[uml-devel] Kernel mode fault 2.4.26-um1

[uml-devel] Kernel mode fault 2.4.26-um1

[Bernard Johnson]

I'm getting this crash on 2.4.26-um1

Breakpoint 1, panic (
fmt=0xa01d8b00 "Kernel mode fault at addr 0x%lx, ip 0x%lx, ip 0x%lx") at
panic.c:60
60 bust_spinlocks(1);
(gdb) bt
#0 panic (fmt=0xa01d8b00 "Kernel mode fault at addr 0x%lx, ip 0x%lx")
at panic.c:60
#1 0xa00d1019 in segv (address=8, ip=2685769919, is_write=0, is_user=0,
sc=0xa4a44274) at trap_kern.c:149
#2 0xa00d1416 in segv_handler (sig=11, regs=0xa4a44274) at trap_user.c:67
#3 0xa00d4b3c in sig_handler_common_tt (sig=11, sc_ptr=0xa4a47d28)
at trap_user.c:43
#4 0xa00d14f3 in sig_handler (sig=0, sc=
{gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh =
0, edi = 2762227712, esi = 2762235236, ebp = 2762235212, esp = 2762235188,
ebx = 0, edx = 4294901759, ecx = 2685202592, eax = 4, trapno = 14, err = 4,
eip = 2685769919, cs = 35, __csh = 0, eflags = 66182, esp_at_signal =
2762235188, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 134285824, cr2 =
8}) at trap_user.c:101
#5 <signal handler called>
#6 rwsem_down_failed_common (sem=0x0, waiter=0xa4a45d64, adjustment=-65537)
at list.h:40
Previous frame inner to this frame (corrupt stack?)





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[uml-devel] Re: Kernel mode fault 2.4.26-um1

[Bernard Johnson]

I was asked in email for more information... Here is additional
information...

I'm using ttmode (have been unable to integrate the skas3 patch into a
Fedora Core kernel RPM).  The host system is a Fedora Core 1 system, fully
updated, standard kernel.

The crash is completely reproducible, when I start a particular application
(behemoth ColdFusion MX 6.1).  The crash happens when the guest OS is either
Fedora Core 1 or RedHat 8, so I don't believe it's related to the guest OS.

I have a kernel linux-2.4.22-um6+fedoraseg
(http://toast.debian.net/~may/umlproject/unpackaged/fedoraseg.patch) that
will run this application under guest Fedora Core 1, although, it seems to
not run under RedHat 8 guest OS.



"Bernard Johnson" <bjohnson-dated-1082612068.17fb8c@symetrix.com> wrote in
message news:c840cm$o89$1@sea.gmane.org...
> I'm getting this crash on 2.4.26-um1
>
> Breakpoint 1, panic (
> fmt=0xa01d8b00 "Kernel mode fault at addr 0x%lx, ip 0x%lx, ip 0x%lx") at
> panic.c:60
> 60 bust_spinlocks(1);
> (gdb) bt
> #0 panic (fmt=0xa01d8b00 "Kernel mode fault at addr 0x%lx, ip 0x%lx")
> at panic.c:60
> #1 0xa00d1019 in segv (address=8, ip=2685769919, is_write=0, is_user=0,
> sc=0xa4a44274) at trap_kern.c:149
> #2 0xa00d1416 in segv_handler (sig=11, regs=0xa4a44274) at trap_user.c:67
> #3 0xa00d4b3c in sig_handler_common_tt (sig=11, sc_ptr=0xa4a47d28)
> at trap_user.c:43
> #4 0xa00d14f3 in sig_handler (sig=0, sc=
> {gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh
=
> 0, edi = 2762227712, esi = 2762235236, ebp = 2762235212, esp = 2762235188,
> ebx = 0, edx = 4294901759, ecx = 2685202592, eax = 4, trapno = 14, err =
4,
> eip = 2685769919, cs = 35, __csh = 0, eflags = 66182, esp_at_signal =
> 2762235188, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 134285824, cr2 =
> 8}) at trap_user.c:101
> #5 <signal handler called>
> #6 rwsem_down_failed_common (sem=0x0, waiter=0xa4a45d64,
adjustment=-65537)
> at list.h:40
> Previous frame inner to this frame (corrupt stack?)
>
>
>
>
>
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