On Thu, Dec 25, 2003 at 06:48:05PM +0200, Eli Billauer wrote: > Muli Ben-Yehuda wrote: > > >Usually, you'll see a processes in an uninterruptible sleep > >represented as 'D' in ps. Since you say they are 'R', please do > >magic-sysrq-t to see where in the kernel they are. > > > For those of you who have no idea what Muli is talking about (you're in > good company), have a look at /usr/src/linux/Documentation/sysrq.txt . > Short explanation: You press some magic button combination, and info > goes out the console and log file. You press the wrong combination, your > system reboots uncleanly right away.
You make that sound like it's a bad thing :-) > As for what Muli asked about (I think): You think rightly. > Dec 25 18:32:47 localhost kernel: artsd R current 4452 > 11005 1 11015 (NOTLB) > Dec 25 18:32:47 localhost kernel: Call Trace: [<c0109ea8>] > [<d0ee7f7f>] [<d0eea0d1>] [<c0135d2d>] [<c0142f62>] > Dec 25 18:32:47 localhost kernel: [<c0134cdd>] [<c0134d33>] [<c0108923>] > > What does it tell us, doc? Not much. It's a backtrace, but it needs to be resolved. Please use either 'addr2line' or 'ksymoops' to translate the address (c0109ea8) to a function in the kernel. You'll need the vmlinux for your kernel to do that. > And now let's look at /proc/11005/status. As can be seen below in > "SigPnd", signal number 9 is pending (as are 14 and 15 from my previous > attempts). Signal 9 pending??? See my explnation in the previous email. artsd is doing something in the kernel and not handling signals. In kernel space, signals don't get "magically handled" - they are handled in specific points in time, either explicitly (if (sigpending()) return;) or implicily (entry and exit from system calls, IIRC). > Comments, anyone? Looks like a kernel buglet. 2.4.21 being fairly old, you might want to try a more recent kernel. If you want to debug it further, addr2line as mentioned above. Cheers, Muli -- Muli Ben-Yehuda http://www.mulix.org | http://mulix.livejournal.com/ "the nucleus of linux oscillates my world" - [EMAIL PROTECTED]
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