lkml.org 
[lkml]   [2009]   [Jul]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.6.29.5: Oops when unplugging Moschip 7840/7820 USB serial device
On Thu, Jul 09, 2009 at 05:36:30PM -0400, Alan Stern wrote:
> On Thu, 9 Jul 2009, Jeremy Fitzhardinge wrote:
>
> > I unplugged a Moschip 7840/7820 USB serial adapter, and it oopsed. I had been using it
> > with picoterm, but it was not open at the time I unplugged it.
> >
> > Thanks,
> > J
> >
> > BUG: unable to handle kernel NULL pointer dereference at 00000000000000b4
> > IP: [<ffffffff81029eb5>] __ticket_spin_lock+0x9/0x1a
> > PGD 12e19c067 PUD 12e19d067 PMD 0
> > Oops: 0002 [#1] SMP
> > last sysfs file: /sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq
> > CPU 0
> > Modules linked in: mos7840 usbserial joydev aes_x86_64 aes_generic hidp fuse ipt_MASQUERADE iptable_nat nf_nat rfcomm bridge stp llc bnep sco l2cap coretemp sunrpc ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 cpufreq_ondemand acpi_cpufreq freq_table dm_multipath kvm_intel kvm uinput snd_hda_codec_conexant snd_hda_intel snd_hda_codec arc4 ecb snd_hwdep thinkpad_acpi iwlagn usb_storage snd_pcm hwmon btusb e1000e pcspkr iwlcore snd_timer iTCO_wdt lib80211 iTCO_vendor_support mac80211 i2c_i801 wmi snd bluetooth cfg80211 soundcore snd_page_alloc i915 drm i2c_algo_bit i2c_core video output [last unloaded: microcode]
> > Pid: 27, comm: khubd Not tainted 2.6.29.5-191.fc11.x86_64 #1 74542GU
> > RIP: 0010:[<ffffffff81029eb5>] [<ffffffff81029eb5>] __ticket_spin_lock+0x9/0x1a
>
> > Call Trace:
> > [<ffffffff81029f7f>] default_spin_lock_flags+0x9/0xe
> > [<ffffffff813abf94>] _spin_lock_irqsave+0x32/0x3b
> > [<ffffffffa0399afa>] mos7840_shutdown+0x93/0x120 [mos7840]
>
> The fix for this bug is in 2.6.30.1, but it hasn't been added to the
> 2.6.29.stable tree (or 2.6.27.stable).

.29 is no longer being maintained.

I didn't think the change was needed for .27, is it?

thanks,

greg k-h


\
 
 \ /
  Last update: 2009-07-09 23:45    [from the cache]
©2003-2011 Jasper Spaans