Date: Tue, 11 Aug 2020 16:36:39 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 248606] zfs receive: Input/output error accessing dataset after resuming interrupted receive Message-ID: <bug-248606-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248606 Bug ID: 248606 Summary: zfs receive: Input/output error accessing dataset after resuming interrupted receive Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: asomers@FreeBSD.org If "zfs send" gets interrupted the destination dataset will be left in a mounted, accessible state. However, after resuming the transfer (with zfs send -t) the destination dataset will be left in a mounted by inaccessible state, returning EIO for all accesses. Unmounting and remounting it suffices to fix the problem. Steps to reproduce: $ cd / $ sudo zpool create testpool vtbd1 $ sudo zfs create testpool/src $ sudo zfs create testpool/dst $ sudo dd if=/dev/zero bs=1m count=2048 of=/testpool/src/zerofile 2048+0 records in 2048+0 records out 2147483648 bytes transferred in 8.584807 secs (250149331 bytes/sec) $ sudo zfs snapshot testpool/src@1 $ sudo zfs send -v testpool/src@1 | sudo zfs recv -Fsv testpool/dst full send of testpool/src@1 estimated size is 2.00G total estimated size is 2.00G full send of testpool/src@1 estimated size is 2.00G TIME SENT SNAPSHOT receiving full stream of testpool/src@1 into testpool/dst@1 10:31:19 83.3M testpool/src@1 10:31:20 479M testpool/src@1 10:31:21 479M testpool/src@1 cannot receive new filesystem stream: checksum mismatch or incomplete stream. Partially received snapshot is saved. A resuming stream can be generated on the sending system by running: zfs send -t 1-bfb9f6182-b8-789c636064000310a500c4ec50360710e72765a52697303030419460caa7a515a7968064441461f26c48f2499525a9c540fa82b9962236fd25f9e9a599290c0cd71e84f16f0ff8705d03499e132c9f97989b0aa4538b4b0af2f373f48b8b921d0c216e010068421904 fish: Process 37889, 'sudo' 'sudo zfs send -v testpool/src@1…' terminated by signal SIGTERM (Polite quit request) # (In another terminal) $ sudo pkill -f "zfs send -v testpool/src@1" # (Back in the original terminal) $ ls -a testpool/dst ./ ../ $ zfs get mounted testpool/dst NAME PROPERTY VALUE SOURCE testpool/dst mounted yes $ sudo zfs send -t 1-bfb9f6182b8-789c636064000310a500c4ec50360710e72765a52697303030419460caa7a515a7968064441461f26c48f2499525a9c540fa82b9962236fd25f9e9a599290c0cd71e84f16f0ff8705d03499e132c9f97989b0aa4538b4b0af2f373f48b8b921d0c216e010068421904 | sudo zfs recv -Fsv testpool/dst $ ls -a testpool/dst ls: testpool/dst: Input/output error $ zfs get mounted testpool/dst NAME PROPERTY VALUE SOURCE testpool/dst mounted yes - $ sudo zfs unmount testpool/dst && sudo zfs mount testpool/dst $ ls -a testpool/dst ./ ../ zerofile -- You are receiving this mail because: You are the assignee for the bug.help
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