Bug#801925: NULL pointer dereference: IP: [<f828a00c>] sr_runtime_suspend+0xc/0x20 [sr_mod]
On Tue, 19 Jan 2016, Erich Schubert wrote:
> Hi,
> Attached are photos of the Kernel null pointer BUG that I'm observing.
>
> These shots are with 4.4.0-rc8.
> As you can see, I have a similar trace to Paul, but the error occurs
> one stack frame earlier?
Yours is only slighly similar to Paul's. He got an error in
sr_runtime_suspend, but your error occurs in sd_resume -- a completely
different function in a different source file.
> Maybe Alex issue is the same bug, but triggered slightly different or
> just the kernel compiled differently.
> __rpm_callback, scsi_autopm_put_device, __pm_runtime_resume, sd_probe
> is present in all of these traces.
>
> Sorry, I do not have a lot of time right now to help testing or debugging.
I can't tell what's going wrong without some real debugging. This
means somebody has to build and test a patched kernel. There are no
problems on my computer, so it will have to be one or more of you guys.
Alan Stern
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