Red Hat Bugzilla – Bug 383401
hp-probe hanging, prevents /usr unmounting on shutdown
Last modified: 2014-09-29 07:35:44 EDT
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Description of problem:
This was also present in FC7 in recent weeks(?). I have /usr on a separate partition and when shutting down I get errors because /usr cannot be unmounted because the device or resource is busy. ps ax includes these 2 lines
2264 ? S 0:00 sh -c LC_ALL=C hp-probe -b usb 2> /dev/null
2284 ? D 0:00 python /usr/bin/hp-probe -b usb
I cannot kill process 2284 and I suppose itis what is keeping /usr busy. I believe I may have a faulty USB card which FC7 reported as such, however this has only recently occurred in FC7 and now in FC8.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. see description
hp-probe should not hang
What does 'dmesg' say when hp-probe is hanging?
As I said I have a faulty USB controller in my system. F7 used to print a couple
of msgs and carry on (TBH I never checked dmesg), However at the end of dmesg I
get this which suggests hp-probe is caught in some other problem.
SELinux: initialized (dev autofs, type autofs), uses genfs_contexts
eth0: no IPv6 routers present
ohci_hcd 0000:00:0f.0: controller won't resume
ohci_hcd 0000:00:0f.0: HC died; cleaning up
BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000
printing eip: c057857f *pde = 27255067 *pte = 00000000
Oops: 0000 [#1] SMP
Modules linked in: autofs4 nf_conntrack_ipv4 ipt_REJECT iptable_filter ip_tables
nf_conntrack_ipv6 xt_state nf_conntrack nfnetlink xt_tcpudp ip6t_ipv6header
ip6t_REJECT ip6table_filter ip6_tables x_tables ipv6 ext3 jbd dm_mirror
dm_multipath dm_mod snd_usb_audio snd_emu10k1_synth snd_emux_synth
snd_seq_virmidi snd_seq_midi_emul snd_emu10k1 snd_ac97_codec ac97_bus
snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss
snd_pcm pcspkr snd_timer via686a hwmon floppy snd_page_alloc snd_usb_lib
snd_rawmidi snd_util_mem snd_seq_device button 8139cp usblp i2c_viapro
emu10k1_gp gameport snd_hwdep snd 8139too mii i2c_core soundcore parport_pc
parport sg sr_mod cdrom ata_generic pata_via libata sd_mod scsi_mod ext2 mbcache
uhci_hcd ohci_hcd ehci_hcd
EIP: 0060:[<c057857f>] Not tainted VLI
EFLAGS: 00010086 (126.96.36.199-49.fc8 #1)
EIP is at kick_khubd+0x8/0x76
eax: 00000000 ebx: 00000000 ecx: 00000002 edx: 00000000
esi: effacc00 edi: fffffff0 ebp: 00000004 esp: e7227e44
ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068
Process python (pid: 2197, ti=e7227000 task=e8d39230 task.ti=e7227000)
Stack: c0577dc8 00000286 effacc00 fffffff0 c057ab0b c06cffdb f081bab0 efc1e500
effacc00 efd57000 c057af1f efd57000 ffffffff 00000000 efd5732c c057dee4
efd57000 c057e2d6 efd57000 eb4aee40 00000001 c057e1e7 efd57058 c0566446
Code: ff 31 f6 e9 8c fe ff ff be d6 ff ff ff eb bf b8 a4 5b 71 c0 e8 f3 59 0a 00
89 f0 83 c4 4c 5b 5e 5f 5d c3 57 56 53 89 c3 83 ec 04 <8b> 00 8d 73 34 c7 80 4c
01 00 00 01 00 00 00 b8 b4 5b 71 c0 e8
EIP: [<c057857f>] kick_khubd+0x8/0x76 SS:ESP 0068:e7227e44
Okay, kernel oops. Changing component to kernel.
I'm reviewing this bug as part of the kernel bug triage project, an attempt to
isolate current bugs in the Fedora kernel.
I am CC'ing myself to this bug and will try and assist you in resolving it if I can.
There hasn't been much activity on this bug for a while. Could you tell me if
you are still having problems with the latest kernel?
If the problem no longer exists then please close this bug or I'll do so in a
few weeks if there is no additional information lodged.
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