在 2011年12月15日 上午1:59，Axel Theilmann <theilmann@xxxxxxxxxxxx> ： > > > hi, > > two weeks ago Huajun Li posted a patch for a kernel oops, subject [PATCH] > SCSI/sd: Fix NULL dereference in sd_revalidate_disk". > > The patch was discussed but considered "clearly wrong". The bug shows up for > us in kernel 3.1.4 quite often when unplugging usb sticks and it seems a few > other people have the same problem: > > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/859199 > https://bugzilla.redhat.com/show_bug.cgi?id=754518 > https://bugzilla.novell.com/show_bug.cgi?id=722350 > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649735 > > Can anyone of you maybe give me any status update on that bug? It's quiet on this thread. :) As I mentioned at http://marc.info/?l=linux-scsi&m=132266428023443&w=2 , sd_open() may return -ENOMEDIUM, then rescan_partitions() and sd_revalidate_disk() will be triggered in turn, the latter will find sdkp is NULL. The patch can fix the issue _If_ there is no other dependency. Any comments? Thanks, --Huajun -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
