Recently I see an crash dump with NOTICE: SAM-QFS: samfs1: Initiated mount filesystem
panic[cpu3]/thread=fffffe0019e3dc20: BAD TRAP: type=7 (#nm Device not available) rp=fffffe0019e3d780 addr=0 looking on the stack of the faulted thread fffffe0019e3d690 unix:die+d3 () fffffe0019e3d770 unix:trap+855 () fffffe0019e3d780 unix:cmntrap+e9 () fffffe0019e3da10 samfs:sam_map_block+6f () fffffe0019e3dc00 samfs:sam_block_thread+1574 () fffffe0019e3dc10 unix:thread_start+b () and the the disassembled function sam_map_block > sam_map_block::dis sam_map_block: pushq %rbp sam_map_block+1: movl %ecx,%eax sam_map_block+3: shrl $0xc,%ecx sam_map_block+6: andb $0xef,%ah sam_map_block+9: andl $0x1,%ecx sam_map_block+0xc: xorl $0x1,%ecx sam_map_block+0xf: movq %rsp,%rbp sam_map_block+0x12: pushq %r15 sam_map_block+0x14: pushq %r14 sam_map_block+0x16: movq %rsi,%r14 sam_map_block+0x19: pushq %r13 sam_map_block+0x1b: movq %r8,%r13 sam_map_block+0x1e: pushq %r12 sam_map_block+0x20: pushq %rbx sam_map_block+0x21: subq $0x178,%rsp sam_map_block+0x28: movl %eax,0xfffffffffffffecc(%rbp) sam_map_block+0x2e: leaq (%rsi,%rdx),%rax sam_map_block+0x32: movq 0x3e8(%rdi),%r12 sam_map_block+0x39: movq %rdx,0xfffffffffffffec0(%rbp) sam_map_block+0x40: movq %r9,0xfffffffffffffea8(%rbp) sam_map_block+0x47: movb %cl,0xfffffffffffffecb(%rbp) sam_map_block+0x4d: movq %rax,0xfffffffffffffe98(%rbp) sam_map_block+0x54: movq %r12,0xfffffffffffffe70(%rbp) sam_map_block+0x5b: movq %rdi,%r12 sam_map_block+0x5e: nop sam_map_block+0x60: testq %r13,%r13 sam_map_block+0x63: je +0x18 <sam_map_block+0x7d> sam_map_block+0x65: xorl %esi,%esi sam_map_block+0x67: movq $0x0,0x30(%r13) sam_map_block+0x6f: pxor %xmm0,%xmm0 I build this kernel module with GCC14. I have no clear understanding what "Bad trap: type=7 (#nm Device not available) " means. Looking on the assembler instruction "pxor %xmm0,%xmm0" seems that here special multimedia registers are used. Is it possible the show the contents of this registers in mdb? What does "Bad trap: type=7" means? ------------------------------------------ illumos: illumos-discuss Permalink: https://illumos.topicbox.com/groups/discuss/Te2d5885af4d3b9f6-M732651bbffbab2e45832feb0 Delivery options: https://illumos.topicbox.com/groups/discuss/subscription
