On Tue, 27 Mar 2007, James Bottomley wrote:
> On Tue, 2007-03-27 at 17:25 +0100, Hugh Dickins wrote:
> > I'm not using an initrd, most of my kernel is builtin,
> > just a few modules for occasional filesystems.
> > 
> > CONFIG_MODULES=y
> > CONFIG_SCSI=y
> > CONFIG_SCSI_SCAN_ASYNC=y
> > CONFIG_SCSI_WAIT_SCAN=m
> > 
> > 2.6.21-rc5-mm2 VFS panics unable to find my root on /dev/sda2,
> > but boots okay if I change drivers/scsi/Kconfig to "default y"
> > instead of "default m" for SCSI_WAIT_SCAN.
> 
> Hmm ... it sounds like there's a missing scsi_complete_async_scans() in
> your environment?  What's your configuration ... which SCSI drivers, and
> which are modules?

Fusion MPT: neither that nor the rest of SCSI modular (apart from this
infamous SCSI_WAIT_SCAN).  Full .config attached.

> 
> scsi_wait_async_scan is supposed to be unnecessary unless you have
> modular SCSI drivers that the initrd needs to wait for root on.