Bug#741079: linux-image-3.13-1-686-pae: Stack trace when unplugging usb devices
Le Samedi 8 Mars 2014 14:08 CET, Ben Hutchings <ben@decadent.org.uk> a écrit:
> Control: tag -1 moreinfo
>
> On Sat, 2014-03-08 at 10:58 +0100, nb wrote:
> > Package: src:linux
> > Version: 3.13.5-1
> > Severity: normal
> >
> > Dear Maintainer,
> >
> > When unplugging usb devices I have a stack trace. I tried an external usb disk, and a wifi dongle.
> > The message present in both cases is : warn_slowpath_common...
> > Note that I've moved from 3.11 to 3.13. I haven't used 3.12
> [...]
>
> The wifi dongle appears to be handled by the 8821au driver, which is not
> part of this package.
Yes, you're right. I've taken it from https://github.com/abperiasamy/rtl8812AU_8821AU_linux and compiled it myself.
> I would like to see see the *complete* warning message for removal of
> the USB disk ('warn_slowpath_common' is just part of the warning
> mechanism).
Here it is:
[14185.008296] usb 5-3: USB disconnect, device number 9
[14185.048462] ------------[ cut here ]------------
[14185.048476] WARNING: CPU: 0 PID: 8962 at /build/linux-ncyRvS/linux-3.13.5/fs/sysfs/group.c:214 sysfs_remove_group+0xae/0xb0()
[14185.048480] sysfs group c159fb48 not found for kobject 'target2:0:0'
[14185.048482] Modules linked in: usb_storage pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) snd_hrtimer cpufreq_powersave cpufreq_userspace cpufreq_stats cpufreq_conservative rfcomm bnep binfmt_misc vboxdrv(O) synaptics_i2c firewire_sbp2 loop fuse parport_pc ppdev lp parport 8812au(O) gspca_m5602 gspca_main btusb bluetooth videodev media cfg80211 joydev evdev pcspkr psmouse pcmcia serio_raw r852 sm_common yenta_socket nand pcmcia_rsrc nand_ecc pcmcia_core nand_ids r592 mtd memstick snd_hda_codec_realtek lpc_ich mfd_core rng_core ac battery i915 snd_hda_intel snd_hda_codec snd_hwdep asus_laptop snd_pcm acpi_cpufreq snd_page_alloc sparse_keymap rfkill video input_polldev processor button drm_kms_helper drm i2c_algo_bit i2c_core snd_seq snd_seq_device snd_timer snd soundcore hid_generic usbhid hid ext4 crc16 mbcache jbd2 sg sd_mod sr_mod crc_t10dif crct10dif_common cdrom ata_generic firewire_ohci sdhci_pci sdhci ata_piix 8139too 8139cp mii firewire_core crc_itu_t mmc_core libata thermal scsi_mod ehci_pci fan uhci_hcd ehci_hcd thermal_sys usbcore usb_common
[14185.048581] CPU: 0 PID: 8962 Comm: umount Tainted: G O 3.13-1-686-pae #1 Debian 3.13.5-1
[14185.048584] Hardware name: ASUSTeK Computer Inc. W5A /W5A , BIOS 0209 11/17/2005
[14185.048586] 00000009 c140b038 ec4dfeb0 c104d41e c14eb738 ec4dfec8 00002302 c14eb6c8
[14185.048593] 000000d6 c119f52e c119f52e 00000000 c159fb48 f331141c f52b00f8 c104d473
[14185.048599] 00000009 ec4dfeb0 c14eb738 ec4dfec8 c119f52e c14eb6c8 000000d6 c14eb738
[14185.048606] Call Trace:
[14185.048613] [<c140b038>] ? dump_stack+0x3e/0x4e
[14185.048619] [<c104d41e>] ? warn_slowpath_common+0x7e/0xa0
[14185.048623] [<c119f52e>] ? sysfs_remove_group+0xae/0xb0
[14185.048626] [<c119f52e>] ? sysfs_remove_group+0xae/0xb0
[14185.048630] [<c104d473>] ? warn_slowpath_fmt+0x33/0x40
[14185.048633] [<c119f52e>] ? sysfs_remove_group+0xae/0xb0
[14185.048639] [<c12eea3a>] ? device_del+0x2a/0x170
[14185.048655] [<f823be5c>] ? scsi_target_reap_usercontext+0x1c/0x30 [scsi_mod]
[14185.048661] [<c1061e84>] ? execute_in_process_context+0x44/0x50
[14185.048671] [<f823ec5c>] ? scsi_device_dev_release_usercontext+0x11c/0x150 [scsi_mod]
[14185.048675] [<c1061e84>] ? execute_in_process_context+0x44/0x50
[14185.048679] [<c12ee2c3>] ? device_release+0x23/0x80
[14185.048684] [<c10aa59f>] ? module_refcount+0x6f/0x80
[14185.048690] [<c121919a>] ? kobject_cleanup+0x2a/0x70
[14185.048699] [<f84268d0>] ? scsi_disk_put+0x20/0x30 [sd_mod]
[14185.048705] [<c11715d1>] ? __blkdev_put+0x111/0x150
[14185.048711] [<c114389b>] ? deactivate_locked_super+0x1b/0x40
[14185.048716] [<c115b5e2>] ? mntput_no_expire+0xa2/0x120
[14185.048720] [<c115c733>] ? SyS_oldumount+0x73/0xb0
[14185.048726] [<c141628d>] ? sysenter_do_call+0x12/0x28
[14185.048729] ---[ end trace 718a47ebe91fca5c ]---
I can reproduce it at any time.
It's the same with a usb memory key
Regards
nb
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