On Fri 30-12-16 17:33:53, Xiong Zhou wrote: > On Sat, Dec 24, 2016 at 07:07:14PM +0800, Xiong Zhou wrote: > > Hi lists, > > > > Since around 20161129 tag, LTP rwtest01 on dax mountpoint blocks > > on linux-next tree, now on Linus tree. > > > > In "normal", rwtest01 subcase ends in a few minutes, now it keeps > > running for hours on dax mountpoint, both ext4 and xfs. Ctrl + c > > can interrupt it. > > Test programme is waiting for a memcpy call to return. > > From sysrq output, kernel code is not blocking on somewhere, > it just wont return. I was trying to reproduce this but for me rwtest01 completes just fine on dax mountpoint (I've used your reproducer). So can you sample several kernel stack traces to get a rough idea where the kernel is running? Thanks! Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
