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Well-Known PRs as determined by the bugbusting team

Date generated: Tue Feb 9 07:25:01 2010 GMT

This is a list of PRs that the bugbusting team has determined are commonly reported problems. By grouping them together by symptom, we hope to attract more attention to them. It is generated from this file once per day.

This list is similar to the recommended list, which contains PRs that have a patch and are ready to go.

You may see also the Commonly Reported Issues list on the wiki; however, note that it has not been kept up-to-date for a while.

Send comments to linimon@FreeBSD.org.

Note: closed PRs will be automagically filtered out.

Ejecting mounted device causes panic
Mounting something twice hangs system
Mounting write-protected media panics system
sysinstall will not unmount CDs
UDF filesystems unmountable
Unexpected panic on device insert
Unexpected panic on device insert and removal (even if not mounted)

Ejecting mounted device causes panic

This is the most notorious problem. In general it affects users of USB devices the most often, but can also affect CD and floppy users. The 'received wisdom' is that the VM system will need some re-architecting to fully cope with this problem.

SSubmittedTrackerResp.Description
o2004/10/30usb/73307usb[panic] Kernel panics on USB disconnect
o2005/10/23kern/87859fs[smbfs] System reboot while umount smbfs.
o2006/03/19kern/94669pjd[vfs] [patch] Panic from Failed Removable Media Mount
o2006/05/02kern/96644[panic] umount(8) crash after mount/umount disturbance: fatal trap 12
f2006/10/11usb/104292gavin[usb67] [umass] [hang] system lockup on forced umount of usb-storage device
o2006/11/10usb/105361usb[usb67] [panic] Kernel panic during unmounting mass storage (Creative mp3 player)
o2007/02/09kern/108968[panic] Double mount then umount and ls resuits in panic.
o2007/02/21kern/109377daichi[unionfs] unionfs crashes if underlying file system forcibly unmounted
f2007/05/13usb/112631gavin[usb67] [panic] Problem with SONY DSC-S80 camera on umount
o2007/08/08usb/115298usb[ulpt] [panic] Turning off USB printer panics kernel
o2008/02/18usb/120786usb[usb] [panic] Kernel panic when forced umount of a dettached USB Harddisk
11 problems total.

Mounting something twice hangs system

SSubmittedTrackerResp.Description
a2004/12/07kern/74809[modules] [panic] smbfs panic if multiply mounted
o2005/11/21kern/89396[reboot] remounting cdrom causes reboot
p2006/12/08kern/106496kris[softupdates] Can't remount filesystem as read only after delete - Failed to flush worklist
o2006/12/28kern/107285[panic] freeze and reboot by mounting CDROM volume twice
4 problems total.

Mounting write-protected media panics system

SSubmittedTrackerResp.Description
o2004/12/06usb/74771usb[umass] [hang] mounting write-protected umass device as read/write hangs device
o2006/03/22kern/94838scsiKernel panic while mounting SD card with lock switch on
2 problems total.

sysinstall will not unmount CDs

SSubmittedTrackerResp.Description
o2008/04/07bin/122522kensmithsysinstall(8) doesn't unmount CD for multi-CD package installs
1 problem total.

UDF filesystems unmountable

SSubmittedTrackerResp.Description
o2008/02/23kern/120989scottl[udf] [patch] UDF (with DVD RAM) isn't mountable/readable
1 problem total.

Unexpected panic on device insert

SSubmittedTrackerResp.Description
f2006/08/10usb/101752gavin[usb67] [umass] [panic] 6.1-RELEASE kernel panic on Casio camera device insertion
o2006/11/10usb/105361usb[usb67] [panic] Kernel panic during unmounting mass storage (Creative mp3 player)
o2007/07/05usb/114310usb[libusb] [patch] [panic] USB hub attachment panics kernel during libusb device scan
o2007/10/18usb/117313usb[umass] [panic] panic on usb camera insertion
o2007/11/10usb/117955usb[umass] [panic] inserting minolta dimage a2 crashes OS
o2008/05/14usb/123690usb[usb] [panic] Panic on USB device insertion when usb loaded as a module
o2008/08/14usb/126519usb[usb] [panic] panic when plugging in an iphone
o2008/12/08usb/129500usb[umass] [panic] FreeBSD Crashes when connecting SanDisk Sensa e280
o2008/12/19usb/129766usb[usb] plugging in usb modem HUAWEI E226 panics system
9 problems total.

Unexpected panic on device insert and removal (even if not mounted)

SSubmittedTrackerResp.Description
o2005/02/06usb/77184usb[umass] [panic] kernel panic on USB device disconnect, even if not detected
o2005/03/27usb/79269usb[ohci] USB ohci da0 plug/unplug causes crashes and lockups.
s2005/06/23usb/82569usb[umass] [panic] USB mass storage plug/unplug causes system panic
o2005/07/16usb/83563usb[umass] [panic] Page Fault while detaching Mpman Usb device
s2005/07/30usb/84336usb[usb] [reboot] instant system reboot when unmounting a powered off/unplugged+replugged USB device
o2006/01/22usb/92171usb[panic] panic unplugging Vodafone Mobile Connect (UMTS) 3G/GPRS Datacard
o2006/03/24usb/94897usb[panic] Kernel Panic when cleanly unmounting USB disk
o2007/11/17usb/118098usb[umass] 6th gen iPod causes problems when disconnecting, even after umount
o2008/02/29usb/121232usb[usb] [panic] USB CardBus card removal causes reboot sometimes
o2008/03/16usb/121755usb[ohci] [patch] Fix panic after ohci/uhub cardbus device eject
o2008/06/25usb/124980usb[panic] kernel panic on detaching unmounted umass device
o2008/06/26kern/124996[patch] "filesystem goof: vop_panic[vop_revoke]" panic on removal of USB serial adapter
o2008/07/09usb/125450usb[panic] Removing USB flash card while being accessed causes kernel panic, even without device mounted
f2008/07/26kern/125985[umass] [panic] no da-device, panic upon unplugging
14 problems total.