Latest working kernel version: v2.6.28 Earliest failing kernel version: v2.6.28-6387-gf59abb1 (f59abb161c955b68fd3d473368420c5919733e09) Distribution: Ubuntu 8.10 Hardware Environment: Dell XPS M1330 Software Environment: iwl3945 firmware: iwlwifi-3945-2.ucode wpa_supplicant 0.6.4-2 of Ubuntu 8.10 Problem Description: I wasn't able to get complete oops in the logs, so below is only the transcript of the images I took with a camera. I'll attach the images, bzImage/System.map and .config later. iwl3945: Error: Response NULL in 'REPLY_ADD_STA' general protection fault: 0000 [#1] PREEMPT SMP last sysfs file: /sys/devices/virtual/backlight/acpi_video0/brightness CPU 1 Modules linked in: ip6table_filter binfmt_misc cpufreq_userspace iptable_filter dm_crypt dm_mod sbp2 uvcvideo videodev serio_raw ohci1394 v4l1_compat v4l2_compat_ioctl32 ieee1394 video Pid: 3020, comm: wpa_supplicant Not tainted 2.6.28-t #148 ... Call Trace: [<ffffffff8024852a>] synchronize_rcu+0x35/0x4c [<ffffffffXXXXXXXX>] ? wakeme_after_rcu+0x0/0xf [<ffffffffXXXXXXXX>] ? local_bh_enable+0xbf/0xdb [<ffffffffXXXXXXXX>] ? dev_deactivate+0x122/0x17f [<ffffffffXXXXXXXX>] ? dev_close+0x76/0xa7 [<ffffffffXXXXXXXX>] ? dev_change_flags+0xba/0x181 [<ffffffffXXXXXXXX>] ? devinet_ioctl+0x278/0x605 [<ffffffffXXXXXXXX>] ? inet_ioctl+0x92/0xaa [<ffffffffXXXXXXXX>] ? sock_ioctl+0x1f3/0x21d [<ffffffffXXXXXXXX>] ? vfs_ioctl+0x2a/0x78 [<ffffffffXXXXXXXX>] ? do_vfs_ioctl+0x3bd/0x3eb [<ffffffffXXXXXXXX>] ? __fput+0x19f/0x1ac [<ffffffffXXXXXXXX>] ? sysret_check+0x27/0x62 [<ffffffffXXXXXXXX>] ? system_call_fastpath+0x16/0x1b Code: 3b 00 74 0e ff 0b b8 01 00 00 00 4d 85 e4 4c 0f 44 e0 4c 89 ef e8 be 30 00 00 48 83 c4 48 4c 89 e0 5b 41 5c 41 5d 41 5f c9 <c3> 49 c7 c4 00 fe ff ff eb ab 55 ba 82 00 00 00 48 89 e5 48 be RIP [<ffffffff80585a37>] wait_for_common+0x138/0x142 RSP <ffff880079b3fbe0> ---[ end trace ... ]--- Machine check events logged _ (cursor blinking, I think. Strangely, Ctrl-Alt-Del worked, but not Alt-SysRq-B. OTOH, that's a laptop, and I never managed to trigger SysRq reliably: I seem have to press that Fn button in exactly the right moment, which I haven't figured out yet) Steps to reproduce: Seen once!
Created attachment 19703 [details] bzImage, System.map, .config and compressed still images The original stills and binary modules available upon request.
Since there's an iwlwifi error at the first line, I'll blame that until somebody proves otherwise.
Alex, Isn't this duplicate of http://bugzilla.kernel.org/show_bug.cgi?id=11326 to which you already added a comment that the patch worked for you ? We will push that patch upstream.
It's possible (I obviously don't have that patch in this tree). Will retest, thanks for reminding.
Ok, seemed to help (IOW, I got the "Response 'NULL' in REPLY_ADD_STA" but didn't crash). Will continue testing.
The patch has been submitted upstream. http://marc.info/?l=linux-wireless&m=123143878214020&w=2 Could you please close this bug?