Messages in this thread | ![/](/images/icornerl.gif) | | From | John Stultz <> | Date | Tue, 2 Jun 2020 12:40:29 -0700 | Subject | Re: [PATCH] wireless: ath10k: Return early in ath10k_qmi_event_server_exit() to avoid hard crash on reboot |
| |
On Tue, Jun 2, 2020 at 12:16 PM Brian Norris <briannorris@chromium.org> wrote: > > + Sibi > > On Mon, Jun 1, 2020 at 10:25 PM John Stultz <john.stultz@linaro.org> wrote: > > > > Ever since 5.7-rc1, if we call > > ath10k_qmi_remove_msa_permission(), the db845c hard crashes on > > reboot, resulting in the device getting stuck in the usb crash > > debug mode and not coming back up wihthout a hard power off. > > > > This hack avoids the issue by returning early in > > ath10k_qmi_event_server_exit(). > > > > A better solution is very much desired! > > Any chance you can bisect what caused this? There are a lot of > non-ath10k pieces involved in this stuff.
Amit had spent some work on chasing it down to the in kernel qrtr-ns work, and reported it here: https://lists.infradead.org/pipermail/ath10k/2020-April/014970.html
But that discussion seemingly stalled out, so I came up with this hack to workaround it for us.
thanks -john
| ![\](/images/icornerr.gif) |