> -----Original Message----- > From: Zang Roy-R61911 > Sent: Tuesday, April 23, 2013 2:36 AM > To: linuxppc-dev@lists.ozlabs.org > Cc: ga...@kernel.crashing.org; Zang Roy-R61911; Chen Yuanquan-B41889 > Subject: [PATCH] powerpc/fsl-pci:fix incorrect iounmap pci hose- > >private_data > > pci hose->private_data will be used by other function, for example, > fsl_pcie_check_link(), so do not iounmap it. > > fix the kerenl crash on T4240: > > Unable to handle kernel paging request for data at address > 0x8000080080060f14 > Faulting instruction address: 0xc000000000032554 > Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=24 T4240 QDS > Modules linked in: > NIP: c000000000032554 LR: c00000000003254c CTR: c00000000001e5c0 > REGS: c000000179143440 TRAP: 0300 Not tainted > (3.8.8-rt2-00754-g951f064-dirt) > MSR: 0000000080029000 <CE,EE,ME> CR: 24adbe22 XER: 00000000 > SOFTE: 0 > DEAR: 8000080080060f14, ESR: 0000000000000000 TASK = c00000017913d2c0[1] > 'swapper/0' THREAD: c000000179140000 CPU: 2 > GPR00: c00000000003254c c0000001791436c0 c000000000ae2998 > 0000000000000027 > GPR04: 0000000000000000 00000000000005a5 0000000000000000 > 0000000000000002 > GPR08: 3030303038303038 c000000000a2d4d0 c000000000aebeb8 > c000000000af2998 > GPR12: 0000000024adbe22 c00000000fffa800 c000000000001be0 > 0000000000000000 > GPR16: 0000000000000000 0000000000000000 0000000000000000 > 0000000000000000 > GPR20: 0000000000000000 0000000000000000 0000000000000000 > c0000000009ddf70 > GPR24: c0000000009e8d40 c000000000af2998 c000000000b1529c > c000000179143b40 > GPR28: c0000001799b4000 c000000179143c00 8000080080060000 > c000000000727ec8 > NIP [c000000000032554] .fsl_pcie_check_link+0x104/0x150 LR > [c00000000003254c] .fsl_pcie_check_link+0xfc/0x150 Call Trace: > [c0000001791436c0] [c00000000003254c] .fsl_pcie_check_link+0xfc/0x150 > (unreliab) > [c000000179143a30] [c0000000000325d4] > .fsl_indirect_read_config+0x34/0xb0 > [c000000179143ad0] [c0000000002c7ee8] > .pci_bus_read_config_byte+0x88/0xd0 > [c000000179143b90] [c0000000009c0528] .pci_apply_final_quirks+0x9c/0x18c > [c000000179143c40] [c00000000000142c] .do_one_initcall+0x5c/0x1f0 > [c000000179143cf0] [c0000000009a0bb4] .kernel_init_freeable+0x180/0x264 > [c000000179143db0] [c000000000001bfc] .kernel_init+0x1c/0x420 > [c000000179143e30] [c0000000000008b4] .ret_from_kernel_thread+0x64/0xb0 > Instruction dump: > 60000000 4bffffa0 ebc301d0 3fe2ffc4 3c62ffe0 3bff5530 38638a78 7fe4fb78 > 7fc5f378 486ea77d 60000000 7c0004ac <801e0f14> 0c000000 4c00012c 3c62ffe0 > ---[ end trace f841fbc03c9d2e1b ]--- > > Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b > > Rebooting in 180 seconds.. > > Signed-off-by: Yuanquan Chen <yuanquan.c...@freescale.com> > Signed-off-by: Roy Zang <tie-fei.z...@freescale.com> > --- > based on Kumar's next branch. > tested on P3041 and T4240. Please ignore this patch, I will send a v2 version. Thanks. Roy
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