When a USB printer was turned off, perhaps while lpd was printing to it, the kernel paniced with: ulpt0: at uhub1 port 7 (addr 6) disconnected ulpt0: detached panic: Bad tailq NEXT(0xd5924db8->tqh_last) != NULL cpuid = 0 KDB: enter: panic [thread pid 13 tid 100001 ] Stopped at kdb_enter+0x32: leave db> bt Tracing pid 13 tid 100001 td 0xc5915e00 kdb_enter(c0a910d8,0,c0a47d72,e016fc48,0,..) at kdb_enter+0x32 panic(c0a47d72,d5924db8,c0a92274,1ac,c5908c00,...) at panic+0x124 callout_reset(c0b78f28,a,c0558f70,c5908c00,...) at callout_reset+0x169 dcons_timeout(c5908c00,0,c0a92274,f8,0,...) at dcons_timeout+0x81 softcock(0,0,c0a8dd07,471,c59543e4,...) at softclock+0x299 ithread_loop(c5913400,e016fd38,c0a8da7b,315,c59142ac,...) at ithread_loop+0x1b5 fork_exit(c072f5d0,c5913400,e016fd38) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xe016fd70, ebp = 0 --- db>
For bugs matching the following criteria: Status: In Progress Changed: (is less than) 2014-06-01 Reset to default assignee and clear in-progress tags. Mail being skipped
Keyword: crash – in lieu of summary line prefix: [panic] * bulk change for the keyword * summary lines may be edited manually (not in bulk). Keyword descriptions and search interface: <https://bugs.freebsd.org/bugzilla/describekeywords.cgi>