Opened 17 years ago
Closed 17 years ago
#1986 closed bug (fixed)
ifconfig --delete throws a page fault
| Reported by: | korli | Owned by: | axeld |
|---|---|---|---|
| Priority: | normal | Milestone: | R1 |
| Component: | Network & Internet/Stack | Version: | R1/pre-alpha1 |
| Keywords: | Cc: | ||
| Blocked By: | Blocking: | ||
| Platform: | All |
Description
Qemu, ifconfig --delete /dev/net/etherpci/0
domain_interface_went_down(1, /dev/net/etherpci/0)
invalidate_routes(1, /dev/net/etherpci/0)
etherpci: close dev=90b43780
ether: still waiting for read/write to finish
etherpci: free dev=90b1ccc0
vm_soft_fault: va 0x0 not covered by area in address space
vm_page_fault: vm_soft_fault returned error 'Bad address' on fault at 0x0, ip 0x805579a6, write 0, user 0, thread 0x87
PANIC: vm_page_fault: unhandled page fault in kernel space at 0x0, ip 0x805579a6
Welcome to Kernel Debugging Land...
Running on CPU 0
kdebug> bt
stack trace for thread 135 "ifconfig"
kernel stack: 0x928ba000 to 0x928be000
user stack: 0x7efe7000 to 0x7ffe7000
frame caller <image>:function + offset
928bd58c (+ 52) 80084eab <kernel>:invoke_debugger_command + 0x00cf
928bd5c0 (+ 64) 80085c4c <kernel>:_ParseCommand__16ExpressionParserRi + 0x01f8
928bd600 (+ 48) 8008563e <kernel>:EvaluateCommand__16ExpressionParserPCcRi + 0x01de
928bd630 (+ 228) 80086d60 <kernel>:evaluate_debug_command + 0x0088
928bd714 (+ 64) 800839ee <kernel>:kernel_debugger_loop__Fv + 0x017a
928bd754 (+ 48) 80084699 <kernel>:kernel_debugger + 0x010d
928bd784 (+ 192) 80084581 <kernel>:panic + 0x0029
928bd844 (+ 64) 8005d51b <kernel>:vm_page_fault + 0x00ab
928bd884 (+ 64) 80091595 <kernel>:page_fault_exception + 0x00b1
928bd8c4 (+ 12) 80094c9d <kernel>:int_bottom + 0x001d (nearest)
iframe at 0x928bd8d0 (end = 0x928bd928)
eax 0x0 ebx 0x80563a98 ecx 0x1 edx 0x246
esi 0x909ac800 edi 0x90b26400 ebp 0x928bd964 esp 0x928bd904
eip 0x805579a6 eflags 0x293
vector: 0xe, error code: 0x0
928bd8d0 (+ 148) 805579a6 </boot/beos/system/add-ons/kernel/network/stack>:put_device_interface__FP20net_device_interface + 0x014a
928bd964 (+ 80) 80556a34 </boot/beos/system/add-ons/kernel/network/stack>:domain_interface_control__FP18net_domain_privatelP5ifreq + 0x0168
928bd9b4 (+ 288) 80555774 </boot/beos/system/add-ons/kernel/network/stack>:datalink_control__FP10net_domainlPvPUl + 0x0110
928bdad4 (+ 48) 80574a82 </boot/beos/system/add-ons/kernel/network/protocols/ipv4>:ipv4_control__FP12net_protocoliiPvPUl + 0x0042
928bdb04 (+ 64) 8058e50e </boot/beos/system/add-ons/kernel/network/protocols/udp>:udp_control__FP12net_protocoliiPvPUl + 0x0036
928bdb44 (+ 64) 8055a61f </boot/beos/system/add-ons/kernel/network/stack>:socket_control__FP10net_socketlPvUl + 0x0037
928bdb84 (+ 432) 80376509 </boot/beos/system/add-ons/kernel/drivers/dev/net/net_stack>:net_stack_control__FPvUlT0Ul + 0x07cd
928bdd34 (+ 336) 800411bb <kernel>:devfs_ioctl__FPvN20UlT0Ul + 0x023f
928bde84 (+ 64) 8004cc69 <kernel>:common_ioctl__FP15file_descriptorUlPvUl + 0x0049
928bdec4 (+ 48) 8004548f <kernel>:fd_ioctl__FbiUlPvUl + 0x005f
928bdef4 (+ 80) 8004614c <kernel>:_user_ioctl + 0x0044
928bdf44 (+ 100) 80094e12 <kernel>:pre_syscall_debug_done + 0x0002 (nearest)
iframe at 0x928bdfa8 (end = 0x928be000)
eax 0x71 ebx 0x2edec0 ecx 0x7ffe6e20 edx 0xffff0104
esi 0x3 edi 0x7ffef55f ebp 0x7ffe6e4c esp 0x928bdfdc
eip 0xffff0104 eflags 0x216
vector: 0x63, error code: 0x0
928bdfa8 (+ 0) ffff0104
7ffe6e4c (+ 240) 00201ce2 <_APP_>:delete_interface__FiPCc + 0x0046
7ffe6f3c (+ 64) 00202b27 <_APP_>:main + 0x0123
7ffe6f7c (+ 48) 00200df7 <_APP_>:_start + 0x005b
7ffe6fac (+ 48) 0010078e 1390:runtime_loader_seg0ro@0x00100000 + 0x78e
7ffe6fdc (+ 0) 7ffe6fec 1389:ifconfig_main_stack@0x7efe7000 + 0xffffec
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Seems fixed. I'll open another bug for a pagefault on network requests going after the deletion.