Re: panic: syncache: mbuf too small

Can you examine max_linkhdr?

Drew

On Tue, Feb 8, 2022 at 1:58 PM Bjoern A. Zeeb <
bzeeb-lists@lists.zabbadoz.net> wrote:

> Hi,
>
> I just came to a console finding this.  The tree is from a few days ago;
> is this known or should I investigate if it happens again?   I sadly cannot
> dump on this machine.
>
> /bz
>
> db> show panic
> panic: syncache: mbuf too small
> db> where
> Tracing pid 0 tid 100014 td 0xfffffe000937a740
> kdb_enter() at kdb_enter+0x37/frame 0xfffffe0007fa15b0
> vpanic() at vpanic+0x1b0/frame 0xfffffe0007fa1600
> panic() at panic+0x43/frame 0xfffffe0007fa1660
> syncache_respond() at syncache_respond+0x777/frame 0xfffffe0007fa1730
> syncache_add() at syncache_add+0xa71/frame 0xfffffe0007fa18c0
> tcp_input_with_port() at tcp_input_with_port+0x14f5/frame
> 0xfffffe0007fa1a20
> tcp6_input_with_port() at tcp6_input_with_port+0x69/frame
> 0xfffffe0007fa1a50
> tcp6_input() at tcp6_input+0xb/frame 0xfffffe0007fa1a60
> ip6_input() at ip6_input+0xc2f/frame 0xfffffe0007fa1b40
> netisr_dispatch_src() at netisr_dispatch_src+0xaf/frame 0xfffffe0007fa1ba0
> ether_demux() at ether_demux+0x16e/frame 0xfffffe0007fa1bd0
> ether_nh_input() at ether_nh_input+0x3fc/frame 0xfffffe0007fa1c30
> netisr_dispatch_src() at netisr_dispatch_src+0xaf/frame 0xfffffe0007fa1c90
> ether_input() at ether_input+0x99/frame 0xfffffe0007fa1cf0
> iflib_rxeof() at iflib_rxeof+0xcb3/frame 0xfffffe0007fa1e00
> _task_fn_rx() at _task_fn_rx+0x7a/frame 0xfffffe0007fa1e40
> gtaskqueue_run_locked() at gtaskqueue_run_locked+0xa7/frame
> 0xfffffe0007fa1ec0
> gtaskqueue_thread_loop() at gtaskqueue_thread_loop+0xc2/frame
> 0xfffffe0007fa1ef0
> fork_exit() at fork_exit+0x80/frame 0xfffffe0007fa1f30
> fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0007fa1f30
> --- trap 0, rip = 0, rsp = 0, rbp = 0 ---
>
>
> --
> Bjoern A. Zeeb                                                     r15:7
>
>