* Wed, 19 Sep 2007 04:45:17 -0400 > > [1.] Summary > System Freeze on Particular workload with kernel 2.6.22.6 > > [2.] Description > System freezes on repeated application of the following command > for f in *png ; do convert -quality 100 $f `basename $f png`jpg; done > > Problem is consistent and repeatable. > Problem persists when running on a different drive, and also in pure console > (no X). > > One time, the following error logged in syslog: > Sep 19 04:22:11 mossnew kernel: [ 301.883919] VM: killing process convert > Sep 19 04:22:11 mossnew kernel: [ 301.884382] swap_free: Unused swap offset > entry 0000ff00 > Sep 19 04:22:11 mossnew kernel: [ 301.884421] swap_free: Unused swap offset > entry 00000300 > Sep 19 04:22:11 mossnew kernel: [ 301.884456] swap_free: Unused swap offset > entry 00000200 > Sep 19 04:22:11 mossnew kernel: [ 301.884491] swap_free: Unused swap offset > entry 0000ff00 > Sep 19 04:22:11 mossnew kernel: [ 301.884527] swap_free: Unused swap offset > entry 0000ff00 > Sep 19 04:22:11 mossnew kernel: [ 301.884562] swap_free: Unused swap offset > entry 00000100 > > Should not be a RAM problem. RAM has survived 12 hrs of Memtest with no > errors. > Should not be a CPU problem either. I have been running CPU intensive tasks > for days. > > [3.] Keywords > freeze, swap_free,VM
Nice bug report, seems like from linux-source/REPORTING-BUGS. But still: * no relevant Cc (memory management added) + no output of `mount` (because if swap is on some file system, that *can* be another problem) + no information about amount of memory and its BIOS configuration FYI, latter two (and much more) is one `dmesg` output. This output, together with any other kernel information can be gathered by serial or net consoles: linux-source/Documentation/serial-console.txt linux-source/Documentation/networking/netconsole.txt If console messages after freeze can be seen in text mode VGA/CRT also, photos of it somewhere on ftp will be OK. > [4.] /proc/version > Linux version 2.6.22.6intelcore2 ([EMAIL PROTECTED]) (gcc version 4.1.2 > (Ubuntu 4.1.2-0ubuntu4)) #1 SMP Sat Sep 15 00:29:00 EDT 2007 > > [5.] No Oops > > [6.] Trigger > - Create a large number of png images. (a few hundred) > > - repeatedly run > for f in *png ; do convert -quality 100 $f `basename $f png`jpg; done > > - This might be subjective, but the freeze seems to show up sooner if there > is a CPU heavy > process running in the background. > > [7] Environment > [7.1] Software /script/ver_linux > > Linux mossnew 2.6.22.6intelcore2 #1 SMP Sat Sep 15 00:29:00 EDT 2007 x86_64 > GNU/Linux > [] ____ - 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/
