On Thu, Oct 30, 2025 at 12:21:24PM +0800, Peng Fan wrote: > Hi Tanmay, > > On Wed, Oct 29, 2025 at 06:51:51PM -0500, Tanmay Shah wrote: > ... > >> > > >> > >> Hi Peng, > >> > >> I don't understand why it should fail. The patch simply implements > >> rproc_detach() -> rproc_attach() sequence. > >> > > > >Hi Peng, > > > >Thanks for testing the patch. I appreciate your quick response. I think > >rproc_boot() should be used instead of rproc_attach(). That should probably > >solve the issue you are facing. I will send v2 with this change for you to > >try. > > > >Thanks, > >Tanmay > > > >> In your case, when you do detach -> attach via sysfs that sequence works? > >> If that works, then crash recovery should work as well. > > sysfs does not have attach option, only start/stop/detach are there. > > >> > >> Could you give steps how do you generate the crash? > > I have not look into the details on why it fails at my side for the 2nd time. > > On my board, the M4 core use watchdog to reset itself and notify Linux, then > linux side imx_rproc driver will do > "rproc_report_crash(priv->rproc, RPROC_WATCHDOG);" > > I will give a debug on the failures in a few days. >
So what is happening here - Peng, do you plan on providing more debugging information? Tanmay - are you planning on sending a second revision? > Thanks, > Peng > > >> > >> Thanks, > >> Tanmay > >> > >> > Thanks, > >> > Peng > >> > >
