Diffusion FreeBSD src repository 4fbbe523653b

nvme: Replace potentially long DELAY() with pause().
4fbbe523653b
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Description

nvme: Replace potentially long DELAY() with pause().

In some cases like broken hardware nvme(4) may wait minutes for
controller response before timeout. Doing so in a tight spin loop
made whole system unresponsive.

Reviewed by: imp
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D29309
Sponsored by: iXsystems, Inc.

Details

Provenance

mav	Authored on Mar 17 2021, 2:30 PM

Reviewer

imp

Differential Revision

D29309: nvme: Replace potentially long DELAY()'s with pause()'s

Parents

rGf187d6dfbf63: base: remove if_wg(4) and associated utilities, manpage

Branches

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Tags

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Event Timeline

mav committed rG4fbbe523653b: nvme: Replace potentially long DELAY() with pause(). (authored by mav).Mar 17 2021, 2:35 PM

mav added an edge: D29309: nvme: Replace potentially long DELAY()'s with pause()'s.

mav mentioned this in rGed407c92e43f: nvme: Replace potentially long DELAY() with pause()..Mar 24 2021, 1:26 AM

mav mentioned this in rGd00a723a2a5c: nvme: Replace potentially long DELAY() with pause()..

Changes (1)

Path

Size

sys/

dev/

nvme/

nvme_ctrlr.c

rG4fbbe523653b

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