(kgdb) backtrace #0 doadump () at pcpu.h:196 #1 0xc0790ea7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418 #2 0xc0791179 in panic (fmt=Variable "fmt" is not available. ) at /usr/src/sys/kern/kern_shutdown.c:574 #3 0xc0aa338c in trap_fatal (frame=0xe7e419e4, eva=851974) at /usr/src/sys/i386/i386/trap.c:939 #4 0xc0aa3610 in trap_pfault (frame=0xe7e419e4, usermode=0, eva=851974) at /usr/src/sys/i386/i386/trap.c:852 #5 0xc0aa3fcc in trap (frame=0xe7e419e4) at /usr/src/sys/i386/i386/trap.c:530 #6 0xc0a89e3b in calltrap () at /usr/src/sys/i386/i386/exception.s:159 #7 0xc0737c89 in g_io_request (bp=0xc6005528, cp=0xcac4cd00) at /usr/src/sys/geom/geom_io.c:364 #8 0xc073c286 in g_vfs_strategy (bo=0xc8dbeec4, bp=0xd91e1c14) at /usr/src/sys/geom/geom_vfs.c:107 #9 0xc074cfd0 in cd9660_strategy (ap=0xe7e41aa8) at /usr/src/sys/fs/cd9660/cd9660_vnops.c:758 #10 0xc0ab90dd in VOP_STRATEGY_APV (vop=0xc0bd6100, a=0xe7e41aa8) at vnode_if.c:1771 #11 0xc07f5b6e in bufstrategy (bo=0xc93582e8, bp=0xd91e1c14) at vnode_if.h:935 #12 0xc07fca7a in breadn (vp=0xc9358228, blkno=0, size=2048, rablkno=0x0, rabsize=0x0, cnt=0, cred=0x0, bpp=0xe7e41b3c) at buf.h:429 #13 0xc07fcb2c in bread (vp=0xc9358228, blkno=Unhandled dwarf expression opcode 0x93 ) at /usr/src/sys/kern/vfs_bio.c:734 #14 0xc0748ee0 in cd9660_blkatoff (vp=0xc9358228, offset=0, res=0x0, bpp=0xe7e41bc0) at /usr/src/sys/fs/cd9660/cd9660_lookup.c:407 #15 0xc074d82d in cd9660_readdir (ap=0xe7e41c00) at /usr/src/sys/fs/cd9660/cd9660_vnops.c:516 #16 0xc0ab8352 in VOP_READDIR_APV (vop=0xc0bd6100, a=0xe7e41c00) at vnode_if.c:1407 #17 0xc081ab40 in kern_getdirentries (td=0xc6525230, fd=5, buf=0x2832c000
, count=4096, basep=0xe7e41c74) at vnode_if.h:747 ---Type to continue, or q to quit--- #18 0xc081ad51 in getdirentries (td=0xc6525230, uap=0xe7e41cfc) at /usr/src/sys/kern/vfs_syscalls.c:3767 #19 0xc0aa3965 in syscall (frame=0xe7e41d38) at /usr/src/sys/i386/i386/trap.c:1090 #20 0xc0a89ea0 in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:255 #21 0x00000033 in ?? () ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (kgdb) list 255 call syscall 256 add $4, %esp 257 MEXITCOUNT 258 jmp doreti 259 260 ENTRY(fork_trampoline) 261 pushl %esp /* trapframe pointer */ 262 pushl %ebx /* arg1 */ 263 pushl %esi /* function */ 264 call fork_exit ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (kgdb) up #1 0xc0790ea7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418 (kgdb) list - 408 /* 409 * Ok, now do things that assume all filesystem activity has 410 * been completed. 411 */ 412 EVENTHANDLER_INVOKE(shutdown_post_sync, howto); 413 414 /* XXX This doesn't disable interrupts any more. Reconsider? */ 415 splhigh(); 416 417 if ((howto & (RB_HALT|RB_DUMP)) == RB_DUMP && !cold && !dumping) 418 doadump(); (kgdb) list 413 414 /* XXX This doesn't disable interrupts any more. Reconsider? */ 415 splhigh(); 416 417 if ((howto & (RB_HALT|RB_DUMP)) == RB_DUMP && !cold && !dumping) 418 doadump(); 419 420 /* Now that we're going to really halt the system... */ 421 EVENTHANDLER_INVOKE(shutdown_final, howto); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (kgdb) up #2 0xc0791179 in panic (fmt=Variable "fmt" is not available. ) at /usr/src/sys/kern/kern_shutdown.c:574 574 boot(bootopt); (kgdb) list - 559 /* See if the user aborted the panic, in which case we continue. */ 560 if (panicstr == NULL) { 561 #ifdef SMP 562 atomic_store_rel_int(&panic_cpu, NOCPU); 563 #endif 564 return; 565 } 566 #endif 567 #endif 568 /*thread_lock(td); */ (kgdb) list 569 td->td_flags |= TDF_INPANIC; 570 /* thread_unlock(td); */ 571 if (!sync_on_panic) 572 bootopt |= RB_NOSYNC; 573 critical_exit(); 574 boot(bootopt); 575 } 576 577 /* 578 * Support for poweroff delay. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (kgdb) up #3 0xc0aa338c in trap_fatal (frame=0xe7e419e4, eva=851974) at /usr/src/sys/i386/i386/trap.c:939 939 panic("%s", trap_msg[type]); (kgdb) l - 929 frame->tf_err = eva; /* smuggle fault address to ddb */ 930 if (kdb_trap(type, 0, frame)) { 931 frame->tf_err = code; /* restore error code */ 932 return; 933 } 934 frame->tf_err = code; /* restore error code */ 935 } 936 #endif 937 printf("trap number = %d\n", type); 938 if (type <= MAX_TRAP_MSG) (kgdb) l 939 panic("%s", trap_msg[type]); 940 else 941 panic("unknown/reserved trap"); 942 } 943 944 /* 945 * Double fault handler. Called when a fault occurs while writing 946 * a frame for a trap/exception onto the stack. This usually occurs 947 * when the stack overflows (such is the case with infinite recursion, 948 * for example). ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (kgdb) up #4 0xc0aa3610 in trap_pfault (frame=0xe7e419e4, usermode=0, eva=851974) at /usr/src/sys/i386/i386/trap.c:852 852 trap_fatal(frame, eva); (kgdb) l - 842 } 843 if (rv == KERN_SUCCESS) 844 return (0); 845 nogo: 846 if (!usermode) { 847 if (td->td_intr_nesting_level == 0 && 848 PCPU_GET(curpcb)->pcb_onfault != NULL) { 849 frame->tf_eip = (int)PCPU_GET(curpcb)->pcb_onfault; 850 return (0); 851 } (kgdb) l 852 trap_fatal(frame, eva); 853 return (-1); 854 } 855 856 return((rv == KERN_PROTECTION_FAILURE) ? SIGBUS : SIGSEGV); 857 } 858 859 static void 860 trap_fatal(frame, eva) 861 struct trapframe *frame; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (kgdb) up #5 0xc0aa3fcc in trap (frame=0xe7e419e4) at /usr/src/sys/i386/i386/trap.c:530 530 (void) trap_pfault(frame, FALSE, eva); (kgdb) l - 520 i = SIGFPE; 521 break; 522 } 523 } else { 524 /* kernel trap */ 525 526 KASSERT(cold || td->td_ucred != NULL, 527 ("kernel trap doesn't have ucred")); 528 switch (type) { 529 case T_PAGEFLT: /* page fault */ (kgdb) l 530 (void) trap_pfault(frame, FALSE, eva); 531 goto out; 532 533 case T_DNA: 534 #ifdef DEV_NPX 535 /* 536 * The kernel is apparently using npx for copying. 537 * XXX this should be fatal unless the kernel has 538 * registered such use. 539 */ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (kgdb) up #6 0xc0a89e3b in calltrap () at /usr/src/sys/i386/i386/exception.s:159 159 call trap (kgdb) l - 149 alltraps: 150 pushal 151 pushl %ds 152 pushl %es 153 pushl %fs 154 alltraps_with_regs_pushed: 155 SET_KERNEL_SREGS 156 FAKE_MCOUNT(TF_EIP(%esp)) 157 calltrap: 158 pushl %esp (kgdb) l 159 call trap 160 add $4, %esp 161 162 /* 163 * Return via doreti to handle ASTs. 164 */ 165 MEXITCOUNT 166 jmp doreti 167 168 /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (kgdb) up #7 0xc0737c89 in g_io_request (bp=0xc6005528, cp=0xcac4cd00) at /usr/src/sys/geom/geom_io.c:364 364 g_trace(G_T_BIO, "bio_request(%p) from %p(%s) to %p(%s) cmd %d", Current language: auto; currently c (kgdb) l - 354 } 355 if (bp->bio_cmd & (BIO_READ|BIO_WRITE|BIO_DELETE)) { 356 KASSERT(bp->bio_offset % cp->provider->sectorsize == 0, 357 ("wrong offset %jd for sectorsize %u", 358 bp->bio_offset, cp->provider->sectorsize)); 359 KASSERT(bp->bio_length % cp->provider->sectorsize == 0, 360 ("wrong length %jd for sectorsize %u", 361 bp->bio_length, cp->provider->sectorsize)); 362 } 363 (kgdb) l 364 g_trace(G_T_BIO, "bio_request(%p) from %p(%s) to %p(%s) cmd %d", 365 bp, cp, cp->geom->name, pp, pp->name, bp->bio_cmd); 366 367 bp->bio_from = cp; 368 bp->bio_to = pp; 369 bp->bio_error = 0; 370 bp->bio_completed = 0; 371 372 KASSERT(!(bp->bio_flags & BIO_ONQUEUE), 373 ("Bio already on queue bp=%p", bp)); (kgdb) p cp->geom->name $1 = 0xc0b3c773 "vfslock" (kgdb) p pp->name Cannot access memory at address 0xd0006 (kgdb) p bp->bio_cmd $2 = 1 '\001' (kgdb) info locals pp = (struct g_provider *) 0xd0006 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (kgdb) up #8 0xc073c286 in g_vfs_strategy (bo=0xc8dbeec4, bp=0xd91e1c14) at /usr/src/sys/geom/geom_vfs.c:107 107 g_io_request(bip, cp); (kgdb) l - 97 cp = bo->bo_private; 98 G_VALID_CONSUMER(cp); 99 100 bip = g_alloc_bio(); 101 bip->bio_cmd = bp->b_iocmd; 102 bip->bio_offset = bp->b_iooffset; 103 bip->bio_data = bp->b_data; 104 bip->bio_done = g_vfs_done; 105 bip->bio_caller2 = bp; 106 bip->bio_length = bp->b_bcount; (kgdb) l 107 g_io_request(bip, cp); 108 } 109 110 static void 111 g_vfs_orphan(struct g_consumer *cp) 112 { 113 114 /* 115 * Don't do anything here yet. 116 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (kgdb) up #9 0xc074cfd0 in cd9660_strategy (ap=0xe7e41aa8) at /usr/src/sys/fs/cd9660/cd9660_vnops.c:758 758 BO_STRATEGY(bo, bp); (kgdb) l - 748 (ip->i_mnt->im_bshift - DEV_BSHIFT); 749 if ((long)bp->b_blkno == -1) /* XXX: cut&paste junk ? */ 750 clrbuf(bp); 751 } 752 if ((long)bp->b_blkno == -1) { /* XXX: cut&paste junk ? */ 753 bufdone(bp); 754 return (0); 755 } 756 bp->b_iooffset = dbtob(bp->b_blkno); 757 bo = ip->i_mnt->im_bo; (kgdb) l 758 BO_STRATEGY(bo, bp); 759 return (0); 760 } 761 762 /* 763 * Return POSIX pathconf information applicable to cd9660 filesystems. 764 */ 765 static int 766 cd9660_pathconf(ap) 767 struct vop_pathconf_args /* {