Date: Wed, 28 Dec 2016 12:45:09 -0500 From: Michael Wayne <freebsd07@wayne47.com> To: freebsd-hackers@freebsd.org Subject: ZFS failure leads to panic/boot loop Message-ID: <20161228174509.GR32352@manor.msen.com>
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11.0 server installed from initial setup with ZFS mirrored drives. Ran fine for a few weeks sitting in the rack, then became unresponsive. Plugging in a console showed it was in a panic / boot loop due to ZFS. Would like suggestions on what is wrong that caused this problem as well as how to proceed to recover from it. Typing this from a phone photo of the console screen so showing only what I believe to be relevant; I can supply actual addresses if required. Boot gets to: [...] uhub2: 4 ports... panic: Solaris(panic) blkptr at 0xfffffe0003244b80 has invalid CHECKSUM 0 cpuid - 0 KDB: stack backtrace [...] zfs_panic_recover zfs_blkptr_verify zio_read spa_load_verify
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