On Thursday, June 23, 2011 06:09:40 PM Stanislav Brabec wrote: > Hallo. > > These Oops and kernel panic were observed on a Zaurus (spitz) machine > (ARMv5, PXA270). Looks similar to "Re: [PATCH v2] Input: Make ADS7846 independent on regulator" CCing previously involved people, I'd like to see their opinion. > > Kernel version: config-3.0.0-rc4+ (2992c4b) > > Unable to handle kernel NULL pointer dereference at virtual address > 00000000 pgd = c0004000 > [00000000] *pgd=00000000 > Internal error: Oops: 17 [#1] PREEMPT > Modules linked in: uinput g_ether cryptomgr aead arc4 crypto_algapi > rt2800usb rt2800lib rt2x00usb rt2x00lib mac80211 cfg80211 sg pcmciamtd > mousedev snd_soc_wm8750 snd_soc_pxa2xx_i2s snd_soc_core ohci_hcd usbcore > pxa27x_udc physmap snd_pcm_oss snd_pcm snd_timer snd_page_alloc > snd_mixer_oss snd soundcore rfcomm pxaficp_ir ircomm_tty ircomm irda ipv6 > hidp hid bluetooth rfkill crc16 CPU: 0 Not tainted (3.0.0-rc4+ #5) > PC is at complete+0x28/0x7c > LR is at complete+0x28/0x7c > pc : [<c0036b6c>] lr : [<c0036b6c>] psr: 80000093 > sp : c3897b68 ip : c3897b68 fp : c3897b84 > r10: c4806000 r9 : c381f3e0 r8 : 0000000a > r7 : c30f0da8 r6 : 00000000 r5 : 00000000 r4 : a0000013 > r3 : c3896000 r2 : 00000000 r1 : 00000103 r0 : 00000004 > Flags: Nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel > Control: 0000397f Table: a080c000 DAC: 00000017 > Process kswapd0 (pid: 270, stack limit = 0xc3896278) > Stack: (0xc3897b68 to 0xc3898000) > 7b60: 00000000 c3808158 c3808158 c30f0da8 c3897b94 > c3897b88 7b80: c01e9b0c c0036b50 c3897bb4 c3897b98 c01eac2c c01e9b08 > c3808158 c388e220 7ba0: c30f0df8 c30f0da8 c3897bf4 c3897bb8 c01eb60c > c01eab24 00000000 00000010 7bc0: 00000000 00000000 00000001 c03b3f00 > c039b5d4 00000000 00000103 0000000a 7be0: 00000006 00000000 c3897c14 > c3897bf8 c0044924 c01eb4dc c0044894 c3896000 7c00: 00000001 c03b3f3c > c3897c4c c3897c18 c0044eb8 c00448a0 00000000 c38046c0 7c20: c3897c44 > 00000010 00000000 00100000 00000002 00000001 c3896000 00000000 7c40: > c3897c5c c3897c50 c00453a0 c0044e2c c3897c74 c3897c60 c002406c c0045360 > 7c60: ffffffff c3897cac c3897cfc c3897c78 c0024b84 c002400c 4022d320 > 4022e000 7c80: 08000075 00001000 c32273c0 c03ce1c0 c2b49b78 4022d000 > c2b420b4 00000001 7ca0: 00000000 c3897cfc 00000000 c3897cc0 c00afc54 > c002edd8 00000013 ffffffff 7cc0: 00000000 c0447550 00000002 c32273f4 > c3897d3c c2b49b78 c3897d3c 00000000 7ce0: c341fbec 00000003 00000001 > c03ce1c0 c3897d84 c3897d00 c00affd8 c00afb9c 7d00: c00af774 c003505c > 00000000 c03ce1c0 00000000 c341fc10 c03ce1c0 00000000 7d20: c30d0c28 > c3897d50 c341fc10 c3897e44 c3897d9c c341fbec c00b09cc c3be9308 7d40: > 00000080 00000000 00000000 c341fc00 00000074 00000074 00000000 c03ce1c0 > 7d60: c03ce1c0 c3897f44 c341fbec 00000003 00000001 c3897e44 c3897d9c > c3897d88 7d80: c00b07ac c00aff4c 00000001 c03ce1d8 c3897e2c c3897da0 > c009b940 c00b0778 7da0: 00000001 c03acfc8 00000000 00000000 c3896000 > 00000000 c04032a0 c04032c0 7dc0: c040cc20 c040cc40 c040cc60 c040cc80 > c3897e2c c3897de0 c009a908 c009a7c0 7de0: c0403220 c03bbd14 c3897e54 > c03ce198 c03cec38 c3897df4 c3897df4 00000000 7e00: 00000000 c03acfc8 > c3897f44 00000020 00000020 0000000c c3896000 00000001 7e20: c3897e7c > c3897e30 c009c448 c009b6a4 00000000 00000000 00000001 c3897e38 7e40: > c3897e40 c04445d8 c03ce1f8 00000020 00000000 00000020 c03acfc8 00000002 > 7e60: c3897f44 00000020 0000000c 00000001 c3897f04 c3897e80 c009c8f8 > c009c23c 7e80: 00000001 00000014 c3897f44 00000020 c3897f44 0000000c > c03ad224 c03ad228 7ea0: 00000000 ffffffff 00000001 00000003 c3897ecc > 00000000 00000000 00000000 7ec0: 00000020 c3897ed0 00000056 00000000 > 000018c9 00000000 c03acfc8 c03acfc8 7ee0: 00000000 c03acfc8 c03acfc8 > 00000000 0000000c 00000000 c3897fbc c3897f08 7f00: c009ceb0 c009c580 > 00000000 c039af90 c3897fbc 00000000 c03acfc8 c3897f84 7f20: 00000000 > c3897f8c 00000001 c3896000 00000000 00002f2e 00000000 00000000 7f40: > 184c1a27 00000048 00000000 ffffffff 00000000 000000d0 00000001 00000001 > 7f60: 00000001 0000003c 00000000 00000003 00000000 00000000 000000d0 > 00000000 7f80: c0059f8c c3897f84 c3897f84 00000000 c3897fbc c3825f38 > c03acfc8 c009ca20 7fa0: 00000013 00000000 00000000 00000000 c3897ff4 > c3897fc0 c0059be0 c009ca2c 7fc0: c3825f38 00000000 c03acfc8 00000000 > c3897fd0 c3897fd0 00000000 c3825f38 7fe0: c0059b50 c00258d8 00000000 > c3897ff8 c00258d8 c0059b5c 00000000 00000000 [<c0036b6c>] > (complete+0x28/0x7c) from [<c01e9b0c>] (spi_complete+0x10/0x14) > [<c01e9b0c>] (spi_complete+0x10/0x14) from [<c01eac2c>] > (giveback+0x114/0x12c) [<c01eac2c>] (giveback+0x114/0x12c) from > [<c01eb60c>] (pump_transfers+0x13c/0x6f8) [<c01eb60c>] > (pump_transfers+0x13c/0x6f8) from [<c0044924>] (tasklet_action+0x90/0xf0) > [<c0044924>] (tasklet_action+0x90/0xf0) from [<c0044eb8>] > (__do_softirq+0x98/0x138) [<c0044eb8>] (__do_softirq+0x98/0x138) from > [<c00453a0>] (irq_exit+0x4c/0xa8) [<c00453a0>] (irq_exit+0x4c/0xa8) from > [<c002406c>] (asm_do_IRQ+0x6c/0x8c) [<c002406c>] (asm_do_IRQ+0x6c/0x8c) > from [<c0024b84>] (__irq_svc+0x44/0xcc) Exception stack(0xc3897c78 to > 0xc3897cc0) > 7c60: 4022d320 > 4022e000 7c80: 08000075 00001000 c32273c0 c03ce1c0 c2b49b78 4022d000 > c2b420b4 00000001 7ca0: 00000000 c3897cfc 00000000 c3897cc0 c00afc54 > c002edd8 00000013 ffffffff [<c0024b84>] (__irq_svc+0x44/0xcc) from > [<c002edd8>] (xscale_flush_user_cache_range+0x18/0x3c) [<c002edd8>] > (xscale_flush_user_cache_range+0x18/0x3c) from [<c00affd8>] > (try_to_unmap_file+0x98/0x4ec) [<c00affd8>] (try_to_unmap_file+0x98/0x4ec) > from [<c00b07ac>] (try_to_unmap+0x40/0x60) [<c00b07ac>] > (try_to_unmap+0x40/0x60) from [<c009b940>] (shrink_page_list+0x2a8/0x8cc) > [<c009b940>] (shrink_page_list+0x2a8/0x8cc) from [<c009c448>] > (shrink_inactive_list+0x218/0x344) [<c009c448>] > (shrink_inactive_list+0x218/0x344) from [<c009c8f8>] > (shrink_zone+0x384/0x4ac) [<c009c8f8>] (shrink_zone+0x384/0x4ac) from > [<c009ceb0>] (kswapd+0x490/0x7d0) [<c009ceb0>] (kswapd+0x490/0x7d0) from > [<c0059be0>] (kthread+0x90/0x98) [<c0059be0>] (kthread+0x90/0x98) from > [<c00258d8>] (kernel_thread_exit+0x0/0x8) Code: e3843080 e121f003 e3a00001 > ebfff96a (e5953000) > ---[ end trace a4b97c165577d355 ]--- > Kernel panic - not syncing: Fatal exception in interrupt > [<c00298fc>] (unwind_backtrace+0x0/0xe4) from [<c0295e1c>] > (dump_stack+0x18/0x1c) [<c0295e1c>] (dump_stack+0x18/0x1c) from > [<c0295e84>] (panic+0x64/0x18c) [<c0295e84>] (panic+0x64/0x18c) from > [<c002842c>] (die+0x300/0x358) [<c002842c>] (die+0x300/0x358) from > [<c002c294>] (__do_kernel_fault+0x6c/0x90) [<c002c294>] > (__do_kernel_fault+0x6c/0x90) from [<c002c508>] > (do_page_fault+0x250/0x270) [<c002c508>] (do_page_fault+0x250/0x270) from > [<c0024214>] (do_DataAbort+0x38/0xa0) [<c0024214>] > (do_DataAbort+0x38/0xa0) from [<c0024b2c>] (__dabt_svc+0x4c/0x60) > Exception stack(0xc3897b20 to 0xc3897b68) > 7b20: 00000004 00000103 00000000 c3896000 a0000013 00000000 00000000 > c30f0da8 7b40: 0000000a c381f3e0 c4806000 c3897b84 c3897b68 c3897b68 > c0036b6c c0036b6c 7b60: 80000093 ffffffff > [<c0024b2c>] (__dabt_svc+0x4c/0x60) from [<c0036b6c>] (complete+0x28/0x7c) > [<c0036b6c>] (complete+0x28/0x7c) from [<c01e9b0c>] > (spi_complete+0x10/0x14) [<c01e9b0c>] (spi_complete+0x10/0x14) from > [<c01eac2c>] (giveback+0x114/0x12c) [<c01eac2c>] (giveback+0x114/0x12c) > from [<c01eb60c>] (pump_transfers+0x13c/0x6f8) [<c01eb60c>] > (pump_transfers+0x13c/0x6f8) from [<c0044924>] (tasklet_action+0x90/0xf0) > [<c0044924>] (tasklet_action+0x90/0xf0) from [<c0044eb8>] > (__do_softirq+0x98/0x138) [<c0044eb8>] (__do_softirq+0x98/0x138) from > [<c00453a0>] (irq_exit+0x4c/0xa8) [<c00453a0>] (irq_exit+0x4c/0xa8) from > [<c002406c>] (asm_do_IRQ+0x6c/0x8c) [<c002406c>] (asm_do_IRQ+0x6c/0x8c) > from [<c0024b84>] (__irq_svc+0x44/0xcc) Exception stack(0xc3897c78 to > 0xc3897cc0) > 7c60: 4022d320 > 4022e000 7c80: 08000075 00001000 c32273c0 c03ce1c0 c2b49b78 4022d000 > c2b420b4 00000001 7ca0: 00000000 c3897cfc 00000000 c3897cc0 c00afc54 > c002edd8 00000013 ffffffff [<c0024b84>] (__irq_svc+0x44/0xcc) from > [<c002edd8>] (xscale_flush_user_cache_range+0x18/0x3c) [<c002edd8>] > (xscale_flush_user_cache_range+0x18/0x3c) from [<c00affd8>] > (try_to_unmap_file+0x98/0x4ec) [<c00affd8>] (try_to_unmap_file+0x98/0x4ec) > from [<c00b07ac>] (try_to_unmap+0x40/0x60) [<c00b07ac>] > (try_to_unmap+0x40/0x60) from [<c009b940>] (shrink_page_list+0x2a8/0x8cc) > [<c009b940>] (shrink_page_list+0x2a8/0x8cc) from [<c009c448>] > (shrink_inactive_list+0x218/0x344) [<c009c448>] > (shrink_inactive_list+0x218/0x344) from [<c009c8f8>] > (shrink_zone+0x384/0x4ac) [<c009c8f8>] (shrink_zone+0x384/0x4ac) from > [<c009ceb0>] (kswapd+0x490/0x7d0) [<c009ceb0>] (kswapd+0x490/0x7d0) from > [<c0059be0>] (kthread+0x90/0x98) [<c0059be0>] (kthread+0x90/0x98) from > [<c00258d8>] (kernel_thread_exit+0x0/0x8) > > > My config: > http://www.penguin.cz/~utx/zaurus/feed/images/spitz/config-3.0.0-rc4+-spitz > > Only small ads7846 patch was applied on top of it: > http://www.penguin.cz/~utx/zaurus/feed/images/spitz/zImage-3.0.0-rc4+-spitz > .diff -- 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