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Hello, On Mon, Oct 21, 2002 at 08:40:16PM +0400, kuznet@ms2.inr.ac.ru wrote: > > Try better to enable slab poisoning in slab.h. If it that thing > which I think of, it would provoke crash. > > Alexey > I have got a new crash on the same box with CONFIG_DEBUG_SLAB=y (reminder: Kernel 2.4.19) Unable to handle kernel paging request at virtual address 5a5a5a5e EIP : 0010:[<c02318a9>] <ip_route_input_slow+33> EAX : 00000000 EBX : 5a5a5a5a ECX : 9c515bec EDX : 5a5a5a5a ESI : ccb5b542 EDI : d71a10ac EBP : c1aae690 ESP : c02f3e44 Process Swapper (pid: 0, stackpage = c02f3000) Stack: 5a5a5a ccb5b542 d71a10ac c1aae690 (sorry, first stack word was written down incorrectly by operator, one byte lost) Call Trace: [<c010980d>] <get_irq_list+137> [<c0109a71>] <do_IRQ+133> [<c02321ca>] <ip_route_input+338> [<c02342e4>] <ip_rcv_finish+40> (I find this stack trace strange. Once again I haven't written this down myself so I can't be sure it's 100% accurate) Code : ff 42 04 b8 54 24 24 89 54 24 28 c7 44 24 20 00 00 00 00 c7 Still the same exact place in ip_route_input_slow: (gdb) x/i 0xc02318a9 0xc02318a9 <ip_route_input_slow+33>: incl 0x4(%edx) 0xc02318ac <ip_route_input_slow+36>: mov 0x24(%esp,1),%edx 0xc02318b0 <ip_route_input_slow+40>: mov %edx,0x28(%esp,1) 0xc02318b4 <ip_route_input_slow+44>: movl $0x0,0x20(%esp,1) 0xc02318bc <ip_route_input_slow+52>: movl $0x0,0x38(%esp,1) 0xc02318c4 <ip_route_input_slow+60>: movl $0x0,0x34(%esp,1) It looks to me that the value in DX is "poisoned" data isn't it? I assume that the kernel is trying to use dynamic memory that has been released already, right? What's next in tracing this one down? Thanks for any hint, _Alain_ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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