On Thu, Apr 20, 2023 at 04:04:07PM +0800, Yi Zhang wrote: > Hi Chaitanya > > Sorry for the late response, as it take me some time to bisect this > issue, seems it was introduced with the below commit: > > 23f3e3272e7a4d9fb870485cd6df1e4f9539282c > Author: Xiao Ni <xni@xxxxxxxxxx> > Date: Thu Feb 9 11:19:30 2023 +0800 > > block: Merge bio before checking ->cached_rq > Yeah, sched bio merge still needs queue reference to be grabbed, but plug merge needn't it. The simple fix is to revert the above commit. Thanks, Ming
