[uml-devel] 2.4.6-um7 crash in swap

[James S. <mi...@st...>]

Hi

i am getting a panic at boot when the swap on is done

#0  panic (fmt=0xa01359a0 "Kernel mode fault at addr 0x%lx, ip 0x%lx") at
	panic.c:54
#1  0xa00ae7c1 in segv (address=2726297600, ip=2684514511, is_write=2,
	is_user=0) at trap_kern.c:70
#2  0xa00af4e3 in segv_handler (sig=11, sc=0xa1ddfbd0, usermode=0) at
	trap_user.c:305
#3  0xa00af619 in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0,
	__fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 2726297600, esi =
	2715504640, ebp = 2715680528, esp = 2715680424, ebx = 2685906944, edx =
	119772, ecx = 29943, eax = 0, trapno = 14, err = 6, eip = 2684514511, cs =
	35, __csh = 0, eflags = 66066, esp_at_signal = 2715680424, ss = 43, __ssh
	= 0, fpstate = 0x0, oldmask = 0, cr2 = 2726297600}) at trap_user.c:350
#4  <signal handler called>
#5  0xa00270cf in sys_swapon (specialfile=0x804a940 "/dev/ubd/1",
	swap_flags=0) at
	/home/mistral/dev/kernel/linux-2.4.9-um7/include/asm/arch/string.h:411
#6  0xa1e20720 in ?? ()
#7  0xa00ad550 in execute_syscall (regs={regs = {134523200, 0, 134523200,
	2684354232, 0, 4294967295, 4294967258, 43, 43, 0, 0, 87, 1074742929, 35,
	582, 2684352652, 43}}) at syscall_kern.c:333
#8  0xa00ad68b in syscall_handler (unused=0x0) at syscall_user.c:82

(gdb) info symbol ip
sys_swapon + 1327 in section .text

(gdb) info locals
p = (struct swap_info_struct *) 0xa017b000
nd = {dentry = 0xa1e20720, mnt = 0xa08762e0, last = {name = 0xa1e20720
"\001", len = 2715944736, hash = 2715944736}, flags = 9, last_type = 1}
swap_inode = (struct inode *) 0xa017b000
type = 0
i = -1610452785
j = -1568669696
prev = -1568669696
error = 0
least_priority = -1
swap_header = (union swap_header *) 0xa1db5000
swap_header_version = -1610452785
nr_good_pages = 0
swapfilesize = 59887
bdev = (struct block_device *) 0xa08aa160



	James

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