On Mon, Aug 24, 2020 at 3:10 PM Wen Gong <wgong@xxxxxxxxxxxxxx> wrote: > > On 2020-08-24 16:35, Krishna Chaitanya wrote: > > On Mon, Aug 24, 2020 at 10:03 AM Wen Gong <wgong@xxxxxxxxxxxxxx> wrote: > >> > >> It happened "Kernel panic - not syncing: hung_task: blocked tasks" > >> when > >> test simulate crash and ifconfig down/rmmod meanwhile. > >> > ... > >> > >> #ifdef CONFIG_PM > > Even though your DUT is SDIO based we should be doing this in general > > for all, no? > > core_restart + hif_stop is common to all. > this patch does not have core_restart. I was referring to the combination which is causing the issue. > I dit not hit the issue for others bus(PCIe,SNOC...), so I can not > change them with a > assumption they also have this issue. But that doesn't make sense, the combination is being hit for others also. (they should also endup calling napi_disable twice?) or they are using some other check to avoid this (doesn't appear so from a quick look at the code). So, I am back to my initial guess that the SDIO specific async_rx_work is causing/aggravating this issue.
