kernel panic when removing a running script directly

[Masami Hiramatsu]

Hi,

Martin Hunt wrote:
> On Thu, 2007-10-25 at 14:50 -0400, Masami Hiramatsu wrote:
>> Hello Martin,
>>
>> I've gotten kernel panic when removing a running script (which is detached
>> from staprun) directly using rmmod command.
>> I hit it on Fedora7(2.6.22.9-91.fc7)@i386 and Fedora8test3(2.6.23.1-30.fc8)@x86-64
>> with latest systemtap on CVS.
>>
>> Here is what I did:
>> $ stap -m iotime examples/iotime.stp
>> ^4 (send SIGQUIT)
>> $ /sbin/rmmod iotime
>>
>> This bug sometimes did not occur, so you might need to repeat it.
>> And I could not reproduce it on RHEL5.
> 
> I wrote a script to repeat the above process hundreds of times per
> second and was able to reproduce on all systems I tried. I have checked
> in a fix.  Please update from CVS and confirm it works for you.

I confirmed the bug was fixed in CVS.

Thank you!

> 
> Thanks for reporting this.
> 
> Martin
> 
> 


-- 
Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America) Inc.
Software Solutions Division

e-mail: mhiramat@redhat.com, masami.hiramatsu.pt@hitachi.com