mirror_zfs/lib
Brian Behlendorf 5e7affae52 Skip /dev/hpet during 'zpool import'
If libblkid does not contain ZFS support, then 'zpool import' will scan
all block devices in /dev/ to determine which ones are components of a
ZFS filesystem.  It does this by opening all the devices and stat'ing
them to determine which ones are block devices.  If the device turns
out not to be a block device it is skipped.

Usually, this whole process is pretty harmless (although slow).  But
there are certain devices in /dev/ which must be handled in a very
specific way or your system may crash.  For example, if /dev/watchdog
is simply opened the watchdog timer will be started and your system
will panic when the timer expires.

It turns out the /dev/hpet causes similiar problems although only when
accessed under a virtual machine.  For some reason accessing /dev/hpet
causes qemu to crash.  To address this issue this commit adds /dev/hpet
to the device blacklist, it will be skipped solely based on its name.
2010-11-12 09:33:17 -08:00
..
libavl Add FAILFAST support 2010-10-12 14:55:02 -07:00
libefi Add FAILFAST support 2010-10-12 14:55:02 -07:00
libnvpair Add FAILFAST support 2010-10-12 14:55:02 -07:00
libspl Fix for access beyond end of device error 2010-11-10 21:29:07 -08:00
libunicode Add FAILFAST support 2010-10-12 14:55:02 -07:00
libuutil Add FAILFAST support 2010-10-12 14:55:02 -07:00
libzfs Skip /dev/hpet during 'zpool import' 2010-11-12 09:33:17 -08:00
libzpool Add FAILFAST support 2010-10-12 14:55:02 -07:00
Makefile.am Add linux libspl support 2010-08-31 13:41:59 -07:00
Makefile.in Add FAILFAST support 2010-10-12 14:55:02 -07:00