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SubjectRe: Regression in kernel 4.9-rcX - bisected to commit a481daa88fd4
On 31.10.2016 00:32, Larry Finger wrote:
> With the 4.9-rcX kernel, my Dell Latitude D600 laptop has a kernel panic on
> shutdown in routine radeon_connector_unregister(). This problem has been
> bisected to show that commit a481daa88fd4 ("drm/radeon: always apply pci
> shutdown callbacks") is at fault.
> In the routine that crashes, the ddc_bus member of the struct drm_connector is
> NULL, thus the following one-line (line-wrapped) patch fixes the problem:
> […]
> The above change will soon be submitted as a proper patch. This posting to LKML
> is intended to publicize the regression as soon as possible.

JFYI: I added this report to the list of regressions for Linux 4.9. I'll
watch this thread for further updates on this issue to document progress
in my weekly reports. Please let me know via
in case the discussion moves to a different place (bugzilla or another
mail thread for example).

Current status (afaics): Patch available

tia! Ciao, Thorsten

P.S.: Thx for CCing me!

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