On Tue, May 06, 2025 at 04:16:25PM +0300, Jared Holzman wrote: > On 06/05/2025 5:13, Ming Lei wrote: > > On Mon, May 05, 2025 at 07:06:37PM +0300, Jared Holzman wrote: > >> Hi Ming, > >> > >> I'm attempting to back port the fix for this issue to the 6.14-stable branch. > >> > >> Greg Kroah-Hartman has already applied d6aa0c178bf8 - "ublk: call ublk_dispatch_req() for handling UBLK_U_IO_NEED_GET_DATA", > >> but was unable to apply f40139fde527 cleanly. > >> > >> I created the patch below. It applies and compiles, but when I rerun the scenario I get several hung tasks waiting on the ub->mutex > >> which is being held by the following task: > > > > Hi Jared, > > > > You need to pull in the following patchset too: > > > > https://lore.kernel.org/linux-block/20250416035444.99569-1-ming.lei@xxxxxxxxxx/ > > > > which avoids ub->mutex in error handling code path. > > > > I just picked them in the following tree: > > > > https://github.com/ming1/linux/commits/linux-6.14.y/ > > > > Please test and see if they work for you. > > > > > > Thanks, > > Ming > > > > Hi Ming, > > Tested. It works great! > > Will you be sending a pull request to Greg or should I send him the patches? Hi Jared, Please make a PR and send to Greg since I didn't test & verify it on 6.14-y tree yet. And please Cc me, I will give one double review. Thanks, Ming
