summaryrefslogtreecommitdiff
path: root/samples
diff options
context:
space:
mode:
authorOmer Shpigelman <oshpigelman@habana.ai>2020-05-18 22:27:46 +0300
committerOded Gabbay <oded.gabbay@gmail.com>2020-05-25 08:15:33 +0300
commit36fafe87edd636292a4ed6a3af9608f2c7d0d0fb (patch)
treeb2f60fa0e9a465af0048d87073750464faae8ee6 /samples
parent66446820df1864bc371ece679c11152f5f22362c (diff)
habanalabs: don't allow hard reset with open processes
When the MMU is heavily used by the engines, unmapping might take a lot of time due to a full MMU cache invalidation done as part of the unmap flow. Hence we might not be able to kill all open processes before going to hard reset the device, as it involves unmapping of all user memory. In case of a failure in killing all open processes, we should stop the hard reset flow as it might lead to a kernel crash - one thread (killing of a process) is updating MMU structures that other thread (hard reset) is freeing. Stopping a hard reset flow leaves the device as nonoperational and the user can then initiate a hard reset via sysfs to reinitialize the device. Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions