UML kernel panic
Hiya,
I have UML 2.6.4-1 on a stock SuSE 8.1 box (also tried on 8.1) running 2.4.19
The system boots fine an dnetworking comes up and works. The system starts sshd, apache etc however, when the system starts bind9 the UML kernel panics. This only happens when networking has not been brought up, with networking started named starts fine.
Kernel panic: Kernel mode fault at addr 0x4, ip 0xa0030643
<6>SysRq : Show Regs
EIP: 0023:[<a0030643>] CPU: 0 Not tainted ESP: 002b:a0b8b8f4 EFLAGS: 00010202
Not tainted
EAX: 00000000 EBX: a1e56498 ECX: 00000001 EDX: a1e56504
ESI: a1e56498 EDI: a1c53990 EBP: a0b8b90c DS: 002b ES: 002b
Call Trace: [<a018345e>] [<a001c45f>] [<a008b5f8>] [<a0045b56>] [<a0030643>] [<a0037945>] [<a00379c7>] [<a0030643>] [<a001b600>] [<a0030643>]
[<a001b76d>]
[<a0030643>] [<a001bce0>] [<a0205505>] [<a00194dd>] [<a001bace>]
[<a0030643>]
[<a001ba22>] [<a001f9ac>] [<a001fa25>] [<a001bce0>] [<a02053d8>]
[<a0030643>]
[<a0205505>] [<a0019743>] [<a0031b68>] [<a0205505>] [<a00194dd>]
[<a0205505>]
[<a001956b>] [<a0205505>] [<a0205505>] [<a00194dd>] [<a0205505>]
[<a0019648>]
[<a0094756>] [<a0094935>] [<a0086199>] [<a00864aa>] [<a007a51c>]
[<a006a4f2>]
[<a006b69f>] [<a007787d>] [<a0044224>] [<a0045080>] [<a001952d>]
[<a001947b>]
[<a001884a>] [<a001e678>] [<a001a28e>] [<a0018a81>] [<a001e801>]
[<a0016b5a>]
[<a001f9ac>] [<a001f9f5>] [<a001bce0>] [<a02053d8>]
The gdb bt is:
(gdb) bt
#0 panic (fmt=0xa0257de0 "Kernel mode fault at addr 0x%lx, ip 0x%lx")
at kernel/panic.c:58
#1 0xa001b76d in segv (address=4, ip=2684552771, is_write=0, is_user=0,
sc=0xa0932f88) at arch/um/kernel/trap_kern.c:151
#2 0xa001bace in segv_handler (sig=11, regs=0xa0932f88)
at arch/um/kernel/trap_user.c:67
#3 0xa001f9ac in sig_handler_common_tt (sig=11, sc_ptr=0x58)
at arch/um/kernel/tt/trap_user.c:37
#4 0xa001bce0 in sig_handler (sig=0, sc=
{gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43,__dsh = 0, edi = 2696380512, esi = 2716447384, ebp = 2714630412, esp = 2714630388, ebx = 2716447384, edx = 2716447492, ecx = 1, eax = 0, trapno = 14, err = 4, eip = 2684552771, cs = 35, __csh = 0, eflags = 66050, esp_at_signal = 2714630388, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 201392128, cr2 = 4})
at arch/um/kernel/trap_user.c:102
#5 <signal handler called>
#6 0xa0030643 in dump_fpu (regs=0x0, fpu=0xa1e9b298)
at arch/um/sys-i386/ptrace.c:329
#7 0xa0094756 in elf_dump_thread_status (signr=6, p=0xa0b78060,
thread_list=0xa1cdf9f4) at include/linux/elfcore.h:115
(gdb)
I can supply a disk image and kernel if required.
Thanks,
Leigh
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