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List:       mesa3d-dev
Subject:    Re: Forcing device loss for debugging
From:       Christian_König <ckoenig.leichtzumerken () gmail ! com>
Date:       2023-09-11 11:21:36
Message-ID: 4c4ffc14-fd61-7ac4-c6d7-3d94dab25d6b () gmail ! com
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Under the sysfs directory for each PCI device you should have a virtual 
file called "remove".

So if you just do an "echo 1 > /sys/devices/pci..../remove" you 
basically simulate hot unplugging the specific PCI device

IIRC the PCI bridge where the device is connected to should then have a 
"rescan" virtual device which triggers hot plugging the device back in 
again when written.

Regards,
Christian.

Am 06.09.23 um 02:27 schrieb Jim Blandy:
> Is there any way to force a Vulkan device to report itself lost, in 
> order to exercise one's application's recovery paths? I looked through 
> the Mesa sources but didn't find anything that seemed suitable.

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