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? Thanks, Jared
