** Description changed:
Release: Kubuntu 8.10 x86_64
System: Lenovo ThinkPad T400
Kernel 2.6.27-9-generic
+ filesystem layout at the time when symptoms appear:
+
+ Filesystem Size Used Avail Use% Mounted on
+ /dev/sda2 27G 26G 0 100% /
+ tmpfs 1.5G 0 1.5G 0% /lib/init/rw
+ varrun 1.5G 224K 1.5G 1% /var/run
+ varlock 1.5G 0 1.5G 0% /var/lock
+ udev 1.5G 2.9M 1.5G 1% /dev
+ tmpfs 1.5G 12K 1.5G 1% /dev/shm
+ lrm 1.5G 2.4M 1.5G 1%
/lib/modules/2.6.27-9-generic/volatile
+ /dev/sda1 97M 26M 67M 28% /boot
+ /dev/sda6 45G 9.6G 33G 23% /home
+ overflow 1.0M 52K 972K 6% /tmp
+
Symptoms:
- 1) Various programs suddenly complain about filled root partition. (root and
/home partitions are ext3)
+ 1) Various programs suddenly complain about filled root partition, or start
acting oddly. (/ and /home partitions are ext3)
2) df -h shows that of 27G 26G is used and 0% is free.
- 3) pty1 starts spewing out "Ext3 FS error: block xxxxxx already marked free"
errors as fast as it can (and never stops), it's impossible to escape the
console back to the desktop.
+ 3) pty1 starts spewing out "Ext3 FS error: block xxxxxx already marked free"
errors as fast as it can (and never stops), it's impossible to escape the
console back to the desktop. dmesg
4) When shutting down or restarting system simply halts and spews out the fs
errors for different blocks and never shuts down.
- 5) Also dmesg and kernel logs had suddenly grown to many gigabytes in size
(propably error messages, has happened once) but i was unable to access them
after fsck fix. If it happens again i'll paste the output here.
- 6) This has happened three times with the new kernel. Last time it happened i
was recording a screencast of my desktop and wondered why the recorded output
video contained only parts of the whole recording. Also, hdd usage was random
when recording videos (half of the time no write activity and then a big burst)
+ 5) kern.log had suddenly grown to many gigabytes in size, there's a horde of
lines like this:
+
+ Dec 23 01:01:37 nyarlathotep kernel: [45311.769667] bad: scheduling from the
idle thread!
+ Dec 23 01:01:37 nyarlathotep kernel: [45311.769671] Pid: 0, comm: swapper Not
tainted 2.6.27-9-generic #1
+ Dec 23 01:01:37 nyarlathotep kernel: [45311.769672]
+ Dec 23 01:01:37 nyarlathotep kernel: [45311.769673] Call Trace:
+ Dec 23 01:01:37 nyarlathotep kernel: [45311.769676] [<ffffffff8023e06d>]
dequeue_task_idle+0x2d/0x40
+ Dec 23 01:01:37 nyarlathotep kernel: [45311.769678] [<ffffffff8023c436>]
dequeue_task+0x96/0xe0
+ Dec 23 01:01:37 nyarlathotep kernel: [45311.769680] [<ffffffff8023c4d3>]
deactivate_task+0x23/0x30
+ Dec 23 01:01:37 nyarlathotep kernel: [45311.769683] [<ffffffff80500775>]
thread_return+0x108/0x3c3
+ Dec 23 01:01:37 nyarlathotep kernel: [45311.769685] [<ffffffff80210ecd>]
cpu_idle+0xad/0x110
+ Dec 23 01:01:37 nyarlathotep kernel: [45311.769688] [<ffffffff804f0536>]
rest_init+0x66/0x70
+
+
+ 6) This has happened three times with the new kernel. Last time it happened i
was recording a screencast of my desktop and wondered why the recorded output
video contained only parts of the whole recording. Also, hdd usage was random
when recording videos (half of the time no write activity and then a big
burst). The next time i wondered why youtube videos stopped playing after a few
seconds.
After rebooting the system following errors on root partition are found
after manual fsck:
Inode bitmap differencies (a few dozen)
free blocks count wrong group #0 (hundreds)
inodes part of a corrupted orphan linked list found (in the thousands)
inode has zero dtime (a few)
Fixing manually was succesful and system can be rebooted and used
normally. I noticed some of my personal settings (such as firefox addons
and some desktop setings) had gone awry which i'm storing on a separate
/home partition. I haven't found any corruption in my image or music
files but I find that some files are just missing completely.
I don't remember experiencing this problem with 2.6.27-7 or any other
previous kernel, but after upgrading and booting into 2.6.27-9 it has
started to happen. I've checked the health of my system and everything
seems fine on the hw side.
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller
(rev 03) (prog-if 01)
Subsystem: Lenovo Device 20f8
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 2299
I/O ports at 1c48 [size=8]
I/O ports at 183c [size=4]
I/O ports at 1c40 [size=8]
I/O ports at 1838 [size=4]
I/O ports at 1c20 [size=32]
Memory at fc226000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev
03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
(prog-if 01)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5
(rev 03)
** Tags added: swap
--
System tilts due to ext3 fs errors
https://bugs.launchpad.net/bugs/304128
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