On 2018/11/03 4:24, Dmitry Vyukov wrote: >> Dmitry, it is impossible to check what these lock holders are doing without dump of these threads >> (they are not always TASK_UNINTERRUPTIBLE waiters; e.g. PID=18508 is TASK_RUNNING with a lock held). > > I know. One day I will hopefully get to implementing dump collection... > >> Jens, when can we start testing "[PATCH v3] block/loop: Serialize ioctl operations." ? > > Was that merged? If we have a potential fix, merging it may be the > simplest way to address it without debugging. > I see that this "[v4] block/loop: Serialize ioctl operations." still > has "State: New": > https://patchwork.kernel.org/patch/10612217/ > Jan Kara is going to resend https://marc.info/?i=20181010100415.26525-1-jack@xxxxxxx after the merge window closes.
