Bug 86217 - Alt-Sysrq handling is inconsistent
Alt-Sysrq handling is inconsistent
Product: Red Hat Enterprise Linux 2.1
Classification: Red Hat
Component: kernel (Show other bugs)
ia64 Linux
medium Severity medium
: ---
: ---
Assigned To: Larry Woodman
Brian Brock
Depends On:
  Show dependency treegraph
Reported: 2003-03-17 09:06 EST by Dave Anderson
Modified: 2007-11-30 17:06 EST (History)
3 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2005-04-04 13:17:49 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

  None (edit)
Description Dave Anderson 2003-03-17 09:06:27 EST
From Bugzilla Helper:
User-Agent: Mozilla/4.78 [en] (X11; U; Linux 2.4.9-e.3enterprise i686)

Description of problem:
Alt-Sysrq handling on ia64 in general is spotty at best.
Typically upon entering Alt-Sysrq with a supported key,
it displays only the help message, as if an incorrect key
were pressed; then it stays in that mode with any subsequent
key entry, repeating the help message.  Eventually it may/will
"get out" of the loop and perform the request.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Enter Alt-Sysrq-T (or any other supported key)

Actual Results:  The help string is displayed and then repeatedly displays
with subsequent keystrokes:

Sysrq: HELP : loglevl0-8 reBoot tErm kIll saK showMem Off showPc unRaw Sync
showTasks Unmount

Expected Results:  The correct "Sysrq : xxxx" string for the key entered should
be displayed and the command initiated.

Additional info:
Comment 1 Bill Nottingham 2003-03-24 12:12:27 EST
Out of curiousity - usb keyboard?
Comment 2 Dave Anderson 2003-03-24 12:50:21 EST
yes, usb...
Comment 3 Bill Nottingham 2003-03-24 12:58:32 EST
Does a USB keyboard on x86 show the same problem for you? I've seen something
similar with a USB keyboard on x86 and sysrq, so I wonder if it's a USB issue
and not an ia64 issue.
Comment 4 Dave Anderson 2003-03-24 13:25:51 EST
Good question -- we just tried it on one x86 box here, and it worked OK.

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