login: kernel: protection fault trap, code=0 Stopped at m_tag_delete_chain+0x25: movq 0(%r15),%rax ddb> ddb> set $lines = 0 ddb> show panic the kernel did not panic ddb> trace m_tag_delete_chain(f488a45fdbe2d62d) at m_tag_delete_chain+0x25 m_free(ffffff0072af1a00) at m_free+0xfd m_freem(16) at m_freem+0x2d soreceive(0,ffffff006e701c08,ffff800021154820,14b,ffff8000211548b0,ffff8000211547c0) at soreceive+0x1131 recvit(ffff8000211548e0,ffff8000211549e8,ffff8000211549d0,ffff8000ffffce18,0) at recvit+0x28c sys_recvmsg(ffff800021154a70,ffff8000ffffce18,ffff8000210a5fd8) at sys_recvmsg+0x120 syscall(0) at syscall+0x3e4 Xsyscall(6,0,ffffffffffffffbf,0,3,ec4720af010) at Xsyscall+0x128 end of kernel end trace frame: 0xec6f7b2c5b0, count: -8 ddb> show registers rdi 0xffffff0072af1a00 rsi 0x42 rbp 0xffff8000211546b0 rbx 0 rdx 0xffffffffffffbead rcx 0xffffffff81e8e3b0 mbstat_boot_boot_cpumem rax 0 r8 0 r9 0xffff8000ffffce18 r10 0xf488a45fdbe2d62d r11 0xffffffff816a34a0 pool_lock_mtx_leave r12 0xdeaf __ALIGN_SIZE+0xceaf r13 0xffffff006e701c08 r14 0xffffff0072af1a00 r15 0xdeafbeaddeafbead rip 0xffffffff817c0a25 m_tag_delete_chain+0x25 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff8000211546a0 ss 0x10 m_tag_delete_chain+0x25: movq 0(%r15),%rax ddb>