[Bug 654838] [NEW] gpf in b43_dma_handle_txstatus

Mon Oct 4 21:02:51 UTC 2010

Public bug reported:

Binary package hint: linux-image-2.6.32-25-generic

Oct  4 21:30:03 zogma kernel: [ 2668.887801] general protection fault: 0000 [#1] SMP 
Oct  4 21:30:03 zogma kernel: [ 2668.887821] last sysfs file: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT0/voltage_now
Oct  4 21:30:03 zogma kernel: [ 2668.887831] CPU 0 
Oct  4 21:30:03 zogma kernel: [ 2668.887837] Modules linked in: sco binfmt_misc bridge stp ppdev bnep dm_crypt l2cap snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event arc4 snd_seq coretemp snd_timer snd_seq_device uvcvideo b43 psmouse videodev mac80211 lp v4l1_compat v4l2_compat_ioctl32 btusb snd bluetooth cfg80211 serio_raw parport led_class soundcore snd_page_alloc fbcon tileblit font bitblit softcursor vga16fb vgastate i915 drm_kms_helper r8169 drm ahci mii ssb i2c_algo_bit intel_agp video output
Oct  4 21:30:03 zogma kernel: [ 2668.887995] Pid: 1260, comm: irq/17-b43 Not tainted 2.6.32-25-generic #44-Ubuntu HP Mini 210-1000
Oct  4 21:30:03 zogma kernel: [ 2668.888005] RIP: 0010:[<ffffffffa0249ddf>]  [<ffffffffa0249ddf>] b43_dma_handle_txstatus+0x14f/0x210 [b43]
Oct  4 21:30:03 zogma kernel: [ 2668.888042] RSP: 0018:ffff8800783d1d40  EFLAGS: 00010286
Oct  4 21:30:03 zogma kernel: [ 2668.888050] RAX: b9297c50e59aafb2 RBX: ffff88006b103900 RCX: ffff8800690fb4d8
Oct  4 21:30:03 zogma kernel: [ 2668.888058] RDX: ffff8800783d1d58 RSI: 0000000000000389 RDI: ffff88006b103900
Oct  4 21:30:03 zogma kernel: [ 2668.888066] RBP: ffff8800783d1d90 R08: 0000000000000000 R09: 0000000000000001
Oct  4 21:30:03 zogma kernel: [ 2668.888074] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000389
Oct  4 21:30:03 zogma kernel: [ 2668.888082] R13: ffff880037215000 R14: ffffffffa02518c0 R15: ffff8800783d1d58
Oct  4 21:30:03 zogma kernel: [ 2668.888093] FS:  0000000000000000(0000) GS:ffff880001c00000(0000) knlGS:0000000000000000
Oct  4 21:30:03 zogma kernel: [ 2668.888102] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
Oct  4 21:30:03 zogma kernel: [ 2668.888110] CR2: 00000000028e9558 CR3: 000000006b1db000 CR4: 00000000000006f0
Oct  4 21:30:03 zogma kernel: [ 2668.888118] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Oct  4 21:30:03 zogma kernel: [ 2668.888126] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Oct  4 21:30:03 zogma kernel: [ 2668.888136] Process irq/17-b43 (pid: 1260, threadinfo ffff8800783d0000, task ffff88006b23c4d0)
Oct  4 21:30:03 zogma kernel: [ 2668.888143] Stack:
Oct  4 21:30:03 zogma kernel: [ 2668.888148]  ffff880001c15bc0 ffff8800783d1df0 ffff8800783d1d90 ffff8800690fb4d8
Oct  4 21:30:03 zogma kernel: [ 2668.888162] <0> 0000000000000000 ffff880037215000 0000000000000000 ffff8800783d1df0
Oct  4 21:30:03 zogma kernel: [ 2668.888176] <0> ffff88006b103ee8 ffff88007aaff664 ffff8800783d1db0 ffffffffa0244d80
Oct  4 21:30:03 zogma kernel: [ 2668.888193] Call Trace:
Oct  4 21:30:03 zogma kernel: [ 2668.888221]  [<ffffffffa0244d80>] b43_handle_txstatus+0x50/0x90 [b43]
Oct  4 21:30:03 zogma kernel: [ 2668.888244]  [<ffffffffa0234c44>] b43_do_interrupt_thread+0x244/0x3c0 [b43]
Oct  4 21:30:03 zogma kernel: [ 2668.888268]  [<ffffffffa0234de6>] b43_interrupt_thread_handler+0x26/0x40 [b43]
Oct  4 21:30:03 zogma kernel: [ 2668.888284]  [<ffffffff810c5c64>] irq_thread+0x154/0x260
Oct  4 21:30:03 zogma kernel: [ 2668.888296]  [<ffffffff810c5b10>] ? irq_thread+0x0/0x260
Oct  4 21:30:03 zogma kernel: [ 2668.888309]  [<ffffffff81084206>] kthread+0x96/0xa0
Oct  4 21:30:03 zogma kernel: [ 2668.888322]  [<ffffffff810131ea>] child_rip+0xa/0x20
Oct  4 21:30:03 zogma kernel: [ 2668.888335]  [<ffffffff81084170>] ? kthread+0x0/0xa0
Oct  4 21:30:03 zogma kernel: [ 2668.888346]  [<ffffffff810131e0>] ? child_rip+0x0/0x20
Oct  4 21:30:03 zogma kernel: [ 2668.888352] Code: 44 24 01 83 ea 01 41 39 d4 41 bc 00 00 00 00 44 0f 45 e0 4c 89 fa 44 89 e6 48 89 df 41 ff 16 48 8b 4d c8 48 8b 01 48 85 c0 74 59 <8b> 50 68 48 8b 43 50 48 8b 71 08 48 8b 38 4c 8b 47 10 41 8b 40 
Oct  4 21:30:03 zogma kernel: [ 2668.888471] RIP  [<ffffffffa0249ddf>] b43_dma_handle_txstatus+0x14f/0x210 [b43]
Oct  4 21:30:03 zogma kernel: [ 2668.888498]  RSP <ffff8800783d1d40>
Oct  4 21:30:03 zogma kernel: [ 2668.888507] ---[ end trace 4464d2dec9d1f7e6 ]---
Oct  4 21:30:03 zogma kernel: [ 2668.888517] exiting task "irq/17-b43" (1260) is an active IRQ thread (irq 17)

This occurs fairly reliably when my backups run (imposing high network
and filesystem load) while I'm using the system. If I leave it largely
idle and start backups then it stays up, however.

The host is an HP Mini 210-1011ea. CPU is an Atom N450.

The b43 device is:

02:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01)
	Subsystem: Hewlett-Packard Company Device 365e
	Flags: bus master, fast devsel, latency 0, IRQ 17
	Memory at 96000000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: b43-pci-bridge
	Kernel modules: ssb

richard at zogma:~$ lsb_release -rd
Description:	Ubuntu 10.04.1 LTS
Release:	10.04

Kernel package version is 2.6.32-25.44. It's the amd64 version.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

-- 
gpf in b43_dma_handle_txstatus
https://bugs.launchpad.net/bugs/654838
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