On 20/07/2016 17:26, Karl Denninger wrote: > #185 0xffffffff8222955d in zio_vdev_io_start (zio=0xfffff80108754770) > at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2870 > #186 0xffffffff82225d96 in zio_execute (zio=<value optimized out>) > at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1556 > #187 0xffffffff8220c72d in vdev_queue_io_done (zio=<value optimized out>) > at > /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_queue.c:887 > #188 0xffffffff82229719 in zio_vdev_io_done (zio=0xfffff804cfdf7770) > at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2895 > #189 0xffffffff82225d96 in zio_execute (zio=<value optimized out>) > at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1556 > #190 0xffffffff8222955d in zio_vdev_io_start (zio=0xfffff804cfdf7770) > at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2870 > #191 0xffffffff82225d96 in zio_execute (zio=<value optimized out>) > at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1556 > #192 0xffffffff8220c72d in vdev_queue_io_done (zio=<value optimized out>) > at > /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_queue.c:887 > #193 0xffffffff82229719 in zio_vdev_io_done (zio=0xfffff801469a13b8) > at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2895 > #194 0xffffffff82225d96 in zio_execute (zio=<value optimized out>) > at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1556 > #195 0xffffffff8222955d in zio_vdev_io_start (zio=0xfffff801469a13b8) > at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2870 > #196 0xffffffff82225d96 in zio_execute (zio=<value optimized out>) > at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1556 > #197 0xffffffff8220c72d in vdev_queue_io_done (zio=<value optimized out>) > at > /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_queue.c:887 > #198 0xffffffff82229719 in zio_vdev_io_done (zio=0xfffff805dcd9d3b8)
I see how this pseudo-recursion can happen in theory, but not why it has happened. It would interesting to see 3 or 4 of zio-s printed, including the top-most one at 0xfffff805dcd9d3b8. Something like: set print pretty p *zio p *zio->io_vd p *zio->io_vd->vdev_ops in several frames. -- Andriy Gapon _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
