Hi Ajish,
Have you made any progress on the hang which I see on my arm64 system?
Not planned for ARM server.
I think that you said that you can also see it on an arm64 system - would that
be with a similar card to mine? I think mine is 8008/9
That was similar card i.e. 8076.
I have tested some older kernels and v4.11 seems much better.
Thanks,
John
Just to get more clarification, in the same thread
following issues were mentioned. Right now
I am on x86 server. Don't have 8008/8009 controller
with me here.
Issues:
1. Driver crashes when IOMMU is enabled. Patch already
submitted.
- Issue was seen on x86 server too.
2. Observed triggering of scsi error handler on
ARM server.
- Issue not observed on x86 server
Your position on this is not clear on this one.
From an earlier mail [0] I got the impression that you tested on an arm
platform – did you?
I just don't know for certain that this is a card issue or an issue with
the driver issue or both. I have a strong feeling that it is a driver
issue. As I mentioned, v4.11 seems to work much better than v5.16 - on
v4.11 I can mount the filesystem and copy files, which is not possible
on a new kernel.
IIRC I did use this same card on an x86 platform some time and it worked
ok, but I can't be certain. And it's really painful for me to swap the
card to an x86 machine to test.
3. maxcpus=1 on commandline crashes during bootup.
Issue with 8008/8009 controller. Patch created.
- Issue impacts x86 too based on the code.
4. "I have found another issue. There is a potential
use-after-free in pm8001_task_exec():", where we
modify task state post task dispatch to hardware
- Generic code. Impact on all platform x86 and ARM.
Let us know if any other issue missed out to
mention here or issues that impacts x86 too.
Your list looks ok. However I did also mention these logs which I saw on
my arm machine:
[ 12.160631] sas: target proto 0x0 at 500e004aaaaaaa1f:0x10 not handled
[ 12.167183] sas: ex 500e004aaaaaaa1f phy16 failed to discover
They are red flags, and may be related to 2, above.
Thanks,
John
[0]
https://lore.kernel.org/linux-scsi/PH0PR11MB51122D76F40E164C31AFEE54EC719@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
