On 4/12/19 1:42 AM, Sebastian Andrzej Siewior wrote:
On 2019-04-10 21:07:35 [-0700], Guenter Roeck wrote:
Hi Sebastian,
Hi Guenter,
Unfortunately, this patch causes random crashes.
…
This is seen with an arm64 image running on qemu with machine xlnx-zcu102
and two CPUs, and crypto test options enabled. It happens roughly every
other boot. Reverting the patch fixes the problem. Bisect log (from
crypto/master) is attached.
What is it that you are doing? I had it tcrypt tested on x86-64 before
posting. Let me check it again with the next tree on qemu…
Nothing special. Booting arm64:defconfig+various debug and test options in qemu.
It does not seem to depend on specific boot options. Crash failure rate, based
on the last three of days testing, seems to be roughly 20%. The problem is only
seen if there is more than one CPU. I have seen it with 2, 4, and 6 CPUs active,
but it seems to be most likely to happen with 2 CPUs. I don't have enough data
yet to be sure, though.
The problem is only seen with arm64, at least in my tests.
Guenter
