Bug 23697

panic at _pl_download_mhroute+0x24. power cycling tnt102 with ipaction-3.0-001219
intalled caused this panic. intermittent, not easy to reproduce it.  


Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x20
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xf01d8fcb
stack pointer           = 0x10:0xefbffbf4
frame pointer           = 0x10:0xefbffda4
code segment            = base rx0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 37 (urouter)
interrupt mask          = 
panic: page fault
Stopped at      _panic+0x6b:    pushl   %esi
db> trace
_panic(f0273f11,f39d3000,0,f3a51e00,20) at _panic+0x6b
_trap_fatal(efbffbb8,0,f39d3000,c,f3a51e00) at _trap_fatal+0x2db
_trap_pfault(efbffbb8,0,30,0,f3a94a0c) at _trap_pfault+0x11c
_trap(10,f3a60010,f3a94a0c,0,efbffda4) at _trap+0x2ab
calltrap() at calltrap+0x15
--- trap 0xc, eip = 0xf01d8fcb, esp = 0xefbffbf4, ebp = 0xefbffda4 ---
_pl_download_mhroute(f3a6b900,1,ffffffff) at _pl_download_mhroute+0x247
_pl_install_route(f3a6b900,ffffffff,2) at _pl_install_route+0xf8
_route_output(f3349900,f3a47900,f334e860,c0020000,f3a47900) at _route_output+0x999
_raw_usrreq(f3a47900,9,f3349900,0,0) at _raw_usrreq+0x13a
gcc2_compiled.(f3a47900,9,f3349900,0,0) at gcc2_compiled.+0xaa
_old_send(f3a47900,0,f3349900,0,0) at _old_send+0x35
_sosend(f3a47900,0,efbfff34,f3349900,0) at _sosend+0x5f6
_soo_write(f3a499c0,efbfff34,f1f48c00,f0283ee0,f39d3000) at _soo_write+0x19
_write(f39d3000,efbfff94,efbfff84,efbfd6b8,8b9348) at _write+0x97
_syscall(580027,efbf0027,0,8b9348,efbfd6a8) at _syscall+0x183
_Xsyscall() at _Xsyscall+0x35
--- syscall 0x4, eip = 0x5356b5, esp = 0xefbfd68c, ebp = 0xefbfd6a8 ---
db> continue
done
POS10/2 (11): PPP(LCP), Action(This Layer Down)
POS10/2 (12): PPP(IPCP), Action(This Layer Down)
POS10/2 (13): PPP(OSICP), Action(This Layer Down)
POS10/2 (14): PPP(MPLSCP), Action(This Layer Down)
Automatic reboot in 15 seconds - press a key on the console to abort
Rebooting...