> -----Original Message----- > From: Tony Lindgren [mailto:tony@xxxxxxxxxxx] > Sent: Thursday, March 10, 2011 3:33 AM > To: DebBarma, Tarun Kanti > Cc: linux-omap@xxxxxxxxxxxxxxx > Subject: Re: [PATCH v12 6/9] dmtimer: switch-over to platform device > driver > > * Tarun Kanti DebBarma <tarun.kanti@xxxxxx> [110308 15:41]: > > switch-over to platform device driver through following changes: > > (a) initiate dmtimer early initialization from omap2_gp_timer_init() > > in timer-gp.c. This is equivalent of timer_init()->timer->init(). > > (b) modify plat-omap/dmtimer routines to use new register map and > > platform data. > > This patch breaks booting for 2420 and makes boot hang early > on 2430. Note that to test with omap-for-linus branch you need > to disable the following in omap2plus_defconfig: > > CONFIG_ARCH_OMAP3 > CONFIG_ARCH_OMAP4 > CONFIG_CPU_32v6K I disabled above options on omap-for-linus *WITHOUT* my patch series. I am still seeing crash. Here is the log. I tried on two different setups. Not sure if I am missing something. [...] [ 0.000000] WARNING: at arch/arm/kernel/hw_breakpoint.c:142 get_debug_arch+0x3c/0x68() [ 0.000000] CPUID feature registers not supported. Assuming v6 debug is present. [ 0.000000] Modules linked in: [ 0.000000] [<c073f9b0>] (unwind_backtrace+0x0/0xec) from [<c0762348>] (warn_slowpath_common+0x4c/0x64) [ 0.000000] [<c0762348>] (warn_slowpath_common+0x4c/0x64) from [<c07623e0>] (warn_slowpath_fmt+0x2c/0x3c) [ 0.000000] [<c07623e0>] (warn_slowpath_fmt+0x2c/0x3c) from [<c074029c>] (get_debug_arch+0x3c/0x68) [ 0.000000] [<c074029c>] (get_debug_arch+0x3c/0x68) from [<c07402d0>] (debug_arch_supported+0x8/0x20) [ 0.000000] [<c07402d0>] (debug_arch_supported+0x8/0x20) from [<c074038c>] (hw_breakpoint_slots+0xc/0x50) [ 0.000000] [<c074038c>] (hw_breakpoint_slots+0xc/0x50) from [<c0016a54>] (init_hw_breakpoint+0xc/0x98) [ 0.000000] [<c0016a54>] (init_hw_breakpoint+0xc/0x98) from [<c00169e4>] (perf_event_init+0xb8/0x11c) [ 0.000000] [<c00169e4>] (perf_event_init+0xb8/0x11c) from [<c0008ad0>] (start_kernel+0x150/0x2d8) [ 0.000000] [<c0008ad0>] (start_kernel+0x150/0x2d8) from [<80008034>] (0x80008034) [ 0.000000] ---[ end trace 1b75b31a2719ed1c ]--- [ 0.000000] NR_IRQS:409 [ 0.000000] IRQ: Found an INTC at 0xfa0fe000 (revision 2.0) with 96 interrupts [ 0.000000] Total of 96 interrupts on 1 active controller [ 0.000000] Unable to handle kernel NULL pointer dereference at virtual address 00000078 [ 0.000000] pgd = c0004000 [ 0.000000] [00000078] *pgd=00000000 [ 0.000000] Internal error: Oops: 5 [#1] [ 0.000000] last sysfs file: [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 Tainted: G W (2.6.38-rc7-00165-g0dde52a #199) [ 0.000000] PC is at gpmc_cs_read_reg+0x14/0x20 [ 0.000000] LR is at gpmc_cs_mem_enabled+0xc/0x14 [ 0.000000] pc : [<c07469b0>] lr : [<c07469c8>] psr: 600001d3 [ 0.000000] sp : c0c2bf80 ip : 00000028 fp : c0c2bfc4 [ 0.000000] r10: 00000000 r9 : 4107b362 r8 : 8002b490 [ 0.000000] r7 : c0c3087c r6 : 00000000 r5 : c0c7a700 r4 : 04000000 [ 0.000000] r3 : 00000000 r2 : 00000000 r1 : 00000078 r0 : 00000000 [ 0.000000] Flags: nZCv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel [ 0.000000] Control: 00c5387f Table: 80004000 DAC: 00000017 [ 0.000000] Process swapper (pid: 0, stack limit = 0xc0c2a268) [ 0.000000] Stack: (0xc0c2bf80 to 0xc0c2c000) [ 0.000000] bf80: 04000000 c0746f9c c0722578 c0c3087c c0c49868 c0ab3a50 0000005f c072257c [ 0.000000] bfa0: c0c7a700 c0722578 c0c3087c 8002b490 4107b362 8002b3f0 00000000 c00114a8 [ 0.000000] bfc0: 00000000 00000001 c0008000 c000b314 c072257c c0008adc c0008744 00000000 [ 0.000000] bfe0: 00000000 c072257c 00000000 00c5387d c0c2c080 80008034 00000000 00000000 [ 0.000000] [<c07469b0>] (gpmc_cs_read_reg+0x14/0x20) from [<c07469c8>] (gpmc_cs_mem_enabled+0xc/0x14) [ 0.000000] [<c07469c8>] (gpmc_cs_mem_enabled+0xc/0x14) from [<c0746f9c>] (gpmc_cs_request+0x60/0x134) [ 0.000000] [<c0746f9c>] (gpmc_cs_request+0x60/0x134) from [<c00114a8>] (omap_h4_init_irq+0x18/0x48) [ 0.000000] [<c00114a8>] (omap_h4_init_irq+0x18/0x48) from [<c000b314>] (init_IRQ+0x14/0x1c) [ 0.000000] [<c000b314>] (init_IRQ+0x14/0x1c) from [<c0008adc>] (start_kernel+0x15c/0x2d8) [ 0.000000] [<c0008adc>] (start_kernel+0x15c/0x2d8) from [<80008034>] (0x80008034) [ 0.000000] Code: e0211093 e59f300c e2811060 e5933000 (e7930001) [ 0.000000] ---[ end trace 1b75b31a2719ed1d ]--- [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! - Tarun > > In general, let's continue with this series after the merge > window. We must merge intrusive changes like this early around > -rc2, not late in the merge window. > > Regards, > > Tony -- 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
