Kernel Ooops when using kdesu

["\"Sven Müller\"" <musv@gmx.de>]

Hi Edward, 

according to the advice in Gentoo Forums: 

http://forums.gentoo.org/viewtopic-t-845764.html

I'll send you the bug report. 

Behaviour: 
When I try start a program via kdesu (KDE4) I'll get a Kernel Ooops. It's reproducible. The Ooops occurs on x86 and amd64. I've tested it on 2.6.34 and on 2.6.35 (r1 and r5). And until now it seems that only kdesu is affected. 

Configuration:
Kernel: Gentoo-Sources-2.6.35-r5
Root Device is Reiser4
Reiser4 Patch is from Kernel.org (Reiser4-for-2.6.35.patch)
CPU: x86
The Posting in Gentoo Forums (Link) is from a amd64. 

/var/log/messages:

Oct  7 22:26:32 localhost kernel: BUG: unable to handle kernel NULL pointer dereference at (null)
Oct  7 22:26:32 localhost kernel: IP: [<c01b846a>] checkin_logical_cluster+0xb1/0x176
Oct  7 22:26:32 localhost kernel: *pde = 00000000 
Oct  7 22:26:32 localhost kernel: Oops: 0000 [#1] 
Oct  7 22:26:32 localhost kernel: last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
Oct  7 22:26:32 localhost kernel: Modules linked in: pcmcia
Oct  7 22:26:32 localhost kernel: 
Oct  7 22:26:32 localhost kernel: Pid: 2306, comm: kio_file Not tainted 2.6.35-gentoo-r5 #2 Latitude C610            /Latitude C610                   
Oct  7 22:26:32 localhost kernel: EIP: 0060:[<c01b846a>] EFLAGS: 00010246 CPU: 0
Oct  7 22:26:32 localhost kernel: EIP is at checkin_logical_cluster+0xb1/0x176
Oct  7 22:26:32 localhost kernel: EAX: 00000001 EBX: c9176d58 ECX: 00000000 EDX: 00000000
Oct  7 22:26:32 localhost kernel: ESI: 00000000 EDI: 00000000 EBP: cb572eb4 ESP: c9176d14
Oct  7 22:26:32 localhost kernel: DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
Oct  7 22:26:32 localhost kernel: Process kio_file (pid: 2306, ti=c9176000 task=cb376360 task.ti=c9176000)
Oct  7 22:26:32 localhost kernel: Stack:
Oct  7 22:26:32 localhost kernel: 00000000 c9176d58 00000000 cb572eb4 00000000 c9176d58 00000000 cb572eb4
Oct  7 22:26:32 localhost kernel: <0> 00000000 c01bacff 00000000 c9192100 00000000 0000000d cb572eb4 c01baf36
Oct  7 22:26:32 localhost kernel: <0> fffffff4 00000000 00000000 00000000 00000000 00000001 00000000 00000000
Oct  7 22:26:32 localhost kernel: Call Trace:
Oct  7 22:26:32 localhost kernel: [<c01bacff>] ? capture_page_cluster+0xa2/0xc7
Oct  7 22:26:32 localhost kernel: [<c01baf36>] ? write_end_cryptcompress+0x212/0x222
Oct  7 22:26:32 localhost kernel: [<c01b7455>] ? reiser4_write_end_careful+0xe8/0x153
Oct  7 22:26:32 localhost kernel: [<c0148127>] ? pagecache_write_end+0x37/0x3e
Oct  7 22:26:32 localhost kernel: [<c01ac107>] ? reiser4_dirty_inode+0x8/0x59
Oct  7 22:26:32 localhost kernel: [<c017c356>] ? pipe_to_file+0x109/0x114
Oct  7 22:26:32 localhost kernel: [<c01ac107>] ? reiser4_dirty_inode+0x8/0x59
Oct  7 22:26:32 localhost kernel: [<c01ac107>] ? reiser4_dirty_inode+0x8/0x59
Oct  7 22:26:32 localhost kernel: [<c017b3ff>] ? splice_from_pipe_feed+0x31/0x9e
Oct  7 22:26:32 localhost kernel: [<c017c24d>] ? pipe_to_file+0x0/0x114
Oct  7 22:26:32 localhost kernel: [<c017c1c0>] ? generic_file_splice_write+0xa2/0x12f
Oct  7 22:26:32 localhost kernel: [<c017c11e>] ? generic_file_splice_write+0x0/0x12f
Oct  7 22:26:32 localhost kernel: [<c017bca0>] ? vfs_splice_from+0x53/0x5a
Oct  7 22:26:32 localhost kernel: [<c017c093>] ? direct_splice_actor+0x14/0x18
Oct  7 22:26:32 localhost kernel: [<c017bb35>] ? splice_direct_to_actor+0xbe/0x172
Oct  7 22:26:32 localhost kernel: [<c017c07f>] ? direct_splice_actor+0x0/0x18
Oct  7 22:26:32 localhost kernel: [<c017bc34>] ? do_splice_direct+0x4b/0x64
Oct  7 22:26:32 localhost kernel: [<c0166440>] ? do_sendfile+0x16c/0x1b5
Oct  7 22:26:32 localhost kernel: [<c01664c9>] ? sys_sendfile64+0x40/0x86
Oct  7 22:26:32 localhost kernel: [<c0102510>] ? sysenter_do_call+0x12/0x26
Oct  7 22:26:32 localhost kernel: Code: 01 74 09 31 f6 83 f8 02 75 1e eb 05 8b 73 3c eb 17 8b 43 0c 31 ff 8b 70 04 03 30 81 c6 ff 0f 00 00 83 d7 00 0f ac fe 0c 8b 7b 48 <8b> 07 f6 c4 01 74 24 89 e8 e8 2f 4a fe ff e8 ac a3 fe ff 8b 4b 
Oct  7 22:26:32 localhost kernel: EIP: [<c01b846a>] checkin_logical_cluster+0xb1/0x176 SS:ESP 0068:c9176d14
Oct  7 22:26:32 localhost kernel: CR2: 0000000000000000
Oct  7 22:26:32 localhost kernel: ---[ end trace 401667030bed02db ]---


addr2line -e /usr/src/linux/vmlinux -i c01b846a:

/usr/src/linux/fs/reiser4/plugin/file/cryptcompress.c:1722
/usr/src/linux/fs/reiser4/plugin/file/cryptcompress.c:1780

Let me know if you need any further information. I would be glad if I could help you. 

Thx 
Sven
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