bug report: reiser4 + kde4

["\"Sven Müller\"" <musv@gmx.de>]

Hi,

according to my post in http://forums.gentoo.org/viewtopic-t-614771.html I was told to file that bug report to you.

Scenario: 
I tried to install KDE4-svn on a PentiumIII notebook. The root partition on that notebook runs on a reiser4 partition. The partition was created without any additional options (no compress or encryption). After starting KDE4 I get that kernel oops.

Reproducable: always. 
Steps to reproduce: Install kde4-svn on an reiser4 partition and start gdm, select kde4-svn and wait for a few seconds until kde4 stops loading. 

dmesg:
...
agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V2 device at 0000:00:00.0 into 4x mode
agpgart: Putting AGP V2 device at 0000:01:00.0 into 4x mode
[drm] Setting GART location based on new memory map
[drm] writeback test succeeded in 1 usecs
BUG: unable to handle kernel NULL pointer dereference at virtual address 0000016                                                                                                c
 printing eip:
c019a041
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: sr_mod pcmcia cdrom
CPU:    0
EIP:    0060:[<c019a041>]    Not tainted VLI
EFLAGS: 00210296   (2.6.23-gentoo-r1 #1)
EIP is at reiser4_get_tree+0x0/0xa
eax: 00000000   ebx: d72a2454   ecx: 00000000   edx: 00000000
esi: d72a2400   edi: 00000000   ebp: 00000000   esp: d71a3d98
ds: 007b   es: 007b   fs: 0000  gs: 0033  ss: 0068
Process kded4 (pid: 6713, ti=d71a2000 task=d8674530 task.ti=d71a2000)
Stack: c01b7fac 00000000 00000175 d72a2400 00000000 d72a24b4 d71a3e44 00000000
       088e9c44 d72a24c4 2d69636f 006b6465 0088e9c5 00000000 00000174 00000000
       088e9c44 00000000 2d69636f 006b6465 0088e9c5 00000000 00000000 00000000
Call Trace:
 [<c01b7fac>] reiser4_write_extent+0x23/0x4bb
 [<c01a473a>] setattr_unix_file+0x182/0x393
 [<c0157415>] nameidata_to_filp+0x24/0x33
 [<c0168c52>] mntput_no_expire+0x13/0x50
 [<c0167dd1>] notify_change+0xf5/0x20c
 [<c0157b05>] do_truncate+0x5e/0x75
 [<c0157e00>] do_sys_truncate+0x15f/0x17a
 [<c0158f62>] generic_file_llseek+0x0/0x82
 [<c0221b3e>] copy_to_user+0x25/0x3b
 [<c0159188>] sys_llseek+0x65/0x87
 [<c0103be2>] sysenter_past_esp+0x5f/0x85
 =======================
Code: 83 c0 10 c3 8b 80 6c 01 00 00 8b 80 58 01 00 00 c3 8b 80 6c 01 00 00 8b 80                                                                                                 60 01 00 00 c3 8b 80 6c 01 00 00 8b 80 5c 01 00 00 c3 <8b> 80 6c 01 00 00 83 c0                                                                                                 14 c3 85 c0 89 c2 74 19 8b 80 6c 01 00
EIP: [<c019a041>] reiser4_get_tree+0x0/0xa SS:ESP 0068:d71a3d98
reiser4[kded4(6713)]: release_unix_file (fs/reiser4/plugin/file/file.c:2409)[vs-                                                                                                44]:
WARNING: out of memory?
reiser4[kded4(6713)]: release_unix_file (fs/reiser4/plugin/file/file.c:2409)[vs-                                                                                                44]:
WARNING: out of memory?
reiser4[kded4(6713)]: release_unix_file (fs/reiser4/plugin/file/file.c:2409)[vs-                                                                                                44]:
WARNING: out of memory?
reiser4[kded4(6713)]: release_unix_file (fs/reiser4/plugin/file/file.c:2409)[vs-                                                                                                44]:
... 


Linux configuration:
Portage 2.1.3.19 (default-linux/x86/2007.0/desktop, gcc-4.2.2, glibc-2.7-r0, 2.6.23-gentoo-r1 i686)
=================================================================
System uname: 2.6.23-gentoo-r1 i686 Mobile Intel(R) Pentium(R) III CPU - M 1000MHz
Timestamp of tree: Fri, 19 Oct 2007 12:00:08 +0000
distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [enabled]
app-shells/bash:     3.2_p17-r1
dev-java/java-config: 1.3.7, 2.1.2-r1
dev-lang/python:     2.5.1-r3
sys-apps/baselayout: 1.12.10-r5
sys-apps/sandbox:    1.2.18.1-r2
sys-devel/autoconf:  2.13, 2.61-r1
sys-devel/automake:  1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils:  2.18-r1
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool:   1.5.24
virtual/os-headers:  2.6.23
ACCEPT_KEYWORDS="x86 ~x86"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=pentium3 -Os -pipe -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
CXXFLAGS="-march=pentium3 -Os -pipe -fomit-frame-pointer" 

Maybe it helps to you. I downgraded to kde-3.5.8, so for me no problem. kde3 with cache dir on tmpfs works pretty well on reiser4. 

Greetings
Sven
-- 
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