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[Bug 592886] New: frequent null deref in iwl_mac_reset_tsf forcing reboots
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Thu, 1 Apr 2010 00:21:02 +0000
  • Message-id: <bug-592886-21960@xxxxxxxxxxxxxxxxxxxxxxxx/>
http://bugzilla.novell.com/show_bug.cgi?id=592886

http://bugzilla.novell.com/show_bug.cgi?id=592886#c0


Summary: frequent null deref in iwl_mac_reset_tsf forcing
reboots
Classification: openSUSE
Product: openSUSE 11.2
Version: Final
Platform: x86
OS/Version: openSUSE 11.2
Status: NEW
Severity: Normal
Priority: P5 - None
Component: Kernel
AssignedTo: kernel-maintainers@xxxxxxxxxxxxxxxxxxxxxx
ReportedBy: toshok@xxxxxxxxxx
QAContact: qa@xxxxxxx
Found By: ---
Blocker: ---


User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.8)
Gecko/20100204 SUSE/3.5.8-0.1.1 Firefox/3.5.8

many times a day (today 5x times so far) I see this in the console (c&p from
syslog because once it happens very little actually works, and I can't c&p from
the terminal itself).

Mar 31 16:47:14 linux-pl2z kernel: [ 2237.119015] iwlagn 0000:0c:00.0:
Microcode HW error detected. Restarting.
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.192104] mac80211-phy0: failed to
remove key (0, 00:1c:b3:ad:8b:77) from hardware (-22)
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.193849] BUG: unable to handle kernel
NULL pointer dereference at 00000012
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.193912] IP: [<f97363d7>]
iwl_mac_reset_tsf+0xa7/0x2d0 [iwlcore]
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194051] *pdpt = 0000000032c08001 *pde
= 0000000000000000
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] Oops: 0000 [#1] PREEMPT SMP
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] last sysfs file:
/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] Modules linked in: nfs lockd
fscache nfs_acl auth_rpcgss sunrpc aes_i586 aes_generic af_packet ip6t_LOG
xt_tcpudp xt_pkttype xt_physdev ipt_LOG xt_limit rfcomm sco bridge stp llc bnep
l2cap snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device edd ip6t_REJECT
nf_conntrack_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT xt_state iptable_raw
iptable_filter cpufreq_conservative cpufreq_userspace ip6table_mangle
cpufreq_powersave nf_conntrack_netbios_ns nf_conntrack_ipv4 acpi_cpufreq
nf_conntrack nf_defrag_ipv4 ip_tables speedstep_lib ip6table_filter ip6_tables
x_tables microcode fuse loop dm_mod arc4 ecb cryptomgr aead pcompress
crypto_blkcipher ohci1394 crypto_hash dell_laptop uvcvideo videodev btusb
bluetooth crypto_algapi v4l1_compat dcdbas joydev pcspkr sr_mod sg cdrom
snd_hda_codec_idt sdhci_pci sdhci ieee1394 video option ac usbserial wmi
battery button mmc_core ricoh_mmc iwlagn iwlcore mac80211 tg3 snd_hda_intel
cfg80211 rfkill snd_hda_codec snd_hwdep snd_pcm snd_timer i2c_i8
Mar 31 16:47:14 linux-pl2z kernel: 01 iTCO_wdt iTCO_vendor_support snd
snd_page_alloc nvidia(P) intel_agp ext4 jbd2 crc16 fan processor
ide_pci_generic piix ide_core ata_generic thermal thermal_sys [last unloaded:
preloadtrace]
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090]
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] Pid: 509, comm: phy0 Tainted:
P (2.6.31.12-0.2-desktop #1) XPS M1330
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] EIP: 0060:[<f97363d7>]
EFLAGS: 00010046 CPU: 0
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] EIP is at
iwl_mac_reset_tsf+0xa7/0x2d0 [iwlcore]
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] EAX: 00000000 EBX: f1e809e0
ECX: f1e80f64 EDX: 00000000
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] ESI: f1e80f64 EDI: 00000282
EBP: f1ff9eec ESP: f1ff9ec4
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] DS: 007b ES: 007b FS: 00d8
GS: 00e0 SS: 0068
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] Process phy0 (pid: 509,
ti=f1ff8000 task=f1e383f0 task.ti=f1ff8000)
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] Stack:
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] 00000001 ad598bdc f146a340
f0923c20 f1ff9ee0 f1e80f70 ad598bdc f146a340
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] <0> f0923c20 f1e801a0
f1ff9f2c f969927c f146a554 0000000b 00000001 00000001
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] <0> f146a548 f146a554
f1e800a0 00000001 0000000b f146a554 ad598bdc f146a340
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] Call Trace:
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] [<f969927c>]
ieee80211_sta_config_auth+0x14c/0x330 [mac80211]
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] [<f969a30f>]
ieee80211_sta_work+0x11f/0x1e0 [mac80211]
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] [<c02689eb>]
run_workqueue+0x7b/0x190
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] [<c026a500>]
worker_thread+0x90/0x100
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] [<c026e3c4>]
kthread+0x84/0x90
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] [<c0204d8b>]
kernel_thread_helper+0x7/0x1c
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] Code: 00 00 00 89 c7 8b 83 c4
c0 00 00 85 c0 74 05 e8 e0 65 e8 c6 8b 83 d4 c0 00 00 c7 83 c4 c0 00 00 00 00
00 00 83 bb c0 c0 00 00 02 <0f> b7 40 12 c7 83 c8 c0 00 00 00 00 00 00 c7 83 cc
c0 00 00 00
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] EIP: [<f97363d7>]
iwl_mac_reset_tsf+0xa7/0x2d0 [iwlcore] SS:ESP 0068:f1ff9ec4
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] CR2: 0000000000000012
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] ---[ end trace
3fc013828dc59bfc ]---
Mar 31 16:47:14 linux-pl2z kernel: [ 2237.194090] note: phy0[509] exited with
preempt_count 1



Reproducible: Sometimes

Steps to Reproduce:
unfortunately there is nothing in common between occurrences. sometimes it
happens immediately upon me logging in, sometimes it happens after hours.

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