Posted by: Anonymous
[ip: 24.17.13.44]
on October 11, 2008 01:57 AM
FreeBSD's USB Insertion/Removal Panic: A Little History
Several people seem to believe that this problem is a) minor, b) fixed, or
c) somehow misrepresented by the article's author. So, here are a few items
from the history of FreeBSD's surprisingly persistent collection of USB
device insertion/removal panic reports.
With a server OS in a controlled environment, most USB devices and their
problems can be simply ignored. A desktop OS is a different ballgame, as the
freezeups start to loom larger for desktop users of many and varied random
USB devices.
This doesn't include any closed PRs. Of the 37 reports, 32 are classed as
open with no checking yet performed (o), 0 as analyzed (a), 0 as more
feedback needed (f), 2 as patched but with issues still open (p), and 2 as
suspended for lack of information or resources (s).
1. ("serious problem") [usb] [panic]
o 2008/08/14 usb/126519 usb
panic when plugging in an iphone
2. ("non-critical problem")
o 2008/07/11 usb/125510 usb
repeated plug and unplug of USB mass storage devices leads to stall, panics
3. ("serious problem") [panic]
o 2008/07/09 usb/125450 usb
Removing USB flash card while being accessed causes kernel panic, even without device mounted
4. ("serious problem") [panic]
o 2008/06/25 usb/124980 usb
kernel panic on detaching unmounted umass device
5. ("serious problem") [panic]
o 2008/06/18 usb/124708 usb
Kernel panic on USB KVM reattach
6. ("serious problem")
o 2008/05/15 usb/123714 usb
Panic when hald-storage-probe runs with umass device inserted
7. ("serious problem")
o 2008/05/14 usb/123690 usb
Panic on USB device insertion when usb loaded as a module
8. ("serious problem")
o 2008/02/18 usb/120786 usb
Kernel panic when forced umount of a dettached USB Harddisk
9. ("non-critical problem") [umass]
o 2007/11/17 usb/118098 usb
6th gen iPod causes problems when disconnecting, even after umount
10. ("serious problem") [umass] [panic]
o 2007/11/10 usb/117955 usb
inserting minolta dimage a2 crashes OS
11. ("serious problem") [reboot]
o 2007/10/31 usb/117712 usb
unexpected reboot after mount USB flash drive
12. ("serious problem") [umass] [panic]
o 2007/10/18 usb/117313 usb
panic on usb camera insertion
13. ("serious problem") [libusb] [patch] [panic]
o 2007/07/05 usb/114310 usb
USB hub attachment panics kernel during libusb device scan
14. ("serious problem") [panic]
o 2007/05/13 usb/112631 usb
Problem with SONY DSC-S80 camera on umount
15. ("serious problem") [uhid] [panic]
o 2007/04/17 usb/111753 usb
Replicable system panic involving UHID driver
"This has been around for most (all?) of 6.X but I've only just managed
to isolate the cause somewhat." ... "the simple fact I (as a non-root user)
am able to panic the machine is obviously not correct."
16. ("non-critical problem") [panic]
s 2007/01/25 usb/108344 usb
kernel with atausb panics when unplugging USB Flash
17. ("non-critical problem") [panic]
o 2006/11/10 usb/105361 usb
Kernel panic during unmounting mass storage (Creative mp3 player)
18. ("serious problem") [umass] [hang]
o 2006/10/11 usb/104292 usb
system lockup on forced umount of usb-storage device
19. ("serious problem") [uhub] [panic]
o 2006/09/08 usb/103025 usb
wrong detection of USB device for FreeBSD 6.1 and AMD LX-800 and CS-5536 chipset, followed by panic
20. ("non-critical problem") [panic]
o 2006/09/07 usb/102976 usb
Casio Exilim Digital Camera causes panic on insertion
21. ("serious problem") [umass] [panic]
o 2006/08/10 usb/101752 usb
6.1-RELEASE kernel panic on usb device insertion
22. ("non-critical problem") [umass] [hang]
o 2006/05/12 usb/97175 usb
USB cardreader hangs system
23. ("serious problem") [panic]
o 2006/03/24 usb/94897 usb
Kernel Panic when cleanly unmounting USB disk
24. ("serious problem") [panic]
o 2006/01/22 usb/92171 usb
panic unplugging Vodafone Mobile Connect (UMTS) 3G/GPRS Datacard
25. ("serious problem") [umass] [panic]
o 2005/12/20 usb/90700 usb
Kernel panic on connect/mount/use umass device
26. ("serious problem") [umass] [panic]
o 2005/12/05 usb/89954 usb
USB Disk driver race condition?
"ocaisionally, plugging in the usb flash
reader (and I think sometimes a usb hard drive, but I hot plug
that so much less that I can't remember) causes a kernel panic"
27. ("serious problem") [usb] [reboot]
s 2005/07/30 usb/84336 usb
instant system reboot when unmounting a powered off/unplugged+replugged USB
device
28. ("serious problem") [umass] [panic]
s 2005/06/23 usb/82569 usb
USB mass storage plug/unplug causes system panic
29. ("serious problem") [modules] [panic]
o 2005/05/09 usb/80829 usb
possible panic when loading USB-modules
30. ("serious problem") [ohci]
o 2005/03/27 usb/79269 usb
USB ohci da0 plug/unplug causes crashes and lockups.
31. ("serious problem") [udbp] [reboot]
o 2005/06/22 usb/82520 usb
Reboot when USL101 connected
32. ("serious problem") [quirk] [patch]
p 2005/02/23 usb/77940 imp
insertion of usb keyboard panics system
33. ("serious problem") [ucom] [panic]
o 2005/02/09 usb/77294 usb
ucom + ulpcom panic
34. ("serious problem") [umass] [panic]
o 2005/02/06 usb/77184 usb
kernel panic on USB device disconnect, even if not detected
35. ("serious problem") [panic]
o 2004/10/30 usb/73307 usb
Kernel panics on USB disconnect
36. ("serious problem") [umass] [panic] USB
o 2004/03/01 usb/63621 usb
MemoryStick Reader stalls/crashes system
37. ("serious problem") [umass] [panic]
p 2002/12/10 usb/46176 imp
umass causes kernel panic if device removed before umount
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Re(1): PC-BSD 7 is a mixed bag
Posted by: Anonymous [ip: 24.17.13.44] on October 11, 2008 01:57 AMSeveral people seem to believe that this problem is a) minor, b) fixed, or
c) somehow misrepresented by the article's author. So, here are a few items
from the history of FreeBSD's surprisingly persistent collection of USB
device insertion/removal panic reports.
With a server OS in a controlled environment, most USB devices and their
problems can be simply ignored. A desktop OS is a different ballgame, as the
freezeups start to loom larger for desktop users of many and varied random
USB devices.
This list is from the Current FreeBSD Problem Reports, shown here in reverse
chronological order. For more detail, see
http://www.freebsd.org/cgi/query-pr-summary.cgi?&category=usb&sort=none
This doesn't include any closed PRs. Of the 37 reports, 32 are classed as
open with no checking yet performed (o), 0 as analyzed (a), 0 as more
feedback needed (f), 2 as patched but with issues still open (p), and 2 as
suspended for lack of information or resources (s).
1. ("serious problem") [usb] [panic]
o 2008/08/14 usb/126519 usb
panic when plugging in an iphone
2. ("non-critical problem")
o 2008/07/11 usb/125510 usb
repeated plug and unplug of USB mass storage devices leads to stall, panics
3. ("serious problem") [panic]
o 2008/07/09 usb/125450 usb
Removing USB flash card while being accessed causes kernel panic, even without device mounted
4. ("serious problem") [panic]
o 2008/06/25 usb/124980 usb
kernel panic on detaching unmounted umass device
5. ("serious problem") [panic]
o 2008/06/18 usb/124708 usb
Kernel panic on USB KVM reattach
6. ("serious problem")
o 2008/05/15 usb/123714 usb
Panic when hald-storage-probe runs with umass device inserted
7. ("serious problem")
o 2008/05/14 usb/123690 usb
Panic on USB device insertion when usb loaded as a module
8. ("serious problem")
o 2008/02/18 usb/120786 usb
Kernel panic when forced umount of a dettached USB Harddisk
9. ("non-critical problem") [umass]
o 2007/11/17 usb/118098 usb
6th gen iPod causes problems when disconnecting, even after umount
10. ("serious problem") [umass] [panic]
o 2007/11/10 usb/117955 usb
inserting minolta dimage a2 crashes OS
11. ("serious problem") [reboot]
o 2007/10/31 usb/117712 usb
unexpected reboot after mount USB flash drive
12. ("serious problem") [umass] [panic]
o 2007/10/18 usb/117313 usb
panic on usb camera insertion
13. ("serious problem") [libusb] [patch] [panic]
o 2007/07/05 usb/114310 usb
USB hub attachment panics kernel during libusb device scan
14. ("serious problem") [panic]
o 2007/05/13 usb/112631 usb
Problem with SONY DSC-S80 camera on umount
15. ("serious problem") [uhid] [panic]
o 2007/04/17 usb/111753 usb
Replicable system panic involving UHID driver
"This has been around for most (all?) of 6.X but I've only just managed
to isolate the cause somewhat." ... "the simple fact I (as a non-root user)
am able to panic the machine is obviously not correct."
16. ("non-critical problem") [panic]
s 2007/01/25 usb/108344 usb
kernel with atausb panics when unplugging USB Flash
17. ("non-critical problem") [panic]
o 2006/11/10 usb/105361 usb
Kernel panic during unmounting mass storage (Creative mp3 player)
18. ("serious problem") [umass] [hang]
o 2006/10/11 usb/104292 usb
system lockup on forced umount of usb-storage device
19. ("serious problem") [uhub] [panic]
o 2006/09/08 usb/103025 usb
wrong detection of USB device for FreeBSD 6.1 and AMD LX-800 and CS-5536 chipset, followed by panic
20. ("non-critical problem") [panic]
o 2006/09/07 usb/102976 usb
Casio Exilim Digital Camera causes panic on insertion
21. ("serious problem") [umass] [panic]
o 2006/08/10 usb/101752 usb
6.1-RELEASE kernel panic on usb device insertion
22. ("non-critical problem") [umass] [hang]
o 2006/05/12 usb/97175 usb
USB cardreader hangs system
23. ("serious problem") [panic]
o 2006/03/24 usb/94897 usb
Kernel Panic when cleanly unmounting USB disk
24. ("serious problem") [panic]
o 2006/01/22 usb/92171 usb
panic unplugging Vodafone Mobile Connect (UMTS) 3G/GPRS Datacard
25. ("serious problem") [umass] [panic]
o 2005/12/20 usb/90700 usb
Kernel panic on connect/mount/use umass device
26. ("serious problem") [umass] [panic]
o 2005/12/05 usb/89954 usb
USB Disk driver race condition?
"ocaisionally, plugging in the usb flash
reader (and I think sometimes a usb hard drive, but I hot plug
that so much less that I can't remember) causes a kernel panic"
27. ("serious problem") [usb] [reboot]
s 2005/07/30 usb/84336 usb
instant system reboot when unmounting a powered off/unplugged+replugged USB
device
28. ("serious problem") [umass] [panic]
s 2005/06/23 usb/82569 usb
USB mass storage plug/unplug causes system panic
29. ("serious problem") [modules] [panic]
o 2005/05/09 usb/80829 usb
possible panic when loading USB-modules
30. ("serious problem") [ohci]
o 2005/03/27 usb/79269 usb
USB ohci da0 plug/unplug causes crashes and lockups.
31. ("serious problem") [udbp] [reboot]
o 2005/06/22 usb/82520 usb
Reboot when USL101 connected
32. ("serious problem") [quirk] [patch]
p 2005/02/23 usb/77940 imp
insertion of usb keyboard panics system
33. ("serious problem") [ucom] [panic]
o 2005/02/09 usb/77294 usb
ucom + ulpcom panic
34. ("serious problem") [umass] [panic]
o 2005/02/06 usb/77184 usb
kernel panic on USB device disconnect, even if not detected
35. ("serious problem") [panic]
o 2004/10/30 usb/73307 usb
Kernel panics on USB disconnect
36. ("serious problem") [umass] [panic] USB
o 2004/03/01 usb/63621 usb
MemoryStick Reader stalls/crashes system
37. ("serious problem") [umass] [panic]
p 2002/12/10 usb/46176 imp
umass causes kernel panic if device removed before umount
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