Hi,
We're getting some lockdep splats with 6.11-rc1 in some of our older CI
machines:
<4>[ 25.357106] ======================================================
<4>[ 25.358383] WARNING: possible circular locking dependency detected
<4>[ 25.359636] 6.11.0-rc1-CI_DRM_15151-gb6f9528c7fff+ #1 Not tainted
<4>[ 25.360902] ------------------------------------------------------
<4>[ 25.362184] rc.local/609 is trying to acquire lock:
<4>[ 25.363450] ffff888102358670 (&q->limits_lock){+.+.}-{3:3}, at: queue_max_discard_sectors_store+0x8e/0x110
<4>[ 25.364798]
but task is already holding lock:
<4>[ 25.367410] ffff888102358550 (&q->sysfs_lock){+.+.}-{3:3}, at: queue_attr_store+0x45/0x90
<4>[ 25.368773]
which lock already depends on the new lock.
...during device probe. You can find the full dmesg, for example, here:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_15151/fi-bsw-n3050/boot0.txt
The stackdumps seem to point to sd_probe() and sd_revalidate_disk().
Is this an known issue? Does anyone have any idea what is causing it?
--
Cheers,
Luca.
