Re: [PATCH] ceph/iov_iter: fix bad iov_iter handling in ceph splice codepaths

2017-01-09 Thread Jeff Layton
On Fri, 2017-01-06 at 13:23 -0500, Jeff Layton wrote: > xfstest generic/095 triggers soft lockups in kcephfs. Basically it uses > fio to drive some I/O via vmsplice ane splice. Ceph then ends trying to > access an ITER_BVEC type iov_iter as a ITER_IOVEC one. That causes it to > pick up a wrong offs

Re: [PATCH] ceph/iov_iter: fix bad iov_iter handling in ceph splice codepaths

2017-01-06 Thread Jeff Layton
On Fri, 2017-01-06 at 13:23 -0500, Jeff Layton wrote: > xfstest generic/095 triggers soft lockups in kcephfs. Basically it uses > fio to drive some I/O via vmsplice ane splice. Ceph then ends trying to > access an ITER_BVEC type iov_iter as a ITER_IOVEC one. That causes it to > pick up a wrong offs

[PATCH] ceph/iov_iter: fix bad iov_iter handling in ceph splice codepaths

2017-01-06 Thread Jeff Layton
xfstest generic/095 triggers soft lockups in kcephfs. Basically it uses fio to drive some I/O via vmsplice ane splice. Ceph then ends trying to access an ITER_BVEC type iov_iter as a ITER_IOVEC one. That causes it to pick up a wrong offset and get stuck in an infinite loop while trying to populate