Hi, I have a PPC440EPx and I am testing out the builtin watchdog. I have a couple of questions:
Is there a reason that booke_wdt.c does not specify a MODULE_LICENSE? >From the copyright notice at the top it appears to be GPL. As written, it taints the kernel. Also, if I test out the driver by killing my process that's doing the pinging, I get a kernel panic: Bad trap at PC: c0009268, MSR: 29000, vector=1022 Tainted: P Oops: Exception in kernel mode, sig: 5 [#1] NIP: C0009268 LR: C00092C4 CTR: C002F6E4 REGS: c02d7f50 TRAP: 1022 Tainted: P (2.6.21-rc4-ts-1-ppc) MSR: 00029000 <EE,ME> CR: 24D12582 XER: 00000000 TASK = c02809d0[0] 'swapper' THREAD: c029c000 GPR00: 00000000 C029DF90 C02809D0 00000000 C0008294 00000000 00072951 00000000 GPR08: 00002D0F C02D9800 22044288 00000000 00005196 00000000 0FFB2C00 00000001 GPR16: 007FFF23 00000000 00800000 FFFFFFFF 007FFF00 0FFAE6A0 00000000 00000001 GPR24: 00000000 007FFE70 C02D8000 C02D0000 C02E0000 C029C028 00000010 C029C000 NIP [C0009268] cpu_idle+0x64/0xd0 LR [C00092C4] cpu_idle+0xc0/0xd0 Call Trace: [C029DF90] [C00092C4] cpu_idle+0xc0/0xd0 (unreliable) [C029DFB0] [C00012B4] rest_init+0x28/0x38 [C029DFC0] [C029E720] start_kernel+0x220/0x29c [C029DFF0] [C0000200] skpinv+0x1a8/0x1e4 Instruction dump: 38000010 7d20e828 7d290378 7d20e92d 40a2fff4 801f0028 393c9800 700b0008 40820064 80090030 3bc00010 2f800000 <419e0060> 7c00e828 7c00f078 7c00e92d Bad trap at PC: c0003408, MSR: 21000, vector=1022 Tainted: P Oops: Exception in kernel mode, sig: 5 [#2] NIP: C0003408 LR: C0002100 CTR: 00000000 REGS: c02d7f50 TRAP: 1022 Tainted: P (2.6.21-rc4-ts-1-ppc) MSR: 00021000 <ME> CR: 44D12522 XER: 00000000 TASK = c02809d0[0] 'swapper' THREAD: c029c000 GPR00: 08000000 C02D7DD0 C02809D0 C02D7DE0 00000001 00000001 00000000 00004000 GPR08: C02D0000 C0002100 00021002 C0003408 C0280B80 00000000 0FFB2C00 00000001 GPR16: 007FFF23 00000000 00800000 FFFFFFFF 007FFF00 0FFAE6A0 00000000 00000001 GPR24: 00000000 007FFE70 C02D8000 C02D0000 C02E0000 00000000 00000005 C02D7F50 NIP [C0003408] timer_interrupt+0x0/0x224 LR [C0002100] ret_from_except+0x0/0x18 Call Trace: Instruction dump: 7d0b4378 7d635b78 4e800020 3d20c02d 800950bc 7c1603a6 7d4c42e6 3d20c02e 3d60c02d 9149f384 914b50b4 4e800020 <7c0802a6> 9421ffc0 be810010 90010044 Kernel panic - not syncing: Attempted to kill the idle task! Rebooting in 180 seconds..Bad trap at PC: c00066b8, MSR: 21000, vector=1022 Tainted: P Oops: Exception in kernel mode, sig: 5 [#3] NIP: C00066B8 LR: C0002100 CTR: 00033C76 REGS: c02d7f50 TRAP: 1022 Tainted: P (2.6.21-rc4-ts-1-ppc) MSR: 00021000 <ME> CR: 44D12588 XER: 00000000 TASK = c02809d0[0] 'swapper' THREAD: c029c000 GPR00: 00182000 C02D7CF0 C02809D0 C02D7D00 00000001 00000001 00000000 00000030 GPR08: C02DB2E4 C0002100 00021002 C00066B8 C0280B80 00000000 0FFB2C00 00000001 GPR16: 007FFF23 00000000 00800000 FFFFFFFF 007FFF00 0FFAE6A0 00000000 00000001 GPR24: 00000000 007FFE70 C02D8000 C02D0000 00487AB0 00003311 C0290000 C02D0000 NIP [C00066B8] do_IRQ+0x0/0xb8 LR [C0002100] ret_from_except+0x0/0x18 Call Trace: Instruction dump: 7fc3f378 3880000a 48073311 4bfffea0 3d20c024 38a97e9c 4bffff30 3c80c024 38847e84 7fc3f378 48073321 4bffff08 <7c0802a6> 9421fff0 90010014 bfc10008 Bad trap at PC: c00066b8, MSR: 21000, vector=1022 Tainted: P Oops: Exception in kernel mode, sig: 5 [#4] NIP: C00066B8 LR: C0002100 CTR: 00000000 REGS: c02d7f50 TRAP: 1022 Tainted: P (2.6.21-rc4-ts-1-ppc) MSR: 00021000 <ME> CR: 44D12522 XER: 00000000 TASK = c02809d0[0] 'swapper' THREAD: c029c000 GPR00: C0002810 C02D7DD0 C02809D0 C02D7DE0 00000001 00000001 00000000 00004000 GPR08: C02D0000 C0002100 00021002 C00066B8 C0280B80 00000000 0FFB2C00 00000001 GPR16: 007FFF23 00000000 00800000 FFFFFFFF 007FFF00 0FFAE6A0 00000000 00000001 GPR24: 00000000 007FFE70 C02D8000 C02D0000 00487AB0 00000000 00000005 C02D7F50 NIP [C00066B8] do_IRQ+0x0/0xb8 LR [C0002100] ret_from_except+0x0/0x18 Call Trace: Instruction dump: 7fc3f378 3880000a 48073311 4bfffea0 3d20c024 38a97e9c 4bffff30 3c80c024 38847e84 7fc3f378 48073321 4bffff08 <7c0802a6> 9421fff0 90010014 bfc10008 Bad trap at PC: c00066b8, MSR: 21000, vector=1022 Tainted: P Oops: Exception in kernel mode, sig: 5 [#5] NIP: C00066B8 LR: C0002100 CTR: 00000000 REGS: c02d7f50 TRAP: 1022 Tainted: P (2.6.21-rc4-ts-1-ppc) MSR: 00021000 <ME> CR: 44D12522 XER: 00000000 TASK = c02809d0[0] 'swapper' THREAD: c029c000 GPR00: C0002810 C02D7DD0 C02809D0 C02D7DE0 00000001 00000001 00000000 00004000 GPR08: C02D0000 C0002100 00021002 C00066B8 C0280B80 00000000 0FFB2C00 00000001 GPR16: 007FFF23 00000000 00800000 FFFFFFFF 007FFF00 0FFAE6A0 00000000 00000001 GPR24: 00000000 007FFE70 C02D8000 C02D0000 00487AB0 00000000 00000005 C02D7F50 NIP [C00066B8] do_IRQ+0x0/0xb8 LR [C0002100] ret_from_except+0x0/0x18 Call Trace: Instruction dump: 7fc3f378 3880000a 48073311 4bfffea0 3d20c024 38a97e9c 4bffff30 3c80c024 38847e84 7fc3f378 48073321 4bffff08 <7c0802a6> 9421fff0 90010014 bfc10008 This goes on for a while until it eventually reboots. Is that the expected behavior? Mike _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
