Bug 708756 - alt-sysrq B for reboot is ignored
Summary: alt-sysrq B for reboot is ignored
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 15
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-05-29 10:48 UTC by Peter Bieringer
Modified: 2012-05-24 16:57 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-05-24 16:57:57 UTC
Type: ---


Attachments (Terms of Use)

Description Peter Bieringer 2011-05-29 10:48:57 UTC
Description of problem:
While try to workaround a system hold state during reboot ("Unmounting filesystems") I found that Alt-Sysrq B for reboot is ignored, while S for sync and U for umount is still working well

Version-Release number of selected component (if applicable):
2.6.38.6-27.fc15.i686.PAE

How reproducible:
always

Expected results:
proper working

Additional info:
P for poweroff is working

Comment 1 Chuck Ebbert 2011-06-22 11:03:11 UTC
Does reboot work otherwise, in normal use with the 'reboot' command or requesting reboot in graphical mode?

Comment 2 Peter Bieringer 2011-06-26 08:57:44 UTC
Normal reboot did not proper work in some situations, because F15 has troubles unmounting all NFS drives (which it shouldn't, but I still investigate this). Therefore I tried Alt-Sysrq

Alt-Sysrq-S for FS sync works
Alt-Sysrq-U for FS in R/O mode works, too
Alt-Sysrq-H for help works also
Alt-Sysrq-B: no action, have to push the reset button :-(

Comment 3 Peter Bieringer 2011-07-03 18:14:40 UTC
This must be a scan code issue, I found that

while

Alt Gr (right side from "SPACE") + B is not working (but others like S, U, H)

the following 

Alt (left side from "SPACE") + B works


Note You need to log in before you can comment on or make changes to this bug.