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Old 09-29-2008, 08:12 PM
Andrew Perrin
 
Default General Protection Fault in openafs, 2.6.25 and 2.6.26 kernels

Using debian testing (lenny) and self-compiled 2.6.25 or 2.6.26 kernels, I
get the following GPF:


Sep 29 16:08:47 che kernel: general protection fault: 0000 [#1] SMP
Sep 29 16:08:47 che kernel: Modules linked in: piix ide_cd_mod ide_core pata_mpiix radeon drm openafs(P) rfcomm l2cap bluetooth video backlight output fan ac acpi_cpufreq cpufreq_ondemand cpufreq_powersave cpufreq_conservative cpufreq_userspace usbhid usb_storage libusual i2c_i801 snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm ehci_hcd snd_timer uhci_hcd usbcore intel_agp snd agpgart thermal processor thermal_sys hwmon button soundcore snd_page_alloc
Sep 29 16:08:47 che kernel:
Sep 29 16:08:47 che kernel: Pid: 3459, comm: afsd Tainted: P (2.6.26 #1)
Sep 29 16:08:47 che kernel: EIP: 0060:[<c0362df7>] EFLAGS: 00010282 CPU: 1
Sep 29 16:08:47 che kernel: EIP is at _read_lock+0x0/0xc
Sep 29 16:08:47 che kernel: EAX: fffffffe EBX: 00000010 ECX: 00000002 EDX: 00000000
Sep 29 16:08:47 che kernel: ESI: fffffffe EDI: 48e135cf EBP: 48e13574 ESP: f569ff7c
Sep 29 16:08:47 che kernel: DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
Sep 29 16:08:47 che kernel: Process afsd (pid: 3459, ti=f569e000 task=f7403960 task.ti=f569e000)
Sep 29 16:08:47 che kernel: Stack: f94ce7c5 00000010 f569ffb8 f94d4deb 48e133f4 48e135cf f94c3745 00000001
Sep 29 16:08:47 che kernel: 0000008d 48e121ad 48e13561 48e1223a 48e13598 00750420 48e13574 00000000
Sep 29 16:08:47 che kernel: 00000001 f569bd9c 00000000 00000000 f95130ee f7403b48 f951b33d 0000007b
Sep 29 16:08:47 che kernel: Call Trace:
Sep 29 16:08:47 che kernel: [<f94ce7c5>] afs_osi_TraverseProcTable+0x12/0x5e [openafs]
Sep 29 16:08:47 che kernel: [<f94d4deb>] afs_GCPAGs+0x9e/0x164 [openafs]
Sep 29 16:08:47 che kernel: [<f94c3745>] afs_Daemon+0x4ce/0x512 [openafs]
Sep 29 16:08:47 che kernel: [<f95130ee>] afsd_thread+0x484/0x656 [openafs]
Sep 29 16:08:47 che kernel: [<f9512c6a>] afsd_thread+0x0/0x656 [openafs]
Sep 29 16:08:47 che kernel: [<c01039e3>] kernel_thread_helper+0x7/0x14
Sep 29 16:08:47 che kernel: =======================
Sep 29 16:08:47 che kernel: Code: d0 c3 f0 ff 00 31 d2 89 d0 c3 89 c2 f0 81 28 00 00 00 01 0f 94 c0 b9 01 00 00 00 84 c0 75 09 f0 81 02 00 00 00 01 31 c9 89 c8 c3 <f0> 83 28 01 79 05 e8 5a ff ff ff c3 9c 5a fa b9 00 01 00 00 f0
Sep 29 16:08:47 che kernel: EIP: [<c0362df7>] _read_lock+0x0/0xc SS:ESP 0068:f569ff7c
Sep 29 16:08:47 che kernel: ---[ end trace fafab553494f8e83 ]---




This does *not* happen using 2.6.24 compiled with essentially the same
.config file. Using the latest openafs-modules-source: 1.4.7.dfsg1-5.




Any adivce? Thanks.

----------------------------------------------------------------------
Andrew J Perrin - andrew_perrin (at) unc.edu - http://perrin.socsci.unc.edu
Associate Professor of Sociology; Book Review Editor, _Social Forces_
University of North Carolina - CB#3210, Chapel Hill, NC 27599-3210 USA



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Old 09-29-2008, 08:51 PM
"Eugene V. Lyubimkin"
 
Default General Protection Fault in openafs, 2.6.25 and 2.6.26 kernels

Andrew Perrin wrote:
> Using debian testing (lenny) and self-compiled 2.6.25 or 2.6.26 kernels,
> I get the following GPF:
[GPF trace snip]
> This does *not* happen using 2.6.24 compiled with essentially the same
> .config file. Using the latest openafs-modules-source: 1.4.7.dfsg1-5.
>
> Any adivce? Thanks.
I think you should 'reportbug' it as soon as possible to Debian BTS.

--
Eugene V. Lyubimkin aka JackYF, Ukrainian C++ developer.
 
Old 09-29-2008, 09:07 PM
Richard A Nelson
 
Default General Protection Fault in openafs, 2.6.25 and 2.6.26 kernels

On Mon, 29 Sep 2008, Andrew Perrin wrote:

Using debian testing (lenny) and self-compiled 2.6.25 or 2.6.26 kernels, I
get the following GPF:


Sep 29 16:08:47 che kernel: general protection fault: 0000 [#1] SMP

...

Sep 29 16:08:47 che kernel: Call Trace:
Sep 29 16:08:47 che kernel: [<f94ce7c5>] afs_osi_TraverseProcTable+0x12/0x5e
[openafs]

Sep 29 16:08:47 che kernel: [<f94d4deb>] afs_GCPAGs+0x9e/0x164 [openafs]
Sep 29 16:08:47 che kernel: [<f94c3745>] afs_Daemon+0x4ce/0x512 [openafs]
Sep 29 16:08:47 che kernel: [<f95130ee>] afsd_thread+0x484/0x656 [openafs]
Sep 29 16:08:47 che kernel: [<f9512c6a>] afsd_thread+0x0/0x656 [openafs]
Sep 29 16:08:47 che kernel: [<c01039e3>] kernel_thread_helper+0x7/0x14
Sep 29 16:08:47 che kernel: =======================

...


This does *not* happen using 2.6.24 compiled with essentially the same
.config file. Using the latest openafs-modules-source: 1.4.7.dfsg1-5.


Odd... I'm on Sid, openafs 1.4.7-dfsg1-5 and 2.6.26.5 without issues

The failing function seems like maybe you didn't enable some legacy
proc stuff that OpenAFS may be depending upon
--
Rick Nelson
#if _FP_W_TYPE_SIZE < 32
#error "Here's a nickel kid. Go buy yourself a real computer."
#endif
-- linux/arch/sparc64/double.h


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Old 10-02-2008, 05:06 PM
Andrew Perrin
 
Default General Protection Fault in openafs, 2.6.25 and 2.6.26 kernels

Update: this issue is now bug 500850 in openafs-modules-source. The
solution is to set the following in the kernel .config:


CONFIG_KEYS=y
CONFIG_KEYS_DEBUG_PROC_KEYS=y
CONFIG_SECURITY=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_CAPABILITIES=y


----------------------------------------------------------------------
Andrew J Perrin - andrew_perrin (at) unc.edu - http://perrin.socsci.unc.edu
Associate Professor of Sociology; Book Review Editor, _Social Forces_
University of North Carolina - CB#3210, Chapel Hill, NC 27599-3210 USA




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