here some more usefull output: [ 86.385269] Unable to handle kernel NULL pointer dereference at 00000000000000f9 RIP: [ 86.385273] [<ffffffff802ebf2a>] reiser4_tree_by_inode+0x0/0xc [ 86.385279] PGD 779ce067 PUD 779cf067 PMD 0 [ 86.385281] Oops: 0000 [1] SMP [ 86.385283] CPU 1 [ 86.385285] Modules linked in: k8temp w83627ehf hwmon_vid hwmon i2c_core snd_seq_midi snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_pcm_oss snd_mixer_oss snd_seq_oss snd_seq_midi_event snd_seq snd_emu10k1 snd_rawmidi snd_ac97_codec ac97_bus snd_pcm snd_seq_device snd_timer snd_page_alloc snd_util_mem snd_hwdep snd r8169 [ 86.385297] Pid: 4080, comm: kded4 Not tainted 2.6.23.9reiser4 #4 [ 86.385299] RIP: 0010:[<ffffffff802ebf2a>] [<ffffffff802ebf2a>] reiser4_tree_by_inode+0x0/0xc [ 86.385302] RSP: 0018:ffff8100779d7b90 EFLAGS: 00010292 [ 86.385303] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff8100779d7d78 [ 86.385305] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 86.385306] RBP: 0000000000000000 R08: 0000000000000003 R09: ffff8100774387b0 [ 86.385308] R10: c0000000000000fa R11: ffffffff802f26e6 R12: ffff810077438738 [ 86.385310] R13: ffff8100774386c0 R14: 00000000006d6090 R15: 0000000000000000 [ 86.385311] FS: 00002acd1b378330(0000) GS:ffff81007ff3bec0(0000) knlGS:0000000000000000 [ 86.385313] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.385314] CR2: 00000000000000f9 CR3: 00000000779cd000 CR4: 00000000000006e0 [ 86.385316] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.385318] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 86.385320] Process kded4 (pid: 4080, threadinfo ffff8100779d6000, task ffff81007d6ed8a0) [ 86.385321] Stack: ffffffff80308779 ffff810000000001 ffff8100779d7d78 00000000006d6090 [ 86.385324] ffff8100779d7c68 ffff8100779d7c48 0000000000000001 ffff81007b7f6ef8 [ 86.385327] ffffffff802e0522 ffff810077438738 0000000100000001 0000017500000000 [ 86.385329] Call Trace: [ 86.385332] [<ffffffff80308779>] reiser4_write_extent+0x36/0x577 [ 86.385336] [<ffffffff802e0522>] reiser4_txn_end+0x49a/0x4e9 [ 86.385343] [<ffffffff802f4fbd>] setattr_unix_file+0x174/0x32e [ 86.385348] [<ffffffff802dca2d>] _reiser4_init_context+0x72/0xa3 [ 86.385351] [<ffffffff802f76cc>] reiser4_setattr_careful+0x100/0x125 [ 86.385354] [<ffffffff802895ed>] notify_change+0x122/0x235 [ 86.385358] [<ffffffff80276502>] do_truncate+0x5e/0x79 [ 86.385360] [<ffffffff8027ede2>] getname+0x14c/0x18d [ 86.385363] [<ffffffff8027675f>] sys_truncate+0x144/0x166 [ 86.385365] [<ffffffff80268e8c>] do_mmap_pgoff+0x29d/0x2fd [ 86.385370] [<ffffffff8044273d>] error_exit+0x0/0x84 [ 86.385373] [<ffffffff8020b66e>] system_call+0x7e/0x83 [ 86.385375] [ 86.385376] [ 86.385377] Code: 48 8b bf f8 00 00 00 e9 5a d8 ff ff 48 b8 ff ff ff ff ff ff [ 86.385382] RIP [<ffffffff802ebf2a>] reiser4_tree_by_inode+0x0/0xc [ 86.385385] RSP <ffff8100779d7b90> [ 86.385386] CR2: 00000000000000f9 [ 86.385902] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385904] WARNING: out of memory? [ 86.385914] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385915] WARNING: out of memory? [ 86.385922] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385923] WARNING: out of memory? [ 86.385930] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385931] WARNING: out of memory? [ 86.385938] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385940] WARNING: out of memory? [ 86.385947] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385948] WARNING: out of memory? [ 86.385955] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385956] WARNING: out of memory? [ 86.385963] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385964] WARNING: out of memory? [ 86.385971] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385972] WARNING: out of memory? [ 86.385979] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385981] WARNING: out of memory? [ 86.385987] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385989] WARNING: out of memory? [ 86.385996] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.385997] WARNING: out of memory? [ 86.386362] reiser4[kded4(4080)]: release_unix_file (fs/reiser4/plugin/file/file.c:2373)[vs-44]: [ 86.386363] WARNING: out of memory? also, with reiser4 debugging turned on, kernel panics when starting KDE4. Glück Auf Volker - To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html