Hi: thanks for all your kind help. 2009/10/28 David Daney <ddaney@xxxxxxxxxxxxxxxxxx>: > loody wrote: >> >> hi >> >> 2009/10/28 Mulyadi Santosa <mulyadi.santosa@xxxxxxxxx>: >>> >>> Hi... >>> >>> On Tue, Oct 27, 2009 at 8:27 PM, loody <miloody@xxxxxxxxx> wrote: >>>> >>>> Dear all: >>>> I use kernel 2.6.18 and I get the kernel panic as below: >>>> Unhandled kernel unaligned access[#1]: >>>> Cpu 0 >>>> $ 0 : 00000000 11000001 0000040a 8721f0d8 >>>> $ 4 : 874a6c00 80001d18 00000000 00000000 >>>> $ 8 : 00000000 ffffa438 00000000 874c2000 >>>> $12 : 00000000 00000000 00005800 00011000 >>>> $16 : 80001d10 874a6c40 874a6c00 87d7bf00 >>>> $20 : 874a6c78 871a0000 87370000 874a6c80 >>>> $24 : 00000000 2aacc770 >>>> $28 : 87d7a000 87d7be88 ffffa438 8709ed20 >>>> Hi : 00000000 >>>> Lo : 00000000 >>>> epc : 8709e72c sync_sb_inodes+0x9c/0x320 Not tainted >>>> ra : 8709ed20 writeback_inodes+0xb4/0x160 >>> >>> Hmmm, your machine is not x86, is it? So, I guess this panic is caused >>> by unaligned memory access. >> >> Yes, my machine is mips machine. >> if do_ade in unaligned.c is a trap, where do we register it? >> I grep the source code but I only find the definition but cannot get >> the place where we register the trap. > > > Look in genex.S for lines like: > > BUILD_HANDLER adel ade ade silent /* #4 */ > BUILD_HANDLER ades ade ade silent /* #5 */ > > And also in traps.c for lines like: > > set_except_vector(4, handle_adel); > set_except_vector(5, handle_ades); Take "8709ed20 writeback_inodes+0xb4/0x160" for example, what does 0x160, the last hex mean? The value of parameter? appreciate your help, miloody
