Date: Thu, 23 Jul 2009 10:22:13 +0200 From: Thomas Backman <serenity@exscape.org> To: bug-followup@FreeBSD.org, freebsd@r.zeeb.org Cc: freebsd-fs@freebsd.org, FreeBSD current <freebsd-current@freebsd.org> Subject: Re: kern/132337: [zfs] [panic] kernel panic in zfs_fuid_create_cred Message-ID: <AD67B13F-3D9C-4F0D-A328-76ED0C355AB3@exscape.org>
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Hey all, Unfortunately, this PR appears to still be unfixed. Is anyone looking at this? I tried to set up a diskless client over NFS yesterday, running ZFS on /, and ran in to this panic (exact same backtrace as the PR (see bottom the this mail)) a lot of times. In the end, I created a ZVOL with UFS on it, and the panics disappeared as expected - since it no longer has to work directly with files on a ZFS *filesystem*. It seems to be pretty easy to trigger, as I couldn't finish the boot process on the diskless client more than once until I went with UFS. Since then I've gotten 0 panics. FWIW, my /etc/exports (I know now R/W NFS root isn't a good idea, but it might be relevant): /diskless -maproot=0 -alldirs 192.168.1.6 Regards, Thomas Backtrace: panic: zfs_fuid_create_cred cpuid = x KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a panic() at panic+0x182 zfs_fuid_create_cred() at zfs_fuid_create_cred+0x56 zfs_perm_init() at zfs_perm_init+0x84 zfs_mknode() at zfs_mknode+0x24e zfs_freebsd_create() at zfs_freebsd_create+0x617 VOP_CREATE_APV() at VOP_CREATE_APV+0xb3 nfsrv_create() at nfsrv_create+0x909 nfssvc_program() at nfssvc_program+0x1a1 svc_run_internal() at svc_run_internal+0x62b svc_thread_start() at svc_thread_start+0xb fork_exit() at fork_exit+0x12a fork_trampoline() at fork_trampoline+0xe
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