One more attempt rebuilding zfs.kmod with the patch; now the ccd device comes as expected: ... ccd0: Concatenating 1 components ccd0: /dev/zvol/dsk/tank/testu (4194304 blocks) ccd0: total 4194304 blocks ...
but istgt still panics the system in exactly the same way. On Sat, 29 Feb 2020 at 09:58, Chavdar Ivanov <ci4...@gmail.com> wrote: > > On Sat, 29 Feb 2020 at 06:47, Michael van Elst <mlel...@serpens.de> wrote: > > > > On Fri, Feb 28, 2020 at 02:12:29PM +0000, Chavdar Ivanov wrote: > > > On Thu, 27 Feb 2020 at 20:41, Michael van Elst <mlel...@serpens.de> wrote: > > > > I've prepared a patch for -current that fixes this issue. > > > > http://ftp.netbsd.org/pub/NetBSD/misc/mlelstv/zvol.patch > > > > > > After applying the patch, rebuilding and upgrading the whole system, > > > now net/istgt reliably crashes the whole system: > > > > With lots of things changed it is difficult to identify the reason. > > Does it still crash when you now remove that patch (only that patch) ? > > No, istgt works after reverting. > > > > > > fatal integer divide fault in supervisor mode > > > trap type 8 code 0 rip 0xffffffff80abd3bf cs 0x8 rflags 0x10246 cr2 > > > 0x7931f26ff000 ilevel 0 rsp 0xffffbf8197b93db0 > > > > Please use the addr2line tool to find out what source line the > > address 0xffffffff80abd3bf corresponds to. > > addr2line didn't return anything (most likely I was invoking it wrong, > I don't know). > > gdb points to spec_read: > > (gdb) target kvm netbsd.12.core > 0xffffffff80224225 in cpu_reboot () > (gdb) bt > #0 0xffffffff80224225 in cpu_reboot () > #1 0xffffffff809fde2f in kern_reboot () > #2 0xffffffff80a40299 in vpanic () > #3 0xffffffff80a4035d in panic () > #4 0xffffffff8022669d in trap () > #5 0xffffffff8021ed43 in alltraps () > #6 0xffffffff80abd3bf in spec_read () > #7 0xffffffff80ab0d6e in VOP_READ () > #8 0xffffffff80aa8025 in vn_read () > #9 0xffffffff80a4df87 in dofileread () > #10 0xffffffff80a4e04f in sys_read () > #11 0xffffffff80255cb9 in syscall () > #12 0xffffffff802096ad in handle_syscall () > > > > > > > > > Greetings, > > -- > > Michael van Elst > > Internet: mlel...@serpens.de > > "A potential Snark may lurk in every tree." > > > > -- > ---- -- ----