Date: Sun, 16 Nov 2014 16:15:08 +0000 From: Steven Hartland <killing@multiplay.co.uk> To: freebsd-stable@freebsd.org Subject: Re: ZFS pool creation from files leads to a crash Message-ID: <5468CD8C.7070500@multiplay.co.uk> In-Reply-To: <54685EB8.9050800@FreeBSD.org> References: <CAHHzeCWv=iw1Vc7ECEZsviphQ7k4cw3D6crDNOaM1Jsd7yM8LQ@mail.gmail.com> <CAHM0Q_Ntt_cgRAvBZGzBcZkE-Ua0wkfF3O-kfPbWF=5WQHWjyQ@mail.gmail.com> <54685EB8.9050800@FreeBSD.org>
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On 16/11/2014 08:22, Andriy Gapon wrote: > On 16/11/2014 09:29, K. Macy wrote: >> #23 0xffffffff819b9a2c in zfs_vn_rdwr (rw=UIO_WRITE, >> vp=0xfffff8005d94a3b0, base=0x0, len=104857600, offset=0, >> seg=UIO_SYSSPACE, ioflag=128, ulimit=0, cr=0xfffff80002cd9000, >> residp=0xfffffe01219f6f18) at vnode.h:237 >> #24 0xffffffff819b9706 in vdev_file_io_start (zio=0xfffff80009ebb000) >> at /usr/home/kmacy/devel/freebsd-head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_file.c:188 >> #25 0xffffffff819fcea3 in zio_vdev_io_start (zio=0xfffff80009ebb000) >> at /usr/home/kmacy/devel/freebsd-head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2709 >> #26 0xffffffff819f51f1 in zio_execute (zio=0xfffff80009ebb000) >> at /usr/home/kmacy/devel/freebsd-head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1409 >> #27 0xffffffff819f368a in zio_wait (zio=0xfffff80009ebb000) >> at /usr/home/kmacy/devel/freebsd-head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1433 >> #28 0xffffffff819bb51e in vdev_label_init (vd=0xfffff80009919800, >> crtxg=4, reason=VDEV_LABEL_CREATE) >> at /usr/home/kmacy/devel/freebsd-head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c:718 > Seems like this crash is caused by vdev_file_io_start being blissfully unaware > of ZIO_TYPE_FREE. > It is indeed see the following bug for breakdown and patch: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195061 I'd love to know why I can run this many times over here and not a single sign of a panic :( Regards Steve
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