Greetings,
I received the below upon first poke of firefox icon after a resume.
See attachment (evolution refuses to inline it).
BUG: unable to handle kernel NULL pointer dereference at virtual address 00000002
printing eip:
c109a7cf
*pde = 00000000
Oops: 0000 [#1]
PREEMPT SMP
Modules linked in: xt_pkttype ipt_LOG xt_limit snd_pcm_oss snd_mixer_oss eeprom snd_seq_midi snd_seq_midi_event snd_seq edd button battery ac ip6t_REJECT xt_tcpudp ipt_REJECT xt_state iptable_mangle iptable_nat ip_nat iptable_filter ip6table_mangle ip_conntrack nfnetlink ip_tables ip6table_filter ip6_tables x_tables nls_iso8859_1 nls_cp437 nls_utf8 snd_mpu401 snd_mpu401_uart snd_rawmidi snd_seq_device ohci1394 ieee1394 prism54 snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc intel_agp agpgart i2c_i801 sd_mod fan thermal processor
CPU: 0
EIP: 0060:[<c109a7cf>] Not tainted VLI
EFLAGS: 00010246 (2.6.19.2-smp #90)
EIP is at inotify_inode_queue_event+0x51/0xd1
eax: c1599288 ebx: 00000fc6 ecx: 00000000 edx: 00000002
esi: c1599280 edi: fffffffa ebp: ef38bf58 esp: ef38bf28
ds: 007b es: 007b ss: 0068
Process klauncher (pid: 6283, ti=ef38b000 task=dff91030 task.ti=ef38b000)
Stack: dfc998c0 c1e4f1c0 ef38bf58 00000000 00000020 f346ac68 00000000 0000000c
f346ac60 dba1cd50 f346cf70 f346ab28 ef38bf80 c109aea9 dba1cdb4 ec421998
00000000 00000020 dba1cd58 00000020 ea829000 0000000c ef38bfa8 c1070f3b
Call Trace:
[<c109aea9>] inotify_dentry_parent_queue_event+0x69/0xa0
[<c1070f3b>] do_sys_open+0x83/0xc5
[<c1070fb5>] sys_open+0x1c/0x1e
[<c10030d9>] sysenter_past_esp+0x56/0x79
[<b7f9f410>] 0xb7f9f410
=======================
Code: 5e 5f 5d c3 8d 83 40 01 00 00 89 45 e4 e8 5a ee 2f 00 8b b3 38 01 00 00 83 ee 08 8b 56 08 8d 46 08 39 45 f0 74 69 8d 7a f8 eb 10 <8b> 57 08 8d 47 08 3b 45 f0 74 59 89 fe 8d 7a f8 8b 5e 20 85 5d
EIP: [<c109a7cf>] inotify_inode_queue_event+0x51/0xd1 SS:ESP 0068:ef38bf28
BUG: unable to handle kernel NULL pointer dereference at virtual address 00000002
printing eip:
c109a7cf
*pde = 00000000
Oops: 0000 [#1]
PREEMPT SMP
Modules linked in: xt_pkttype ipt_LOG xt_limit snd_pcm_oss snd_mixer_oss eeprom snd_seq_midi snd_seq_midi_event snd_seq edd button battery ac ip6t_REJECT xt_tcpudp ipt_REJECT xt_state iptable_mangle iptable_nat ip_nat iptable_filter ip6table_mangle ip_conntrack nfnetlink ip_tables ip6table_filter ip6_tables x_tables nls_iso8859_1 nls_cp437 nls_utf8 snd_mpu401 snd_mpu401_uart snd_rawmidi snd_seq_device ohci1394 ieee1394 prism54 snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc intel_agp agpgart i2c_i801 sd_mod fan thermal processor
CPU: 0
EIP: 0060:[<c109a7cf>] Not tainted VLI
EFLAGS: 00010246 (2.6.19.2-smp #90)
EIP is at inotify_inode_queue_event+0x51/0xd1
eax: c1599288 ebx: 00000fc6 ecx: 00000000 edx: 00000002
esi: c1599280 edi: fffffffa ebp: ef38bf58 esp: ef38bf28
ds: 007b es: 007b ss: 0068
Process klauncher (pid: 6283, ti=ef38b000 task=dff91030 task.ti=ef38b000)
Stack: dfc998c0 c1e4f1c0 ef38bf58 00000000 00000020 f346ac68 00000000 0000000c
f346ac60 dba1cd50 f346cf70 f346ab28 ef38bf80 c109aea9 dba1cdb4 ec421998
00000000 00000020 dba1cd58 00000020 ea829000 0000000c ef38bfa8 c1070f3b
Call Trace:
[<c109aea9>] inotify_dentry_parent_queue_event+0x69/0xa0
[<c1070f3b>] do_sys_open+0x83/0xc5
[<c1070fb5>] sys_open+0x1c/0x1e
[<c10030d9>] sysenter_past_esp+0x56/0x79
[<b7f9f410>] 0xb7f9f410
=======================
Code: 5e 5f 5d c3 8d 83 40 01 00 00 89 45 e4 e8 5a ee 2f 00 8b b3 38 01 00 00 83 ee 08 8b 56 08 8d 46 08 39 45 f0 74 69 8d 7a f8 eb 10 <8b> 57 08 8d 47 08 3b 45 f0 74 59 89 fe 8d 7a f8 8b 5e 20 85 5d
EIP: [<c109a7cf>] inotify_inode_queue_event+0x51/0xd1 SS:ESP 0068:ef38bf28
gdb vmlinux -core /proc/kcore
(gdb) list *inotify_inode_queue_event+0x51
0xc109a7cf is in inotify_inode_queue_event (fs/inotify.c:294).
289
290 if (!inotify_inode_watched(inode))
291 return;
292
293 mutex_lock(&inode->inotify_mutex);
294 list_for_each_entry_safe(watch, next, &inode->inotify_watches, i_list) {
295 u32 watch_mask = watch->mask;
296 if (watch_mask & mask) {
297 struct inotify_handle *ih= watch->ih;
298 mutex_lock(&ih->mutex);
(gdb) x 0x8+0xc1599280
0xc1599288 <new_cpu_data+8>: 0x00000002
/me: new_cpu_data?
(gdb) x 0xc1599280+0x20
0xc15992a0 <new_cpu_data+32>: 0x00000fc6
(gdb) x 0xef38bf58
0xef38bf58: 0x00000000
(gdb) print new_cpu_data
$1 = {x86 = 15 '\017', x86_vendor = 151 '\227', x86_model = 2 '\002',
x86_mask = 9 '\t', wp_works_ok = 88 'X', hlt_works_ok = -110 '\222',
hard_math = 1 '\001', rfu = -63 '¿, cpuid_level = 2, x86_capability = {
3219913727, 1, 3844256384, 4081494824, 4, 4038, 4145066816},
x86_vendor_id = "GenuineIntelp\n¿,
x86_model_id = "\001\000\000\000\200\"¿\n¿002\000\000\000¿017\000\000", '¿ <repeats 44 times>, x86_cache_size = -858993460,
x86_cache_alignment = -858993460, fdiv_bug = -52 '¿, f00f_bug = -52 '¿,
coma_bug = -52 '¿, pad0 = -52 '¿, x86_power = -858993460,
loops_per_jiffy = 3435973836, llc_shared_map = {bits = {3435973836}},
x86_max_cores = 204 '¿, apicid = 204 '¿, booted_cores = 204 '¿,
phys_proc_id = 204 '¿, cpu_core_id = 204 '¿}
(gdb)
/me: ("G-e-n-u")... eject!
0000030e <inotify_inode_queue_event>:
30e: 55 push %ebp
30f: 89 e5 mov %esp,%ebp
311: 57 push %edi
312: 56 push %esi
313: 53 push %ebx
314: 83 ec 24 sub $0x24,%esp
317: 89 c3 mov %eax,%ebx
319: 89 55 e0 mov %edx,0xffffffe0(%ebp)
31c: 89 4d dc mov %ecx,0xffffffdc(%ebp)
31f: 8d 80 38 01 00 00 lea 0x138(%eax),%eax
325: 89 45 f0 mov %eax,0xfffffff0(%ebp)
328: 3b 83 38 01 00 00 cmp 0x138(%ebx),%eax
32e: 75 08 jne 338 <inotify_inode_queue_event+0x2a>
330: 83 c4 24 add $0x24,%esp
333: 5b pop %ebx
334: 5e pop %esi
335: 5f pop %edi
336: 5d pop %ebp
337: c3 ret
338: 8d 83 40 01 00 00 lea 0x140(%ebx),%eax
33e: 89 45 e4 mov %eax,0xffffffe4(%ebp)
341: e8 fc ff ff ff call 342 <inotify_inode_queue_event+0x34>
346: 8b b3 38 01 00 00 mov 0x138(%ebx),%esi
34c: 83 ee 08 sub $0x8,%esi
34f: 8b 56 08 mov 0x8(%esi),%edx
352: 8d 46 08 lea 0x8(%esi),%eax
355: 39 45 f0 cmp %eax,0xfffffff0(%ebp)
358: 74 69 je 3c3 <inotify_inode_queue_event+0xb5>
35a: 8d 7a f8 lea 0xfffffff8(%edx),%edi
35d: eb 10 jmp 36f <inotify_inode_queue_event+0x61>
35f: 8b 57 08 mov 0x8(%edi),%edx <=== boom
362: 8d 47 08 lea 0x8(%edi),%eax
365: 3b 45 f0 cmp 0xfffffff0(%ebp),%eax
368: 74 59 je 3c3 <inotify_inode_queue_event+0xb5>
36a: 89 fe mov %edi,%esi
36c: 8d 7a f8 lea 0xfffffff8(%edx),%edi
36f: 8b 5e 20 mov 0x20(%esi),%ebx
372: 85 5d e0 test %ebx,0xffffffe0(%ebp)
375: 74 e8 je 35f <inotify_inode_queue_event+0x51>
377: 8b 46 14 mov 0x14(%esi),%eax
37a: 89 45 ec mov %eax,0xffffffec(%ebp)
37d: 83 c0 18 add $0x18,%eax
380: 89 45 e8 mov %eax,0xffffffe8(%ebp)
383: e8 fc ff ff ff call 384 <inotify_inode_queue_event+0x76>
388: 85 db test %ebx,%ebx
38a: 78 47 js 3d3 <inotify_inode_queue_event+0xc5>
38c: 8b 45 ec mov 0xffffffec(%ebp),%eax
38f: 8b 58 3c mov 0x3c(%eax),%ebx
392: 8b 56 1c mov 0x1c(%esi),%edx
395: 8b 45 0c mov 0xc(%ebp),%eax
398: 89 44 24 08 mov %eax,0x8(%esp)
39c: 8b 45 08 mov 0x8(%ebp),%eax
39f: 89 44 24 04 mov %eax,0x4(%esp)
3a3: 8b 45 dc mov 0xffffffdc(%ebp),%eax
3a6: 89 04 24 mov %eax,(%esp)
3a9: 8b 4d e0 mov 0xffffffe0(%ebp),%ecx
3ac: 89 f0 mov %esi,%eax
3ae: ff 13 call *(%ebx)
3b0: 8b 45 e8 mov 0xffffffe8(%ebp),%eax
3b3: e8 fc ff ff ff call 3b4 <inotify_inode_queue_event+0xa6>
3b8: 8b 57 08 mov 0x8(%edi),%edx
3bb: 8d 47 08 lea 0x8(%edi),%eax
3be: 3b 45 f0 cmp 0xfffffff0(%ebp),%eax
3c1: 75 a7 jne 36a <inotify_inode_queue_event+0x5c>
3c3: 8b 45 e4 mov 0xffffffe4(%ebp),%eax
3c6: e8 fc ff ff ff call 3c7 <inotify_inode_queue_event+0xb9>
3cb: 83 c4 24 add $0x24,%esp
3ce: 5b pop %ebx
3cf: 5e pop %esi
3d0: 5f pop %edi
3d1: 5d pop %ebp
3d2: c3 ret
3d3: 8b 55 ec mov 0xffffffec(%ebp),%edx
3d6: 89 f0 mov %esi,%eax
3d8: e8 cd fe ff ff call 2aa <remove_watch_no_event>
3dd: eb ad jmp 38c <inotify_inode_queue_event+0x7e>
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