On Tue, 6 Feb 2024 at 17:58, Jan Kara <jack@xxxxxxx> wrote: > > On Tue 06-02-24 15:53:34, Naresh Kamboju wrote: > > On Tue, 6 Feb 2024 at 15:45, Jan Kara <jack@xxxxxxx> wrote: > > > > > > On Tue 06-02-24 14:41:17, Naresh Kamboju wrote: > > > > All qemu's mount rootfs failed on Linux next-20230206 tag due to the following > > > > kernel crash. > > > > > > > > Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> > > > > > > > > Crash log: > > > > --------- > > > > <3>[ 3.257960] /dev/root: Can't open blockdev > > > > <4>[ 3.258940] VFS: Cannot open root device "/dev/sda" or > > > > unknown-block(8,0): error -16 > > > > > > Uhuh, -16 is EBUSY so it seems Christian's block device opening changes are > > > suspect? Do you have some sample kconfig available somewhere? > > > > All build information is in this url, > > https://storage.tuxsuite.com/public/linaro/lkft/builds/2byqguFVp7MYAEjKo6nJGba2FcP/ > > Thanks! So for record the config has: > > CONFIG_BLK_DEV_WRITE_MOUNTED=y > > So we are not hitting any weird corner case with blocking writes to mounted > filesystems. It must be something else. As per Anders bisection results the first bad commit pointing to ba858e55b205 ("bdev: open block device as files") - Naresh
