Date: Mon, 24 Nov 2014 15:41:43 -0500 From: Zaphod Beeblebrox <zbeeble@gmail.com> To: freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: What does it mean when zdb -R x:xxx:xxx:g crashes? Message-ID: <CACpH0MeJos7pv08OU6xBF3_wNxK7v-mKo4wrS7-sazzx3wA-=A@mail.gmail.com> In-Reply-To: <CACpH0Mfmh4M_eTD2PvZr2EPHD1X4x3jB61Nbg%2BUm5Cv-3AdQ2Q@mail.gmail.com> References: <CACpH0Mfmh4M_eTD2PvZr2EPHD1X4x3jB61Nbg%2BUm5Cv-3AdQ2Q@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
I have retried this on a brand new pool with a brand new filesystem containing one file. zdb -R x:xxx:xxx:g <--- ie: retrieve the gang block header crashes. It also crashes with -A -AA and -AAA (which are supposed to prevent assertions from stopping the debugger). Help? On Mon, Nov 24, 2014 at 2:40 PM, Zaphod Beeblebrox <zbeeble@gmail.com> wrote: > 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? >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CACpH0MeJos7pv08OU6xBF3_wNxK7v-mKo4wrS7-sazzx3wA-=A>