Date: Mon, 15 Jul 2002 16:47:33 -0400 (EDT) From: Andrew Gallatin <gallatin@cs.duke.edu> To: freebsd-current@freebsd.org Subject: panic: absolutely cannot call smp_ipi_shootdown with interrupts already disabled Message-ID: <15667.13541.978257.347017@grasshopper.cs.duke.edu>
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I was attempting to set a breakpoint; upon continuation, the kernel
panic'ed with:
gm0: <Myrinet PCI interface> mem 0xfb000000-0xfbffffff irq 11 at
device 1.0 on pci1
Debugger("here") # breakpoint I put in my module's load path
Stopped at Debugger+0x55: xchgl %ebx,in_Debugger.0
db> break generic_bzero
db> c
panic: absolutely cannot call smp_ipi_shootdown with interrupts
already disabled
cpuid = 1; lapic.id = 01000000
boot() called on cpu#1
syncing disks... panic: bremfree: bp 0xce67d2b4 not locked
cpuid = 1; lapic.id = 01000000
boot() called on cpu#1
Uptime: 2m9s
Dumping 511 MB
The stack looks like this (apologies for formatting errors).
(kgdb) where
#0 doadump () at ../../../kern/kern_shutdown.c:213
#1 0xc01df7b6 in boot (howto=260) at
../../../kern/kern_shutdown.c:345
#2 0xc01dfa44 in panic () at ../../../kern/kern_shutdown.c:491
#3 0xc021fa77 in bremfree (bp=0xce67d2b4) at
../../../kern/vfs_bio.c:633
#4 0xc0221498 in vfs_bio_awrite (bp=0x3) at
../../../kern/vfs_bio.c:1627
#5 0xc01afde5 in spec_fsync (ap=0xda0e885c)
at ../../../fs/specfs/spec_vnops.c:403
#6 0xc01af908 in spec_vnoperate (ap=0x0)
at ../../../fs/specfs/spec_vnops.c:121
#7 0xc02a1aca in ffs_sync (mp=0xc157bc00, waitfor=2, cred=0xc1571f00,
td=0xc03669e0) at vnode_if.h:463
#8 0xc02310f8 in sync (td=0xc03669e0, uap=0x0)
at ../../../kern/vfs_syscalls.c:127
#9 0xc01df3cb in boot (howto=256) at
../../../kern/kern_shutdown.c:254
#10 0xc01dfa44 in panic () at ../../../kern/kern_shutdown.c:491
#11 0xc02f33db in smp_tlb_shootdown (vector=0, addr1=0, addr2=0)
at ../../../i386/i386/mp_machdep.c:2260
#12 0xc02f361b in smp_invltlb () at
../../../i386/i386/mp_machdep.c:2366
#13 0xc02f574d in pmap_invalidate_all (pmap=0x1)
at ../../../i386/i386/pmap.c:677
#14 0xc02e3123 in db_write_bytes (addr=3224341392, size=1,
data=0xda0e89ac "\2158 \2158\211\016 ")
at ../../../i386/i386/db_interface.c:279
---Type <return> to continue, or q <return> to quit---
#15 0xc0142121 in db_put_value (addr=0, size=0, value=0)
at ../../../ddb/db_access.c:98
#16 0xc01423a7 in db_set_breakpoints () at ../../../ddb/db_break.c:191
#17 0xc0144dc4 in db_restart_at_pc (watchpt=0) at
../../../ddb/db_run.c:209
#18 0xc01456b6 in db_trap (type=3, code=0) at
../../../ddb/db_trap.c:75
#19 0xc02e2edd in kdb_trap (type=3, code=0, regs=0xda0e8a8c)
at ../../../i386/i386/db_interface.c:161
#20 0xc02fa427 in trap (frame=
{tf_fs = -1051262952, tf_es = -1001979888, tf_ds = -1051262960,
tf_edi = -1051203200, tf_esi = -1001936896, tf_ebp = -636581160,
tf_isp = -636581192, tf_ebx = 0, tf_edx = 0, tf_ecx = 1, tf_eax = 17,
tf_trapno = 3, tf_err = 0, tf_eip = -1070714411, tf_cs = 8, tf_eflags
= 646, tf_esp = -1070279997, tf_ss = -1001622092}) at
../../../i386/i386/trap.c:604
#21 0xc02e4678 in calltrap () at {standard input}:99
#22 0xc44bb7e8 in ?? ()
#23 0xc44bfefb in ?? ()
#24 0xc44bf864 in ?? ()
#25 0xc44bb11a in ?? ()
#26 0xc01f10bf in device_probe_and_attach (dev=0x0) at device_if.h:39
#27 0xc01f1e1e in bus_generic_driver_added (dev=0xc157ea80,
driver=0xc44f2128)
at ../../../kern/subr_bus.c:1449
#28 0xc01efd05 in devclass_add_driver (dc=0xc156dc80,
driver=0xc44f2128)
at bus_if.h:71
#29 0xc01f2e45 in driver_module_handler (mod=0xc4262940, what=0,
arg=0xc44f2144) at ../../../kern/subr_bus.c:1810
#30 0xc01d4ec1 in module_register_init (arg=0xc44f215c)
at ../../../kern/kern_module.c:107
#31 0xc01cf670 in linker_file_sysinit (lf=0x0)
at ../../../kern/kern_linker.c:192
#32 0xc01cf936 in linker_load_file (filename=0xc036ce90 " +3@tf_esp =-1077938260, tf_ss = 47})
at ../../../i386/i386/trap.c:1049
#36 0xc02e46ad in syscall_with_err_pushed () at {standard input}:129
Cheers,
Drew
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