PANIC: Invalid concurrent access to page 0x83e81284 (start), currently accessed by: 10

[mvfranz]

Hi,

I am using hrev35770 trying to build gcc and the kernel had a panic. I have included the back trace.

PANIC: Invalid concurrent access to page 0x83e81284 (start), currently accessed by: 10 Welcome to Kernel Debugging Land... Thread 137900 "sh" running on CPU 1 kdebug> bt stack trace for thread 137900 "sh"

kernel stack: 0x812eb000 to 0x812ef000

user stack: 0x7efed000 to 0x7ffed000

frame caller <image>:function + offset

0 812eeb70 (+ 32) 8006ec29 <kernel_x86> invoke_command_trampoline(void*: [34m0x812eebf0[0m) + 0x0015 1 812eeb90 (+ 12) 800e20b8 <kernel_x86>:arch_debug_call_with_fault_handler + 0x001b 2 812eeb9c (+ 48) 8006cad6 <kernel_x86>:debug_call_with_fault_handler + 0x0051 3 812eebcc (+ 64) 8006efa6 <kernel_x86>:invoke_debugger_command + 0x00bb 4 812eec0c (+ 48) 8006f0c3 <kernel_x86> invoke_pipe_segment(debugger_command_pipe*: [34m0x801355a2[0m, int32: [34m0[0m, char*: NULL) + 0x0083 5 812eec3c (+ 32) 8006f18b <kernel_x86>:invoke_debugger_command_pipe + 0x008b 6 812eec5c (+ 128) 80072f16 <kernel_x86> ExpressionParser<[32m0x812eed2c[0m>::_ParseCommandPipe(int&: [34m0x812eed28[0m) + 0x0aae 7 812eecdc (+ 48) 800756df <kernel_x86> ExpressionParser<[32m0x812eed2c[0m>::EvaluateCommand(char const*: [34m0x801355a0[0m [36m"bt"[0m, int&: [34m0x812eed28[0m) + 0x06df 8 812eed0c (+ 192) 80075858 <kernel_x86>:evaluate_debug_command + 0x0084 9 812eedcc (+ 64) 8006d7a2 <kernel_x86> kernel_debugger_loop(char const*: [34m0x1[0m [31m"<???>"[0m, char const*: [34m0x8012a412[0m [36m"PANIC: "[0m, char*: [34m0x812eee3c[0m, int32: [34m-2147034808[0m) + 0x026c

10 812eee0c (+ 48) 8006d966 <kernel_x86> kernel_debugger_internal(char const*: [34m0x1[0m [31m"<???>"[0m, char const*: [34m0x82ba44c8[0m [36m"(<Ä"[0m, char*: [34m0x812eee5c[0m, int32: [34m-2147034314[0m) + 0x011c 11 812eee3c (+ 32) 8006db49 <kernel_x86>:panic + 0x0023 12 812eee5c (+ 176) 800c6a00 <kernel_x86> vm_soft_fault(VMAddressSpace*: [34m0x1[0m, uint32: [34m0xc202f41d[0m, [34mtrue[0m, [34mtrue[0m) + 0x0903 13 812eef0c (+ 64) 800c7114 <kernel_x86>:vm_page_fault + 0x026a 14 812eef4c (+ 80) 800dd880 <kernel_x86> page_fault_exception(iframe*: [34m0x812eefa8[0m) + 0x0171 15 812eef9c (+ 12) 800e24c6 <kernel_x86>:int_bottom_user + 0x005a user iframe at 0x812eefa8 (end = 0x812ef000)

eax 0x8 ebx 0x3788a8 ecx 0x6fff0000 edx 0x4 esi 0x378f60 edi 0x0 ebp 0x7ffec378 esp 0x812eefdc eip 0x303572 eflags 0x10246 user esp 0x7ffec360 vector: 0xe, error code: 0x7

16 812eefa8 (+ 0) 00303572 </boot/system/lib/libroot.so@0x002b1000>:unknown + 0x52572 17 7ffec378 (+ 32) 00339a79 </boot/system/lib/libroot.so@0x002b1000>:unknown + 0x88a79 18 7ffec398 (+ 48) 0022f373 </boot/system/bin/bash@0x00200000>:unknown + 0x2f373 19 7ffec3c8 (+ 144) 0022fc59 </boot/system/bin/bash@0x00200000>:unknown + 0x2fc59 20 7ffec458 (+ 192) 0022ca2a </boot/system/bin/bash@0x00200000>:unknown + 0x2ca2a 21 7ffec518 (+ 208) 0022d3b6 </boot/system/bin/bash@0x00200000>:unknown + 0x2d3b6 22 7ffec5e8 (+ 96) 0027bc1a </boot/system/bin/bash@0x00200000>:unknown + 0x7bc1a 23 7ffec648 (+ 240) 0023b50f </boot/system/bin/bash@0x00200000>:unknown + 0x3b50f 24 7ffec738 (+ 160) 0023df84 </boot/system/bin/bash@0x00200000>:unknown + 0x3df84 25 7ffec7d8 (+ 32) 0023ef38 </boot/system/bin/bash@0x00200000>:unknown + 0x3ef38 26 7ffec7f8 (+ 64) 00242a5a </boot/system/bin/bash@0x00200000>:unknown + 0x42a5a 27 7ffec838 (+ 64) 0023ba8d </boot/system/bin/bash@0x00200000>:unknown + 0x3ba8d 28 7ffec878 (+ 96) 0023bc1f </boot/system/bin/bash@0x00200000>:unknown + 0x3bc1f 29 7ffec8d8 (+ 16) 0023bf0a </boot/system/bin/bash@0x00200000>:unknown + 0x3bf0a 30 7ffec8e8 (+ 128) 0023e753 </boot/system/bin/bash@0x00200000>:unknown + 0x3e753 31 7ffec968 (+ 16) 0023ef12 </boot/system/bin/bash@0x00200000>:unknown + 0x3ef12 32 7ffec978 (+ 128) 0022f70a </boot/system/bin/bash@0x00200000>:unknown + 0x2f70a 33 7ffec9f8 (+ 192) 0022ca2a </boot/system/bin/bash@0x00200000>:unknown + 0x2ca2a 34 7ffecab8 (+ 64) 0022dabf </boot/system/bin/bash@0x00200000>:unknown + 0x2dabf 35 7ffecaf8 (+ 192) 0022d187 </boot/system/bin/bash@0x00200000>:unknown + 0x2d187 36 7ffecbb8 (+ 64) 0022dabf </boot/system/bin/bash@0x00200000>:unknown + 0x2dabf 37 7ffecbf8 (+ 192) 0022d187 </boot/system/bin/bash@0x00200000>:unknown + 0x2d187 38 7ffeccb8 (+ 64) 0022dabf </boot/system/bin/bash@0x00200000>:unknown + 0x2dabf 39 7ffeccf8 (+ 192) 0022cdd7 </boot/system/bin/bash@0x00200000>:unknown + 0x2cdd7 40 7ffecdb8 (+ 64) 0022dabf </boot/system/bin/bash@0x00200000>:unknown + 0x2dabf 41 7ffecdf8 (+ 64) 002266bc </boot/system/bin/bash@0x00200000>:unknown + 0x266bc 42 7ffece38 (+ 304) 002261d7 </boot/system/bin/bash@0x00200000>:unknown + 0x261d7 43 7ffecf68 (+ 52) 0021a0dd </boot/system/bin/bash@0x00200000>:unknown + 0x1a0dd 44 7ffecf9c (+ 64) 00105367 </boot/system/runtime_loader@0x00100000>:unknown + 0x5367 45 7ffecfdc (+ 0) 7ffecfec 3049032:sh_main_stack@0x7efed000 + 0xffffec kdebug>