Re: [Dazuko-help] v3.1.1 causes system hangs & crashes on kernel 2.6.31 (Debian Etch)

[John Ogness]

On 2009-10-18, Bobyr Raisa Efimovna <address@hidden> wrote:
> The log of crashing Xorg when starting OPERA ( "/home" is dazuko
> mounted, no AVGUARD):

Thanks for the kernel output. This is helpful.

Could you answer the following questions?

1. Is /home the only directory you have DazukoFS mounted on? If no,
could you only mount DazukoFS on /home to see if the problem still
exists? I suspect that the problem may not be /home, but instead
another directory such as /tmp or /var.

2. The following problem should occur when no Dazuko-based
applications are running. (No AvGuard, no Dazuko test program.) Is
that correct?

3. Could you provide the output of "mount | grep dazuko" so that I can
see exactly where DazukoFS is being mounted?

John

> -----------------------------------------------
> Oct 18 19:36:54 vano-home kernel: BUG: unable to handle kernel NULL pointer 
> dereference at (null)
> Oct 18 19:36:54 vano-home kernel: IP: [<(null)>] (null)
> Oct 18 19:36:54 vano-home kernel: *pde = 00000000 
> Oct 18 19:36:54 vano-home kernel: Oops: 0000 [#1] SMP 
> Oct 18 19:36:54 vano-home kernel: last sysfs file: 
> /sys/devices/platform/w83627ehf.656/pwm2
> Oct 18 19:36:54 vano-home kernel: Modules linked in: nvidia(P) rfcomm l2cap 
> bluetooth cpufreq_userspace cpufreq_powersave cpufreq_conservative bridge stp 
> llc dazukofs isofs w83627ehf hwmon_vid coretemp msr usblp tun kvm_intel kvm 
> virtio_balloon virtio_pci virtio_ring virtio pktcdvd fuse drm ipt_LOG 
> ipt_REJECT x_tables hid_drff usbhid hid tuner_simple tuner_types tuner 
> snd_hda_codec_realtek saa7134 ir_common atl1 uhci_hcd ehci_hcd snd_hda_intel 
> v4l2_common asus_atk0110 mii snd_hda_codec hwmon videodev v4l1_compat 
> videobuf_dma_sg videobuf_core tveeprom i2c_i801 usbcore intel_agp agpgart 
> evdev sg
> Oct 18 19:36:54 vano-home kernel:
> Oct 18 19:36:54 vano-home kernel: Pid: 4679, comm: opera Tainted: P           
> (2.6.31-sata-4g #1) P5KC
> Oct 18 19:36:54 vano-home kernel: EIP: 0060:[<00000000>] EFLAGS: 00210246 
> CPU: 1
> Oct 18 19:36:54 vano-home kernel: EIP is at 0x0
> Oct 18 19:36:54 vano-home kernel: EAX: f69f7640 EBX: f5e11dc0 ECX: f88d51d8 
> EDX: f726a2b4
> Oct 18 19:36:54 vano-home kernel: ESI: 00000000 EDI: 000000ca EBP: 00000000 
> ESP: f5e11d68
> Oct 18 19:36:54 vano-home kernel: DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
> Oct 18 19:36:54 vano-home kernel: Process opera (pid: 4679, ti=f5e10000 
> task=f6451bd0 task.ti=f5e10000)
> Oct 18 19:36:54 vano-home kernel: Stack:
> Oct 18 19:36:54 vano-home kernel: c10518fe 000000ca 00000000 0000004f 
> 00000000 f5e11dc4 f5e11dc0 f5e11e88
> Oct 18 19:36:54 vano-home kernel: <0> f69f7640 f726a2b4 f88d51d8 f726a204 
> 00000f36 0000004f 000000ca 00000000
> Oct 18 19:36:54 vano-home kernel: <0> f88d51d8 f726a2b4 f5e11f2c 00000005 
> 00000000 0000004f f5e11f4c f16b7f98
> Oct 18 19:36:54 vano-home kernel: Call Trace:
> Oct 18 19:36:54 vano-home kernel: [<c10518fe>] ? 
> generic_file_buffered_write+0xe2/0x279
> Oct 18 19:36:54 vano-home kernel: [<c105204e>] ? 
> __generic_file_aio_write_nolock+0x3ee/0x439
> Oct 18 19:36:54 vano-home kernel: [<c1076c60>] ? do_lookup+0x53/0x153
> Oct 18 19:36:54 vano-home kernel: [<c10528bc>] ? 
> generic_file_aio_write+0x5d/0xb4
> Oct 18 19:36:54 vano-home kernel: [<c1070473>] ? 
> do_sync_readv_writev+0xb8/0xf9
> Oct 18 19:36:54 vano-home kernel: [<c1081f19>] ? mntput_no_expire+0x17/0xb6
> Oct 18 19:36:54 vano-home kernel: [<c1035d2a>] ? 
> autoremove_wake_function+0x0/0x2d
> Oct 18 19:36:54 vano-home kernel: [<c1070320>] ? 
> rw_copy_check_uvector+0x59/0xc3
> Oct 18 19:36:54 vano-home kernel: [<c111b2cc>] ? 
> security_file_permission+0xc/0xd
> Oct 18 19:36:54 vano-home kernel: [<c1070aae>] ? do_readv_writev+0x81/0x140
> Oct 18 19:36:54 vano-home kernel: [<c105285f>] ? 
> generic_file_aio_write+0x0/0xb4
> Oct 18 19:36:54 vano-home kernel: [<c1070ba4>] ? vfs_writev+0x37/0x43
> Oct 18 19:36:54 vano-home kernel: [<c1070c57>] ? sys_writev+0x3c/0x63
> Oct 18 19:36:54 vano-home kernel: [<c10028b5>] ? syscall_call+0x7/0xb
> Oct 18 19:36:54 vano-home kernel: Code:  Bad EIP value.
> Oct 18 19:36:54 vano-home kernel: EIP: [<00000000>] 0x0 SS:ESP 0068:f5e11d68
> Oct 18 19:36:54 vano-home kernel: CR2: 0000000000000000
> Oct 18 19:36:54 vano-home kernel: ---[ end trace 6fb99b9e03ca0be6 ]---

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