On Sun, 4 Mar 2007 10:07:31 +0100 Mariusz Kozlowski <[EMAIL PROTECTED]> wrote:
> I'm experiencing weird system hangs with recent -mm. After a few hours > of uptime for no > obvious reason system hangs and is (almost) unusable until reset. > > a few facts: > > - this happens on random basis without anything obvious that could trigger it > - if some music is played and system hangs the music starts looping in thight > loop causing weird > sound effects > - sometimes I'm able to switch from X to console, it takes a few seconds to > switch though > - system is eating 100% CPU what is shown by my laptop fans > - when I switch to console I can issue SysRq commands but they do not work > i.e.: > SysRq + P shows only the first line: "SysRq: Show Regs" > - in console in which I can log into the system I'm unable to type > - in console where syslog is logging *.* I'm able to type > - if the wifi card was plugged into the system before the hang happend the > networking seems to work ok > - when I reattach my pcmcia wifi card it doesn't get detected (nothing > happens) > - when I try to login to my laptop from remote machine the line "login:" and > that's it, nothing > more happens > - system logs show nothing interesting as even if there is some usable debug > info I'm unable to > SysRq + S and read it after reboot > > With 2.6.20-mm1 it happened as well. I get the feeling that 2.6.20-rc2-mm1 > needs a bit more uptime > to hit this bug. Thanks. Are you sure that the kermel hasn't already oopsed when this happens? (netconsole will help). The sysrq-P failure is a shame. Does sysrq-P work as expected _before_ the system has failed? It sounds to me like a simple log-level thing. Did you try typing alt-sysrq-7 first? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
