login: panic: pr_find_pagehead: mbufpl: incorrect page Stopped at db_enter+0xa: popq %rbp TID PID UID PRFLAGS PFLAGS CPU COMMAND db_enter() at db_enter+0xa panic() at panic+0x147 pool_do_put(ffffff0006000100,ffffffff81e99280) at pool_do_put+0x339 pool_put(0,ffffff0006000100) at pool_put+0x37 m_free(ffffff0006000100) at m_free+0x12c mq_purge(ffff800002d01580) at mq_purge+0x6d switchclose(ffff800014aea730,ffff800014ae8ea8,ffffffff81245447,ffff800014ae8e50) at switchclose+0x77 spec_close(ffffffff81e300a8) at spec_close+0x271 VOP_CLOSE(ffffff00358aa1a0,ffff800014aea730,ffffff003f7c7c60,3) at VOP_CLOSE+0x5f vn_closefile(ffff800014aea730,ffffff0030648808) at vn_closefile+0xfc fdrop(ffffff0030648808,ffff800014aea730) at fdrop+0xa4 closef(ffff800014aea730,ffffff00365ef850) at closef+0xd5 fdfree(ffff8000149fa970) at fdfree+0x98 exit1(ffff800014ae9170,ffff800014aea730,ffff8000149fa970) at exit1+0x22f end trace frame: 0xffff800014ae9090, count: 0 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs.