Tool/software: Linux
Hi, everybody
Do you know how to debug this program? or how to find out the problem?
[ 66.004241] BUG: Bad page state in process wc pfn:8f6f8
[ 66.009826] page:c084cf00 count:0 mapcount:0 mapping: (null) index:0x0
[ 66.016754] page flags: 0x800(private)
[ 66.020721] Modules linked in: 8188eu(O)
[ 66.024810] Backtrace:
[ 66.027404] [<c0017dbc>] (dump_backtrace+0x0/0x10c) from [<c040d834>] (dump_stack+0x18/0x1c)
[ 66.036224] r6:c05fb748 r5:c084cf00 r4:c0644e28 r3:c05fa80c
[ 66.042175] [<c040d81c>] (dump_stack+0x0/0x1c) from [<c007dcf8>] (bad_page+0xb0/0x110)
[ 66.050445] [<c007dc48>] (bad_page+0x0/0x110) from [<c007de18>] (free_pages_prepare+0xc0/0xc8)
[ 66.059448] r6:00000000 r5:00000000 r4:c084cf00 r3:00000800
[ 66.065399] [<c007dd58>] (free_pages_prepare+0x0/0xc8) from [<c007f230>] (__free_pages_ok+0x24/0xf8)
[ 66.074951] r7:cf439980 r6:00000002 r5:00000800 r4:c084cf00
[ 66.080871] [<c007f20c>] (__free_pages_ok+0x0/0xf8) from [<c007f504>] (__free_pages+0x40/0x4c)
[ 66.089874] r8:cf6da940 r7:cf439980 r6:c05fa270 r5:00000000 r4:00000002
[ 66.096710] r3:c084cf10
[ 66.099456] [<c007f4c4>] (__free_pages+0x0/0x4c) from [<c007f548>] (free_pages+0x38/0x44)
[ 66.108001] r5:00000040 r4:cf6f8000
[ 66.111724] [<c007f510>] (free_pages+0x0/0x44) from [<c001baf8>] (pgd_free+0xa8/0xc8)
[ 66.119934] [<c001ba50>] (pgd_free+0x0/0xc8) from [<c003b58c>] (__mmdrop+0x24/0x44)
[ 66.127960] r4:cf439380 r3:c0607df8
[ 66.131683] [<c003b568>] (__mmdrop+0x0/0x44) from [<c0038468>] (finish_task_switch.constprop.120+0x90/0x98)
[ 66.141876] r4:cf6daec0 r3:cf439380
[ 66.145629] [<c00383d8>] (finish_task_switch.constprop.120+0x0/0x98) from [<c04112f8>] (__schedule+0x19c/0x35c)
[ 66.156158] r5:cf6f4000 r4:c05fa270
[ 66.159912] [<c041115c>] (__schedule+0x0/0x35c) from [<c04115ac>] (schedule+0x50/0x68)
[ 66.168212] [<c041155c>] (schedule+0x0/0x68) from [<c00ac018>] (pipe_wait+0x60/0x7c)
[ 66.176300] [<c00abfb8>] (pipe_wait+0x0/0x7c) from [<c00ac948>] (pipe_read+0x414/0x550)
[ 66.184661] r5:00000000 r4:cf518d00
[ 66.188415] [<c00ac534>] (pipe_read+0x0/0x550) from [<c00a4508>] (do_sync_read+0xac/0xec)
[ 66.196990] [<c00a445c>] (do_sync_read+0x0/0xec) from [<c00a4cdc>] (vfs_read+0xa0/0x144)
[ 66.205444] [<c00a4c3c>] (vfs_read+0x0/0x144) from [<c00a4dc0>] (sys_read+0x40/0x78)
[ 66.213531] r8:00001000 r7:400d6000 r6:cf045940 r5:00000000 r4:00000000
[ 66.220581] [<c00a4d80>] (sys_read+0x0/0x78) from [<c0014740>] (ret_fast_syscall+0x0/0x30)
[ 66.229217] r8:c00148e8 r7:00000003 r6:001dc078 r5:001b78e2 r4:001dc078
