Date: Mon, 24 Nov 2014 14:40:52 -0500 From: Zaphod Beeblebrox <zbeeble@gmail.com> To: freebsd-fs <freebsd-fs@freebsd.org> Subject: What does it mean when zdb -R x:xxx:xxx:g crashes? Message-ID: <CACpH0Mfmh4M_eTD2PvZr2EPHD1X4x3jB61Nbg%2BUm5Cv-3AdQ2Q@mail.gmail.com>
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So... another barrier in figuring out my zfs problem is that zdb crashes when asked to print the gang block header: [1:97:397]root@virtual:/vr1/tmp/diag> zdb -AAA -R vr2 0:94048dc9000:24000:g Found vdev type: raidz Assertion failed: (zio->io_error == 0 || (zio->io_flags & ZIO_FLAG_CANFAIL)), file /usr/src/cddl/lib/libzpool/../../../sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c, line 3297. Abort trap (core dumped) Now... this trace looks odd to me: there are no bookmarks in the filesystem... neither are there snapshots for this specific filesystem. (gdb) bt #0 0x0000000801cb26ca in thr_kill () from /lib/libc.so.7 #1 0x0000000801d87149 in abort () from /lib/libc.so.7 #2 0x0000000801920e21 in zio_init () from /lib/libzpool.so.2 #3 0x0000000801927e0e in zbookmark_is_before () from /lib/libzpool.so.2 #4 0x0000000801922df7 in zio_execute () from /lib/libzpool.so.2 #5 0x0000000801927f11 in zbookmark_is_before () from /lib/libzpool.so.2 #6 0x0000000801922df7 in zio_execute () from /lib/libzpool.so.2 #7 0x0000000801927f11 in zbookmark_is_before () from /lib/libzpool.so.2 #8 0x0000000801922df7 in zio_execute () from /lib/libzpool.so.2 #9 0x0000000801927f11 in zbookmark_is_before () from /lib/libzpool.so.2 #10 0x0000000801922df7 in zio_execute () from /lib/libzpool.so.2 #11 0x0000000801927f11 in zbookmark_is_before () from /lib/libzpool.so.2 #12 0x0000000801922df7 in zio_execute () from /lib/libzpool.so.2 #13 0x000000080191b8d9 in taskq_create () from /lib/libzpool.so.2 #14 0x0000000800e814f5 in pthread_create () from /lib/libthr.so.3 #15 0x00007ffff6fb9000 in ?? () Cannot access memory at address 0x7ffff71b9000 Help?
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