Date: Fri, 13 Jul 2018 14:47:01 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: Alexander Leidinger <Alexander@leidinger.net>, freebsd-fs@freebsd.org Subject: Re: solaris assert triggered after panic in ZFS at mount time Message-ID: <cb63fc18-ee11-28db-ed40-5fb817400378@FreeBSD.org> In-Reply-To: <20180713131227.Horde.S0gjPFGdZFb-68KklzQBXig@webmail.leidinger.net> References: <20180713131227.Horde.S0gjPFGdZFb-68KklzQBXig@webmail.leidinger.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On 13/07/2018 14:12, Alexander Leidinger wrote: > Hi, > > This is with r336194. > > I have a dataset which panics the machine at mount time (during reboot after a > panic): > ---snip--- > panic: solaris assert: dmu_object_claim(zfsvfs->z_os, obj, > DMU_OT_PLAIN_FILE_CONTENTS, 0, obj_type, bonuslen, tx) == 0 (0x11 == 0x0), file: > /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c, line: 819 Hmm, 0x11 == 17 == EEXIST. So, this looks like a possible race in ZIL code. The intent log contains a record to create a file with certain ID, but that file already exists on disk. I don't know what to recommend. Maybe try to import discarding one transaction group... If you can afford losing data from that TXG. > cpuid = 2 > time = 1531477050 > KDB: stack backtrace: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe009ab62a00 > vpanic() at vpanic+0x1a3/frame 0xfffffe009ab62a60 > panic() at panic+0x43/frame 0xfffffe009ab62ac0 > assfail3() at assfail3+0x2c/frame 0xfffffe009ab62ae0 > zfs_mknode() at zfs_mknode+0x1a1/frame 0xfffffe009ab62f30 > zfs_freebsd_create() at zfs_freebsd_create+0x56f/frame 0xfffffe009ab63000 > VOP_CREATE_APV() at VOP_CREATE_APV+0xd3/frame 0xfffffe009ab63030 > zfs_replay_create() at zfs_replay_create+0x60b/frame 0xfffffe009ab63250 > zil_replay_log_record() at zil_replay_log_record+0x215/frame 0xfffffe009ab633a0 > zil_parse() at zil_parse+0x2b5/frame 0xfffffe009ab635a0 > zil_replay() at zil_replay+0xec/frame 0xfffffe009ab63600 > zfsvfs_setup() at zfsvfs_setup+0xb5/frame 0xfffffe009ab63630 > zfs_mount() at zfs_mount+0x72f/frame 0xfffffe009ab637c0 > vfs_domount() at vfs_domount+0x734/frame 0xfffffe009ab639e0 > vfs_donmount() at vfs_donmount+0x807/frame 0xfffffe009ab63a90 > sys_nmount() at sys_nmount+0x50/frame 0xfffffe009ab63ac0 > amd64_syscall() at amd64_syscall+0x263/frame 0xfffffe009ab63bf0 > fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe009ab63bf0 > --- syscall (378, FreeBSD ELF64, sys_nmount), rip = 0x800369b3a, rsp = > 0x7fffffffca98, rbp = 0x7fffffffcb10 --- -- Andriy Gapon
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?cb63fc18-ee11-28db-ed40-5fb817400378>