Hi,
I encountered a panic in linux-2.4.26um, and it happends almost all the
time. I will appreciate it if any one could help as this is really a trouble
for us.
Here are the stacks printed by gdb,
stack1:
==================
#0 panic (fmt=0xa01de769 "kernel BUG at %s:%d!\n") at panic.c:60
#1 0xa000daba in schedule () at sched.h:770
#2 0xa00e69ee in __down (sem=0xa0228b9c) at semaphore.c:80
#3 0xa00e6b64 in __down_failed () at proc_fs.h:150
#4 0xa0228b9c in vts ()
==================
stack2:
==================
#0 0xa019af4d in read () at proc_fs.h:154
#1 0xa3274000 in ?? ()
#2 0xa00e7d13 in file_io (fd=76, buf=0xa329bc6f, len=1,
io_proc=0xa019af30 <read>, copy_user_proc=0xa00da418 <copy_from_user_proc>)
at file.c:491
#3 0xa00e7d8a in os_read_file (fd=76, buf=0xa329bc6f, len=1) at file.c:507
#4 0xa00dfe71 in _switch_to_tt (prev=0xa3298000, next=0xa3274000)
at process_kern.c:71
#5 0xa000da6a in schedule () at sched.c:695
#6 0xa00d9f75 in interrupt_end () at process_kern.c:142
#7 0xa00e2041 in sig_handler_common_tt (sig=12, sc_ptr=0xa329bd28)
at trap_user.c:46
#8 0xa00de7f3 in sig_handler (sig=1, sc=
{gs = 7, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh
= 0, edi = 1073831144, esi = 3, ebp = 2684349128, esp = 2684349036, ebx =
2684349152, edx = 0, ecx = 0, eax = 4294967294, trapno = 14, err = 4, eip =
1073812260, cs = 35, __csh = 0, eflags = 2097798, esp_at_signal = 2684349036,
ss = 43, __ssh = 0, fpstate = 0xa329bd80, oldmask = 134283264, cr2 =
1073771440})
at trap_user.c:109
#9 <signal handler called>
#10 0x40011324 in ?? ()
Previous frame inner to this frame (corrupt stack?)
=================
Only one thread's stack is like stack 2, while all the other threads'
stacks are like stack 1.
Regards,
Wu Haibao
===============================
Tel:65641776
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