On Sun, Dec 31, 2023 at 07:34:45PM +0100, Kurt Jaeger wrote:
> Hi!
>
> Short overview:
> - Had CURRENT system from around September
> - Upgrade on the 23th of December
> - crashes in ZFS, see
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261538
> for details
> - Reinstalled from scratch with new SSDs drives from
> https://download.freebsd.org/snapshots/amd64/amd64/ISO-IMAGES/15.0/
> freebsd-openzfs-amd64-2020081900-memstick.img.xz
> - Had one crash with
> sysctl -a
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276039
> - Still see crashes with ZFS (and other) when using poudriere to
> build ports.
>
> Problem:
>
> I happen to run in several cases of crashes in ZFS, some of
> them fatal (zpool non-recoverable).
I can crash mine with "sysctl -a" as well.
I seeded my bhyve with:
FreeBSD-15.0-CURRENT-amd64-20231228-fb03f7f8e30d-267242-disc1.iso
Rebuilt the kernel (so now at main-n267320-4d08b569a01) and started
crunching through poudriere package builds. Sorta stock install of encrypted
ZFS. I didn't get it to crash with poudriere (yet). Mine lives in bhyve,
so maybe less possible destruction via crashes.
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame
0xfffffe00fa5f3960
vpanic() at vpanic+0x131/frame 0xfffffe00fa5f3a90
panic() at panic+0x43/frame 0xfffffe00fa5f3af0
sbuf_clear() at sbuf_clear+0xa8/frame 0xfffffe00fa5f3b00
sbuf_cpy() at sbuf_cpy+0x56/frame 0xfffffe00fa5f3b20
spa_taskq_write_param() at spa_taskq_write_param+0x85/frame
0xfffffe00fa5f3bd0
sysctl_root_handler_locked() at sysctl_root_handler_locked+0x9c/frame
0xfffffe00fa5f3c20
sysctl_root() at sysctl_root+0x21e/frame 0xfffffe00fa5f3ca0
userland_sysctl() at userland_sysctl+0x184/frame 0xfffffe00fa5f3d50
sys___sysctl() at sys___sysctl+0x60/frame 0xfffffe00fa5f3e00
amd64_syscall() at amd64_syscall+0x153/frame 0xfffffe00fa5f3f30
fast_syscall_common() at fast_syscall_common+0xf8/frame
0xfffffe00fa5f3f30
--- syscall (202, FreeBSD ELF64, __sysctl), rip = 0x22e42167019a, rsp =
0x22e41ee72518, rbp = 0x22e41ee72550 ---
KDB: enter: panic
The sysctl died at this point, but who knows if it had pending buffered
output or anything...
...
vfs.zfs.zio.deadman_log_all: 0
vfs.zfs.zio.dva_throttle_enabled: 1
vfs.zfs.zio.requeue_io_start_cut_in_line: 1
vfs.zfs.zio.slow_io_ms: 30000
vfs.zfs.zio.taskq_wr_iss_ncpus: 0
