On Sun, Jun 24, 2012 at 1:48 PM, Mitch Harder <[email protected]> wrote: > On Sun, Jun 24, 2012 at 1:17 PM, Mitch Harder > <[email protected]> wrote: >> I haven't figured out why I'm the only one running into issues, but >> here is some follow-up... >> >> Obviously, there must be some hardware differences between the two >> boxes I can replicate with and everyone else. >> >> But now, I'm also suspicious of a kernel issue. >> >> I de-archived the initramfs for my working Sabayon-Daily-Xfce-20120527 >> and the initramfs for S9-Xfce-final in order to explore for >> differences. >> >> I found the busybox mount command always locks up (in both initramfs >> versions) when I try to mount an extended partition in my custom 3.4.3 >> kernel. >> >> In fact, it locks up so hard I can't kill the mount command even with >> 'kill -s 9 <pid>', and I have to hard reset my computer instead of >> being able to shut down normally. >> >> However, the Sabayon-Daily-Xfce-20120527 has a 3.3 kernel. If I >> manually run the same busybox mount command when booted with the >> Sabayon 3.3 kernel, I successfully got an error returned (which is >> what's expected). >> >> Here are some (boring) details of how I went about my testing. >> >> Step One: Mount the iso image for the working S9-pre-daily and >> S9-final, and copy each sabayon.igz initramfs to a separate working >> directory. >> >> Step Two: Extract the initramfs contents >> zcat sabayon.igz | (while true; do cpio -i -d -H newc >> --no-absolute-filenames || exit; done) >> >> Step Three: >> Attempt to mount /dev/sda4 (the extended partition that is giving >> issues on my sytsem) with the busybox in each version as per the mount >> command in the init scripts. >> >> The init scripts mount with something similar to: >> <initramfs>/bin/mount -r -t udf /dev/sda4 /mnt/temp >> >> Where <initramfs>/bin/mount is actually a link to >> <initramfs>/bin/busybox (busybox knows what command to run based on >> the name of the static link used to start it). >> >> Summary of Results: >> >> If I run the busybox mount command booted with a 3.3 kernel, I get: >> >> # s9pre-xfce/bin/mount -r -t udf /dev/sda4 /mnt/temp/ >> mount: mounting /dev/sda4 on /mnt/sabayon-btrfs-source/ failed: Invalid >> argument >> >> If I run the same busybox mount command from my 3.4.3 kernel, it just >> locks up, and one of my processors spins up to 100% trying to mount. >> The busybox mount command can't be killed at this point. > > Some further minor follow-up. > > If I even use the regular mount command, I get a polite failure on a > 3.3 kernel, but lock up on my 3.4.3 kernel. > > I see a similar report on the SystemRescueCd Forums: > > http://www.sysresccd.org/forums/viewtopic.php?f=13&t=4511
I think I found a thread on it in lkml. http://www.spinics.net/lists/kernel/msg1358512.html
