------------------------------
Hardware information
# (lspci -n; lspci) |sort
0000:00:00.0 0600: 8086:2570 (rev 02)
0000:00:00.0 Host bridge: Intel Corp. 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02)
0000:00:01.0 0604: 8086:2571 (rev 02)
0000:00:01.0 PCI bridge: Intel Corp. 82865G/PE/P PCI to AGP Controller (rev 02)
0000:00:1d.0 0c03: 8086:24d2 (rev 02)
0000:00:1d.0 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #1 (rev 02)
0000:00:1d.1 0c03: 8086:24d4 (rev 02)
0000:00:1d.1 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #2 (rev 02)
0000:00:1d.2 0c03: 8086:24d7 (rev 02)
0000:00:1d.2 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #3 (rev 02)
0000:00:1d.3 0c03: 8086:24de (rev 02)
0000:00:1d.3 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB UHCI #4 (rev 02)
0000:00:1d.7 0c03: 8086:24dd (rev 02)
0000:00:1d.7 USB Controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
0000:00:1e.0 0604: 8086:244e (rev c2)
0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev c2)
0000:00:1f.0 0601: 8086:24d0 (rev 02)
0000:00:1f.0 ISA bridge: Intel Corp. 82801EB/ER (ICH5/ICH5R) LPC Bridge (rev 02)
0000:00:1f.1 0101: 8086:24db (rev 02)
0000:00:1f.1 IDE interface: Intel Corp. 82801EB/ER (ICH5/ICH5R) Ultra ATA 100 Storage Controller (rev 02)
0000:00:1f.2 0101: 8086:24d1 (rev 02)
0000:00:1f.2 IDE interface: Intel Corp. 82801EB (ICH5) Serial ATA 150 Storage Controller (rev 02)
0000:00:1f.3 0c05: 8086:24d3 (rev 02)
0000:00:1f.3 SMBus: Intel Corp. 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
0000:00:1f.5 0401: 8086:24d5 (rev 02)
0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
0000:01:00.0 0300: 10de:0322 (rev a1)
0000:01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5200] (rev a1)
0000:02:0c.0 0200: 8086:100e (rev 02)
0000:02:0c.0 Ethernet controller: Intel Corp. 82540EM Gigabit Ethernet Controller (rev 02)
# lsmod
Module Size Used by
nfsd 201344 8
exportfs 6400 1 nfsd
autofs4 19748 17
ipv6 265124 18
nfs 193952 4
lockd 63944 3 nfsd,nfs
sunrpc 153156 9 nfsd,nfs,lockd
af_packet 22600 2
floppy 61200 0
i810_audio 37588 0
ac97_codec 18956 1 i810_audio
pci_hotplug 34640 0
snd_intel8x0 36460 0
snd_ac97_codec 69988 1 snd_intel8x0
snd_pcm 98728 1 snd_intel8x0
snd_timer 25732 1 snd_pcm
snd_page_alloc 11752 2 snd_intel8x0,snd_pcm
gameport 4704 1 snd_intel8x0
snd_mpu401_uart 7968 1 snd_intel8x0
snd_rawmidi 25124 1 snd_mpu401_uart
snd_seq_device 8200 1 snd_rawmidi
snd 57156 7
snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
soundcore 10272 2 i810_audio,snd
piix 13440 1
capability 4520 0
commoncap 7232 1 capability
nvidia 3923228 0
ide_cd 42656 0
cdrom 40732 1 ide_cd
ide_generic 1408 0
ext2 71912 4
ext3 127432 2
jbd 62616 1 ext3
mbcache 9348 2 ext2,ext3
sd_mod 21728 9
usb_storage 69056 0
ide_core 139940 4 piix,ide_cd,ide_generic,usb_storage
rtc 12760 0
pcspkr 3592 0
parport_pc 36900 0
parport 41800 1 parport_pc
uhci_hcd 33136 0
intel_mch_agp 10608 0
intel_agp 22816 1
agpgart 34664 3 nvidia,intel_mch_agp,intel_agp
tsdev 7392 0
mousedev 10476 0
joydev 9984 0
evdev 9600 0
usbhid 32224 0
ehci_hcd 32004 0
usbcore 119044 6 usb_storage,uhci_hcd,usbhid,ehci_hcd
dm_mod 59804 0
e1000 85924 0
ata_piix 8132 7
libata 41700 1 ata_piix
scsi_mod 125228 3 sd_mod,usb_storage,libata
unix 28788 54
font 8320 0
vesafb 6656 0
cfbcopyarea 3872 1 vesafb
cfbimgblt 3040 1 vesafb
cfbfillrect 3776 1 vesafb
-- System Information:
Debian Release: 3.1
Architecture: i386 (i686)
Kernel: Linux 2.6.8-3-686
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Versions of packages kernel-source-2.6.8 depends on:
ii binutils 2.15-6 The GNU assembler, linker and bina
ii bzip2 1.0.2-7 high-quality block-sorting file co
ii coreutils [fileutils] 5.2.1-2 The GNU core utilities
ii fileutils 5.2.1-2 The GNU file management utilities
-- no debconf information
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