Re: fstrim on raid1 LV with writemostly PV leads to system freeze

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On 22.09.2023 00:45 +0300, Mike Snitzer wrote:
Given your use of 'writemostly' I'm inferring you're using lvm2's
raid1 that uses MD raid1 code in terms of the dm-raid target.

Yes, exactly.

On 22.09.2023 00:45 +0300, Mike Snitzer wrote:
All said: hopefully someone more MD oriented can review your report
and help you further.
Thank you. I don't need to send a new report to MD maintainers, do I?

On 22.09.2023 01:03 +0300, Roman Mamedov wrote:
Maybe your system hasn't frozen too, just taking its time in processing all
the tiny split requests.
I don't think so, because the disk activity light is off. Let me clarify:
if music was playing when the system froze, the last sound buffer begins to play cyclically.

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