Date: Thu, 22 Jan 2026 14:16:16 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 292645] ZFS: panic in zvol_geom_open triggered by aio_test:vectored_unaligned Message-ID: <bug-292645-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292645 Bug ID: 292645 Summary: ZFS: panic in zvol_geom_open triggered by aio_test:vectored_unaligned Product: Base System Version: 16.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: asomers@FreeBSD.org There is a reproducible kernel panic easily triggered by our regular test suite. I've just hit it three times in a row. It doesn't happen on every single execution; it may take about a hundred runs Steps to Reproduce ================== $ sudo sysctl vfs.aio.enable_unsafe=1 $ sudo kyua debug aio_test:vectored_unaligned Stack Trace =========== Tracing command "geom\000l", '\000' <repeats 13 times> pid 13 tid 100117 (CPU 7) #0 __curthread () at /usr/home/somers/src/freebsd.org/src/sys/amd64/include/pcpu_aux.h:57 #1 doadump (textdump=textdump@entry=0) at /usr/home/somers/src/freebsd.org/src/sys/kern/kern_shutdown.c:399 #2 0xffffffff804b3a7a in db_dump (dummy=<optimized out>, dummy2=<optimized out>, dummy3=<optimized out>, dummy4=<optimized out>) at /usr/home/somers/src/freebsd.org/src/sys/ddb/db_command.c:596 #3 0xffffffff804b386d in db_command (last_cmdp=<optimized out>, cmd_table=<optimized out>, dopager=true) at /usr/home/somers/src/freebsd.org/src/sys/ddb/db_command.c:508 #4 0xffffffff804b352d in db_command_loop () at /usr/home/somers/src/freebsd.org/src/sys/ddb/db_command.c:555 #5 0xffffffff804b6f26 in db_trap (type=<optimized out>, code=<optimized out>) at /usr/home/somers/src/freebsd.org/src/sys/ddb/db_main.c:267 #6 0xffffffff80c162ef in kdb_trap (type=type@entry=3, code=code@entry=0, tf=tf@entry=0xfffffe00d82428a0) at /usr/home/somers/src/freebsd.org/src/sys/kern/subr_kdb.c:790 #7 0xffffffff8112156e in trap (frame=<optimized out>) at /usr/home/somers/src/freebsd.org/src/sys/amd64/amd64/trap.c:614 #8 <signal handler called> #9 kdb_enter (why=<optimized out>, msg=<optimized out>) at /usr/home/somers/src/freebsd.org/src/sys/kern/subr_kdb.c:556 #10 0xffffffff80bc697b in vpanic (fmt=0xffffffff812af1e9 "%s", ap=ap@entry=0xfffffe00d8242ad0) at /usr/home/somers/src/freebsd.org/src/sys/kern/kern_shutdown.c:962 #11 0xffffffff80bc67e3 in panic ( fmt=0xffffffff81da1a10 <cnputs_mtx> "\241\364 \201\377\377\377\377") at /usr/home/somers/src/freebsd.org/src/sys/kern/kern_shutdown.c:887 #12 0xffffffff8112205c in trap_fatal (frame=<optimized out>, eva=<optimized out>) at /usr/home/somers/src/freebsd.org/src/sys/amd64/amd64/trap.c:969 #13 0xffffffff8112205c in trap_pfault (frame=0xfffffe00d8242b70, usermode=false, signo=<optimized out>, ucode=<optimized out>) #14 <signal handler called> #15 _sx_xlock_hard (sx=sx@entry=0xfffff803329f8e90, x=<optimized out>, opts=opts@entry=0, file=file@entry=0xffffffff82f26bab "/usr/home/somers/src/freebsd.org/src/sys/contrib/openzfs/module/os/freebsd/zfs/zvol_os.c", line=line@entry=233) at /usr/home/somers/src/freebsd.org/src/sys/kern/kern_sx.c:680 #16 0xffffffff80bd0adc in _sx_xlock (sx=sx@entry=0xfffff803329f8e90, opts=opts@entry=0, file=0xffffffff82f26bab "/usr/home/somers/src/freebsd.org/src/sys/contrib/openzfs/module/os/freebsd/zfs/zvol_os.c", line=line@entry=233) at /usr/home/somers/src/freebsd.org/src/sys/kern/kern_sx.c:330 #17 0xffffffff82c77c31 in zvol_geom_open (pp=0xfffff80088787600, count=1, flag=<optimized out>) at /usr/home/somers/src/freebsd.org/src/sys/contrib/openzfs/module/os/freebsd/zfs/zvol_os.c:233 #18 zvol_geom_access (pp=0xfffff80088787600, acr=<optimized out>, acw=0, ace=<optimized out>) at /usr/home/somers/src/freebsd.org/src/sys/contrib/openzfs/module/os/freebsd/zfs/zvol_os.c:478 #19 0xffffffff80af6c0e in g_access (cp=cp@entry=0xfffff80088783e80, dcr=dcr@entry=1, dcw=dcw@entry=0, dce=dce@entry=0) at /usr/home/somers/src/freebsd.org/src/sys/geom/geom_subr.c:1050 #20 0xffffffff80afa48d in g_label_taste ( mp=0xffffffff81ab6e00 <g_label_class>, pp=0xfffff80088787600, flags=<optimized out>) at /usr/home/somers/src/freebsd.org/src/sys/geom/label/g_label.c:410 #21 0xffffffff80af793a in g_new_provider_event (arg=0xfffff80088787600, flag=<optimized out>) at /usr/home/somers/src/freebsd.org/src/sys/geom/geom_subr.c:604 #22 0xffffffff80af1f84 in one_event () at /usr/home/somers/src/freebsd.org/src/sys/geom/geom_event.c:257 #23 g_run_events () at /usr/home/somers/src/freebsd.org/src/sys/geom/geom_event.c:280 #24 0xffffffff80b75aa2 in fork_exit ( callout=0xffffffff80af4970 <g_event_procbody>, arg=0x0, frame=0xfffffe00d8242f40) at /usr/home/somers/src/freebsd.org/src/sys/kern/kern_fork.c:1198 #25 <signal handler called> -- You are receiving this mail because: You are the assignee for the bug.home | help
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