On Monday 27 October 2008, Tony Lindgren wrote: > I've updated our git tree to 2.6.28-rc2 I thought I'd scrub out some old H4 stuff, and had a few problems: - It wouldn't link vmlinux because compressed/misc.o used VFP instructions, but the main kernel didn't. Worked around this by adding "--no-warn-mismatch" to the command line. This showed up with two differen CodeSourcery toolchains: the older arm-2007q3 and the current arm-2008q3. - Build fix needed, patch to follow (camera driver gone). - MMC oopsed; stack backtrace appended. (Apologies, lines are doubled because of LL_DEBUG.) The BUG() is basically that mmc_omap_start_request() doesn't like to be called with IRQs blocked ... but, hmm, looks like LOCKDEP forces IRQF_DISABLED on, and it breaks *this* MMC driver too. (I guess I'll work around by taking MMC out of the build.) More later... - Dave NOTE: there's no MMC card inserted here. <7>mmc0: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0 timing 0 <7>mmc0: clock 400000Hz busmode 1 powermode 2 cs 1 Vdd 21 width 0 timing 0 <7>mmc0: starting CMD0 arg 00000000 flags 000000c0 <7>mmci-omap mmci-omap.0: MMC IRQ 0001 (CMD 0): EOC <7>mmc0: req done (CMD0): 0: 00000000 00000000 00000000 00000000 <7>mmc0: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0 timing 0 <7>mmc0: starting CMD8 arg 000001aa flags 000002f5 <7>mmci-omap mmci-omap.0: MMC IRQ 0080 (CMD 8): CTO <7>mmc0: req done (CMD8): -110: 00000000 00000000 00000000 00000000 <7>mmc0: starting CMD5 arg 00000000 flags 000002e1 <7>mmci-omap mmci-omap.0: MMC IRQ 0080 (CMD 5): CTO <7>mmc0: req failed (CMD5): -110, retrying... <2>kernel BUG at drivers/mmc/host/omap.c:1159! kernel BUG at drivers/mmc/host/omap.c:1159! <1>Unable to handle kernel NULL pointer dereference at virtual address 00000000 Unable to handle kernel NULL pointer dereference at virtual address 00000000 <1>pgd = c0004000 pgd = c0004000 <1>[00000000] *pgd=00000000[00000000] *pgd=00000000 Internal error: Oops: 805 [#1] Internal error: Oops: 805 [#1] Modules linked in:Modules linked in: CPU: 0 Not tainted (2.6.28-rc2-omap1 #1) CPU: 0 Not tainted (2.6.28-rc2-omap1 #1) PC is at __bug+0x20/0x2c PC is at __bug+0x20/0x2c LR is at vprintk+0x2f0/0x338 LR is at vprintk+0x2f0/0x338 pc : [<c0029454>] lr : [<c00451cc>] psr: 60000193 sp : c02ede08 ip : c02edd7c fp : c02ede14 pc : [<c0029454>] lr : [<c00451cc>] psr: 60000193 sp : c02ede08 ip : c02edd7c fp : c02ede14 r10: 00000005 r9 : c38c3ec0 r8 : c38c3ec0 r10: 00000005 r9 : c38c3ec0 r8 : c38c3ec0 r7 : c39be58c r6 : 00000000 r5 : c3a06000 r4 : c3a06000 r7 : c39be58c r6 : 00000000 r5 : c3a06000 r4 : c3a06000 r3 : 00000000 r2 : 20000193 r1 : c02ef844 r0 : 0000002f r3 : 00000000 r2 : 20000193 r1 : c02ef844 r0 : 0000002f Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 00c5387f Table: 80004000 DAC: 00000017 Control: 00c5387f Table: 80004000 DAC: 00000017 Process swapper (pid: 0, stack limit = 0xc02ec258) Process swapper (pid: 0, stack limit = 0xc02ec258) Stack: (0xc02ede08 to 0xc02ee000) Stack: (0xc02ede08 to 0xc02ee000) de00: de00: c02ede48 c02ede48 c02ede18 c02ede18 c01c93bc c01c93bc c0029440 c0029440 c02ede24 c02ede24 c0065644 c0065644 de20: de20: c3a06000 c3a06000 c3a06148 c3a06148 c39be88c c39be88c c39be58c c39be58c c38c3ec0 c38c3ec0 00000001 00000001 00000005 00000005 c02ede6c c02ede6c de40: de40: c02ede4c c02ede4c c01c9478 c01c9478 c01c90b8 c01c90b8 c38c3ef4 c38c3ef4 c39be58c c39be58c ffffff92 ffffff92 c38c3ec0 c38c3ec0 00000001 00000001 de60: de60: c02ede9c c02ede9c c02ede70 c02ede70 c01c1a20 c01c1a20 c01c9400 c01c9400 c3a06148 c3a06148 c02ede9c c02ede9c c02ede84 c02ede84 c01c8b00 c01c8b00 de80: de80: c39be58c c39be58c c38c3ef4 c38c3ef4 00000001 00000001 00000000 00000000 c02edeb4 c02edeb4 c02edea0 c02edea0 c01c8f04 c01c8f04 c01c199c c01c199c dea0: dea0: c3a06000 c3a06000 0000000f 0000000f c02edeec c02edeec c02edeb8 c02edeb8 c01c9bb8 c01c9bb8 c01c8e1c c01c8e1c 00000005 00000005 00000000 00000000 dec0: dec0: 00000000 00000000 c39ad5a4 c39ad5a4 00000000 00000000 00000000 00000000 00000053 00000053 8001def8 8001def8 4107b362 4107b362 8001dec4 8001dec4 dee0: dee0: c02edf0c c02edf0c c02edef0 c02edef0 c006f80c c006f80c c01c97ec c01c97ec c02fd898 c02fd898 00000053 00000053 c39ad5a4 c39ad5a4 c02fd8cc c02fd8cc df00: df00: c02edf2c c02edf2c c02edf10 c02edf10 c0070fa4 c0070fa4 c006f7ec c006f7ec 00000053 00000053 00000000 00000000 c001fd94 c001fd94 c02f0a0c c02f0a0c df20: df20: c02edf44 c02edf44 c02edf30 c02edf30 c0025064 c0025064 c0070efc c0070efc ffffffff ffffffff d80fe000 d80fe000 c02edfac c02edfac c02edf48 c02edf48 df40: df40: c00259c8 c00259c8 c002500c c002500c 00000001 00000001 c02ef844 c02ef844 c02ef844 c02ef844 00002e65 00002e65 c0030e68 c0030e68 c02ec000 c02ec000 df60: df60: c001fd94 c001fd94 c02f0a0c c02f0a0c 8001def8 8001def8 4107b362 4107b362 8001dec4 8001dec4 c02edfac c02edfac c02edf64 c02edf64 c02edf90 c02edf90 df80: df80: c0066ef4 c0066ef4 c0031010 c0031010 20000013 20000013 ffffffff ffffffff c02f0a0c c02f0a0c 8001def8 8001def8 c0030e68 c0030e68 c02ec000 c02ec000 dfa0: dfa0: c02edfc4 c02edfc4 c02edfb0 c02edfb0 c0026d40 c0026d40 c0030e74 c0030e74 c06b4950 c06b4950 c001fd98 c001fd98 c02edfd4 c02edfd4 c02edfc8 c02edfc8 dfc0: dfc0: c023f818 c023f818 c0026d0c c0026d0c c02edff4 c02edff4 c02edfd8 c02edfd8 c0008abc c0008abc c023f7cc c023f7cc c000860c c000860c c001fd98 c001fd98 dfe0: dfe0: 00c5387d 00c5387d c03147cc c03147cc 00000000 00000000 c02edff8 c02edff8 80008034 80008034 c000889c c000889c 00000000 00000000 00000000 00000000 Backtrace: Backtrace: [<c0029434>] [<c0029434>] (__bug+0x0/0x2c) (__bug+0x0/0x2c) from [<c01c93bc>] from [<c01c93bc>] (mmc_omap_start_request+0x310/0x348) (mmc_omap_start_request+0x310/0x348) [<c01c90ac>] [<c01c90ac>] (mmc_omap_start_request+0x0/0x348) (mmc_omap_start_request+0x0/0x348) from [<c01c9478>] from [<c01c9478>] (mmc_omap_request+0x84/0x90) (mmc_omap_request+0x84/0x90) [<c01c93f4>] [<c01c93f4>] (mmc_omap_request+0x0/0x90) (mmc_omap_request+0x0/0x90) from [<c01c1a20>] from [<c01c1a20>] (mmc_request_done+0x90/0x178) (mmc_request_done+0x90/0x178) r8:00000001 r8:00000001 r7:c38c3ec0 r7:c38c3ec0 r6:ffffff92 r6:ffffff92 r5:c39be58c r5:c39be58c r4:c38c3ef4 r4:c38c3ef4 [<c01c1990>] [<c01c1990>] (mmc_request_done+0x0/0x178) (mmc_request_done+0x0/0x178) from [<c01c8f04>] from [<c01c8f04>] (mmc_omap_cmd_done+0xf4/0xfc) (mmc_omap_cmd_done+0xf4/0xfc) r7:00000000 r7:00000000 r6:00000001 r6:00000001 r5:c38c3ef4 r5:c38c3ef4 r4:c39be58c r4:c39be58c [<c01c8e10>] [<c01c8e10>] (mmc_omap_cmd_done+0x0/0xfc) (mmc_omap_cmd_done+0x0/0xfc) from [<c01c9bb8>] from [<c01c9bb8>] (mmc_omap_irq+0x3d8/0x490) (mmc_omap_irq+0x3d8/0x490) r5:0000000f r5:0000000f r4:c3a06000 r4:c3a06000 [<c01c97e0>] [<c01c97e0>] (mmc_omap_irq+0x0/0x490) (mmc_omap_irq+0x0/0x490) from [<c006f80c>] from [<c006f80c>] (handle_IRQ_event+0x2c/0x68) (handle_IRQ_event+0x2c/0x68) [<c006f7e0>] [<c006f7e0>] (handle_IRQ_event+0x0/0x68) (handle_IRQ_event+0x0/0x68) from [<c0070fa4>] from [<c0070fa4>] (handle_level_irq+0xb4/0x11c) (handle_level_irq+0xb4/0x11c) r7:c02fd8cc r7:c02fd8cc r6:c39ad5a4 r6:c39ad5a4 r5:00000053 r5:00000053 r4:c02fd898 r4:c02fd898 [<c0070ef0>] [<c0070ef0>] (handle_level_irq+0x0/0x11c) (handle_level_irq+0x0/0x11c) from [<c0025064>] from [<c0025064>] (__exception_text_start+0x64/0x84) (__exception_text_start+0x64/0x84) r7:c02f0a0c r7:c02f0a0c r6:c001fd94 r6:c001fd94 r5:00000000 r5:00000000 r4:00000053 r4:00000053 [<c0025000>] [<c0025000>] (__exception_text_start+0x0/0x84) (__exception_text_start+0x0/0x84) from [<c00259c8>] from [<c00259c8>] (__irq_svc+0x28/0x80) (__irq_svc+0x28/0x80) Exception stack(0xc02edf48 to 0xc02edf90) Exception stack(0xc02edf48 to 0xc02edf90) df40: df40: 00000001 00000001 c02ef844 c02ef844 c02ef844 c02ef844 00002e65 00002e65 c0030e68 c0030e68 c02ec000 c02ec000 df60: df60: c001fd94 c001fd94 c02f0a0c c02f0a0c 8001def8 8001def8 4107b362 4107b362 8001dec4 8001dec4 c02edfac c02edfac c02edf64 c02edf64 c02edf90 c02edf90 df80: df80: c0066ef4 c0066ef4 c0031010 c0031010 20000013 20000013 ffffffff ffffffff r5:d80fe000 r5:d80fe000 r4:ffffffff r4:ffffffff [<c0030e68>] [<c0030e68>] (omap2_pm_idle+0x0/0x230) (omap2_pm_idle+0x0/0x230) from [<c0026d40>] from [<c0026d40>] (cpu_idle+0x40/0x60) (cpu_idle+0x40/0x60) r5:c02ec000 r5:c02ec000 r4:c0030e68 r4:c0030e68 [<c0026d00>] [<c0026d00>] (cpu_idle+0x0/0x60) (cpu_idle+0x0/0x60) from [<c023f818>] from [<c023f818>] (rest_init+0x58/0x6c) (rest_init+0x58/0x6c) r5:c001fd98 r5:c001fd98 r4:c06b4950 r4:c06b4950 [<c023f7c0>] [<c023f7c0>] (rest_init+0x0/0x6c) (rest_init+0x0/0x6c) from [<c0008abc>] from [<c0008abc>] (start_kernel+0x22c/0x274) (start_kernel+0x22c/0x274) [<c0008890>] [<c0008890>] (start_kernel+0x0/0x274) (start_kernel+0x0/0x274) from [<80008034>] from [<80008034>] (0x80008034) (0x80008034) r5:c03147cc r5:c03147cc r4:00c5387d r4:00c5387d Code: Code: e1a01000 e1a01000 e59f000c e59f000c eb085c1a eb085c1a e3a03000 e3a03000 (e5833000) (e5833000) <0>Kernel panic - not syncing: Fatal exception in interrupt Kernel panic - not syncing: Fatal exception in interrupt -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
