However, if I disable firmware.rules, *but* leave persistent_v4l.rules enabled, I still get a crash on boot - probably because udev is trying to probe the hardware before ueventd has started up to handle the firmware request.
[ 4.898886] msm_mctl_dev_open mctl NULL! [ 4.899221] Unable to handle kernel NULL pointer dereference at virtual address 00000238 [ 4.899313] pgd = edf68000 [ 4.899404] [00000238] *pgd=af5cc831, *pte=00000000, *ppte=00000000 [ 4.899710] Internal error: Oops: 17 [#1] PREEMPT SMP ARM [ 4.899801] Modules linked in: [ 4.899984] CPU: 2 Not tainted (3.4.0-1-mako #7-Ubuntu) [ 4.900076] PC is at msm_mctl_dev_close+0x1c/0x164 [ 4.900137] LR is at v4l2_release+0x54/0x74 [ 4.900259] pc : <c04d66d8> lr : <c04b28d4> psr: 60000013 [ 4.900289] sp : edf1bee8 ip : edf1bf18 fp : edf1bf14 [ 4.900442] r10: ee3edd80 r9 : 00000000 r8 : eefec490 [ 4.900534] r7 : ef3c8d00 r6 : 00000010 r5 : ee3edd80 r4 : 00000000 [ 4.900656] r3 : c04d66bc r2 : 00000002 r1 : ee3edd80 r0 : ee3edd80 [ 4.900717] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 4.900839] Control: 10c5787d Table: ae96806a DAC: 00000015 [ 4.900961] [ 4.900961] PC: 0xc04d6658: [ 4.901083] 6658 1afffff6 e594024c ebf1a9b7 e3a03000 e584324c e1a00008 e3e0700b eb0f8442 [ 4.901815] 6678 ea000008 e2855001 eaffffff e5963000 e1550003 3affffd8 e5963000 e5843248 [ 4.902456] 6698 e1a00008 eb0f8438 e1a00007 e89daff8 c0b6408b c0b63c39 c092def1 c0b63c50 [ 4.903128] 66b8 [ 4.903189] [ 4.903189] res_trk_download_firmware(): Request firmware download [ 4.903433] c0b63c69 e1a0c00d e92ddff8 e24cb004 e52de004 e8bd4000 e590407c e1a0a000 [ 4.904104] 66d8 e5945238 e3550000 1a000004 e59f0128 e3e07015 e59f1124 eb0f4d12 ea000044 [ 4.904745] 66f8 e595041c e2858e16 eb0014ae e2849fbf e1a06000 e1a00008 eb0f849f e1a00009 [ 4.905417] 6718 eb0f849d e5953174 e3530001 13a07000 1a000009 e1a00005 eb002052 e2507000 [ 4.906088] 6738 a3a06000 aa000004 e59f10d0 e1a02007 e59f00cc eb0f4cfb ea00002b e3a03000 [ 4.906760] [ 4.906760] LR: 0xc04b2854: [ 4.906882] 2854 e1a00005 e89da878 e3000145 e89da878 e1a0c00d e92dd800 e24cb004 e52de004 [ 4.907584] 2874 e8bd4000 ebf23931 e89da800 e1a0c00d e92dd830 e24cb004 e52de004 e8bd4000 [ 4.908194] 2894 e1a00001 e1a05001 ebffff7e e5903050 e1a04000 e5933024 e3530000 0a00000b [ 4.908805] 28b4 e5900250 e3500000 0a000000 eb101433 e5943050 e1a00005 e5933024 e12fff33 [ 4.909476] 28d4 e5940250 e3500000 0a000000 eb1013a7 e2840058 ebfbcc6b e3a00000 e89da830 [ 4.910148] 28f4 e1a0c00d e92dd878 e24cb004 e52de004 e8bd4000 e1a06000 e1a05001 ebffff61 [ 4.910819] 2914 e5903050 e1a04000 e593301c e3530000 0a000016 e5900250 e3500000 1a000004 [ 4.911490] 2934 e5943220 e3130001 03e05012 0a00000a ea000003 eb101337 e3500000 0afffff7 [ 4.912162] [ 4.912162] SP: 0xedf1be68: [ 4.912284] be68 c08bc3b4 c0096d28 ef08ec40 c04d66d8 60000013 ffffffff edf1bed4 eefec490 [ 4.912955] be88 00000000 ee3edd80 edf1bf14 edf1bea0 c08ba618 c0008364 ee3edd80 ee3edd80 [ 4.913596] bea8 00000002 c04d66bc 00000000 ee3edd80 00000010 ef3c8d00 eefec490 00000000 [ 4.914207] bec8 ee3edd80 edf1bf14 edf1bf18 edf1bee8 c04b28d4 c04d66d8 60000013 ffffffff [ 4.914878] bee8 c04d66bc ef033400 ee3edd80 00000010 ef3c8d00 eefec490 00000000 ee3edd88 [ 4.915550] bf08 edf1bf2c edf1bf18 c04b28d4 c04d66c8 ee3edd80 ef0a94b0 edf1bf64 edf1bf30 [ 4.916191] bf28 c0148514 c04b288c 00000000 00000000 00000073 ee3edd80 00000000 eefee400 [ 4.916862] bf48 ee3edd80 c000e2a8 edf1a000 00000000 edf1bf84 edf1bf68 c01441b0 c0148400 [ 4.917564] [ 4.917564] IP: 0xedf1be98: [ 4.917686] be98 c08ba618 c0008364 ee3edd80 ee3edd80 00000002 c04d66bc 00000000 ee3edd80 [ 4.918327] beb8 00000010 ef3c8d00 eefec490 00000000 ee3edd80 edf1bf14 edf1bf18 edf1bee8 [ 4.918998] bed8 c04b28d4 c04d66d8 60000013 ffffffff c04d66bc ef033400 ee3edd80 00000010 [ 4.919639] bef8 ef3c8d00 eefec490 00000000 ee3edd88 edf1bf2c edf1bf18 c04b28d4 c04d66c8 [ 4.920311] bf18 ee3edd80 ef0a94b0 edf1bf64 edf1bf30 c0148514 c04b288c 00000000 00000000 [ 4.920982] bf38 00000073 ee3edd80 00000000 eefee400 ee3edd80 c000e2a8 edf1a000 00000000 [ 4.921623] bf58 edf1bf84 edf1bf68 c01441b0 c0148400 00000000 00000003 eefee400 eefee440 [ 4.922234] bf78 edf1bfa4 edf1bf88 c014427c c014413c 00011000 00000003 40000000 00000006 [ 4.922905] [ 4.922905] FP: 0xedf1be94: [ 4.923027] be94 edf1bea0 c08ba618 c0008364 ee3edd80 ee3edd80 00000002 c04d66bc 00000000 [ 4.923668] beb4 ee3edd80 00000010 ef3c8d00 eefec490 00000000 ee3edd80 edf1bf14 edf1bf18 [ 4.924339] bed4 edf1bee8 c04b28d4 c04d66d8 60000013 ffffffff c04d66bc ef033400 ee3edd80 [ 4.924980] bef4 00000010 ef3c8d00 eefec490 00000000 ee3edd88 edf1bf2c edf1bf18 c04b28d4 [ 4.925591] bf14 c04d66c8 ee3edd80 ef0a94b0 edf1bf64 edf1bf30 c0148514 c04b288c 00000000 [ 4.926232] bf34 00000000 00000073 ee3edd80 00000000 eefee400 ee3edd80 c000e2a8 edf1a000 [ 4.926842] bf54 00000000 edf1bf84 edf1bf68 c01441b0 c0148400 00000000 00000003 eefee400 [ 4.927483] bf74 eefee440 edf1bfa4 edf1bf88 c014427c c014413c 00011000 00000003 40000000 [ 4.928094] [ 4.928094] R0: 0xee3edd00: [ 4.928277] dd00 00000000 00000000 ee34bd00 00000000 00000000 00000000 00000000 00000020 [ 4.928887] dd20 00000000 00000000 ffffffff ffffffff 00000000 00000000 ee530780 00000000 [ 4.929558] dd40 ee3edd40 ee3edd40 ee3edd48 ee3edd48 ee670f38 00000000 00000000 00000000 [ 4.930138] dd60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 4.930810] dd80 ee3ed3c0 c387e194 eefec490 ef3c8d00 c092c7f8 00000000 00000002 00000000 [ 4.931481] dda0 00020000 0000001d 00000000 00000000 00000000 00000000 00000000 00000000 [ 4.932183] ddc0 00000000 00000000 ee34b900 00000000 00000000 00000000 00000000 00000000 [ 4.932855] dde0 00000000 00000000 ffffffff ffffffff 00000000 00000000 ee405600 00000000 [ 4.933496] [ 4.933496] R1: 0xee3edd00: [ 4.933679] dd00 00000000 00000000 ee34bd00 00000000 00000000 00000000 00000000 00000020 [ 4.934350] dd20 00000000 00000000 ffffffff ffffffff 00000000 00000000 ee530780 00000000 [ 4.935022] dd40 ee3edd40 ee3edd40 ee3edd48 ee3edd48 ee670f38 00000000 00000000 00000000 [ 4.935724] dd60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 4.936395] dd80 ee3ed3c0 c387e194 eefec490 ef3c8d00 c092c7f8 00000000 00000002 00000000 [ 4.937005] dda0 00020000 0000001d 00000000 00000000 00000000 00000000 00000000 00000000 [ 4.937646] ddc0 00000000 00000000 ee34b900 00000000 00000000 00000000 00000000 00000000 [ 4.938348] dde0 00000000 00000000 ffffffff ffffffff 00000000 00000000 ee405600 00000000 [ 4.939020] [ 4.939020] R3: 0xc04d663c: [ 4.939142] 663c e2455001 e7930006 ebf1a9be e594324c e7839006 e3750001 e2466004 1afffff6 [ 4.939783] 665c e594024c ebf1a9b7 e3a03000 e584324c e1a00008 e3e0700b eb0f8442 ea000008 [ 4.940424] 667c e2855001 eaffffff e5963000 e1550003 3affffd8 e5963000 e5843248 e1a00008 [ 4.941065] 669c eb0f8438 e1a00007 e89daff8 c0b6408b c0b63c39 c092def1 c0b63c50 c0b63c69 [ 4.941736] 66bc e1a0c00d e92ddff8 e24cb004 e52de004 e8bd4000 e590407c e1a0a000 e5945238 [ 4.942408] 66dc e3550000 1a000004 e59f0128 e3e07015 e59f1124 eb0f4d12 ea000044 e595041c [ 4.943018] 66fc e2858e16 eb0014ae e2849fbf e1a06000 e1a00008 eb0f849f e1a00009 eb0f849d [ 4.943689] 671c e5953174 e3530001 13a07000 1a000009 e1a00005 eb002052 e2507000 a3a06000 [ 4.944330] [ 4.944330] R5: 0xee3edd00: [ 4.944452] dd00 00000000 00000000 ee34bd00 00000000 00000000 00000000 00000000 00000020 [ 4.945124] dd20 00000000 00000000 ffffffff ffffffff 00000000 00000000 ee530780 00000000 [ 4.945765] dd40 ee3edd40 ee3edd40 ee3edd48 ee3edd48 ee670f38 00000000 00000000 00000000 [ 4.946375] dd60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 4.947047] dd80 ee3ed3c0 c387e194 eefec490 ef3c8d00 c092c7f8 00000000 00000002 00000000 [ 4.947718] dda0 00020000 0000001d 00000000 00000000 00000000 00000000 00000000 00000000 [ 4.948298] ddc0 00000000 00000000 ee34b900 00000000 00000000 00000000 00000000 00000000 [ 4.948908] dde0 00000000 00000000 ffffffff ffffffff 00000000 00000000 ee405600 00000000 [ 4.949580] [ 4.949580] R7: 0xef3c8c80: [ 4.949702] 8c80 00000088 00000004 00000000 c38be320 ef221000 d9d3cd40 00000006 ef3c8ca4 [ 4.950343] 8ca0 ef0a9338 65646976 ef00306f ef3c8ca8 ef3c8cb0 ef3c8cb0 ef3c8b60 ef3c8e10 [ 4.951014] 8cc0 ef23d6f8 ef23d6f8 00000001 001e001e c08d5480 cf708000 00000000 00000000 [ 4.951625] 8ce0 ef3c8ce0 ef3c8ce0 ef3c8c68 ef3c8d68 ef3c8cf0 ef3c8cf0 ef0a93e0 ef0a93e0 [ 4.952235] 8d00 00000088 00000004 00000000 c38be5e0 ef221000 d9d3cdf0 00000006 ef3c8d24 [ 4.952907] 8d20 ef0a94b0 65646976 0000316f c08d50f4 000200da c0dedc08 00000000 ef3c8d3c [ 4.953547] 8d40 ef3c8d3c 00000000 00000002 00150015 c08d5480 cf708000 00000000 00000000 [ 4.954158] 8d60 ef3c8d60 ef3c8d60 ef3c8ce8 ef3c8de8 ef3c8d70 ef3c8d70 ef0a9558 ef0a9558 [ 4.954829] [ 4.954829] R8: 0xeefec410: [ 4.955012] c410 00000000 00000000 00000000 00000020 00000000 00000000 00007131 00000000 [ 4.955623] c430 00000000 00000000 eedcc280 00000000 eefec440 eefec440 eefec448 eefec448 [ 4.956264] c450 ee63d628 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 4.956935] c470 00000000 00000000 00000000 00000000 ee21f540 e2f21718 eec47c00 ee662780 [ 4.957546] c490 ef221000 cf708000 00000020 c0d57fa8 00000001 eefc69ec eefc69ec eead126c [ 4.958217] c4b0 eec47c24 cf708084 e2fe10f4 eefde580 eefc6a00 eefc6640 eefec4c8 eefec4c8 [ 4.958858] c4d0 eefec4d0 eefec4d0 eefec4d8 eefec4d8 eefec4e0 eefec4e0 00000000 e2f206c0 [ 4.959529] c4f0 00000000 00000000 0000000f 00000000 00000000 00000000 00000000 00000000 [ 4.960140] [ 4.960140] R10: 0xee3edd00: [ 4.960292] dd00 00000000 00000000 ee34bd00 00000000 00000000 00000000 00000000 00000020 [ 4.960903] dd20 00000000 00000000 ffffffff ffffffff 00000000 00000000 ee530780 00000000 [ 4.961544] dd40 ee3edd40 ee3edd40 ee3edd48 ee3edd48 ee670f38 00000000 00000000 00000000 [ 4.962215] dd60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 4.962856] dd80 ee3ed3c0 c387e194 eefec490 ef3c8d00 c092c7f8 00000000 00000002 00000000 [ 4.963467] dda0 00020000 0000001d 00000000 00000000 00000000 00000000 00000000 00000000 [ 4.964138] ddc0 00000000 00000000 ee34b900 00000000 00000000 00000000 00000000 00000000 [ 4.964779] dde0 00000000 00000000 ffffffff ffffffff 00000000 00000000 ee405600 00000000 [ 4.965389] Process v4l_id (pid: 556, stack limit = 0xedf1a2f0) [ 4.965450] Stack: (0xedf1bee8 to 0xedf1c000) [ 4.965542] bee0: c04d66bc ef033400 ee3edd80 00000010 ef3c8d00 eefec490 [ 4.965634] bf00: 00000000 ee3edd88 edf1bf2c edf1bf18 c04b28d4 c04d66c8 ee3edd80 ef0a94b0 [ 4.965756] bf20: edf1bf64 edf1bf30 c0148514 c04b288c 00000000 00000000 00000073 ee3edd80 [ 4.965878] bf40: 00000000 eefee400 ee3edd80 c000e2a8 edf1a000 00000000 edf1bf84 edf1bf68 [ 4.965969] bf60: c01441b0 c0148400 00000000 00000003 eefee400 eefee440 edf1bfa4 edf1bf88 [ 4.966091] bf80: c014427c c014413c 00011000 00000003 40000000 00000006 00000000 edf1bfa8 [ 4.966183] bfa0: c000e020 c01441c8 00011000 00000003 00000003 00000001 00000000 00000001 [ 4.966274] bfc0: 00011000 00000003 40000000 00000006 00000000 00000000 4011b000 00000000 [ 4.966336] bfe0: 00000000 be995c84 000085a1 402b698c 60000010 00000003 b01fc821 b01fcc21 [ 4.966488] [<c04d66d8>] (msm_mctl_dev_close+0x1c/0x164) from [<c04b28d4>] (v4l2_release+0x54/0x74) [ 4.966641] [<c04b28d4>] (v4l2_release+0x54/0x74) from [<c0148514>] (fput+0x120/0x234) [ 4.966732] [<c0148514>] (fput+0x120/0x234) from [<c01441b0>] (filp_close+0x80/0x8c) [ 4.966854] [<c01441b0>] (filp_close+0x80/0x8c) from [<c014427c>] (sys_close+0xc0/0xf8) [ 4.966976] [<c014427c>] (sys_close+0xc0/0xf8) from [<c000e020>] (ret_fast_syscall+0x0/0x30) [ 4.967099] Code: e52de004 e8bd4000 e590407c e1a0a000 (e5945238) [ 4.968564] ---[ end trace c1b524d510d4fd81 ]--- [ 4.968686] Kernel panic - not syncing: Fatal exception [ 4.968747] CPU0: stopping [ 4.968838] [<c00154e4>] (unwind_backtrace+0x0/0xec) from [<c08a936c>] (dump_stack+0x20/0x24) [ 4.968960] [<c08a936c>] (dump_stack+0x20/0x24) from [<c00139a4>] (handle_IPI+0x110/0x1e4) [ 4.969082] [<c00139a4>] (handle_IPI+0x110/0x1e4) from [<c0008688>] (gic_handle_irq+0xb8/0xc4) [ 4.969204] [<c0008688>] (gic_handle_irq+0xb8/0xc4) from [<c08ba840>] (__irq_usr+0x40/0x60) [ 4.969265] Exception stack(0xee3e3fb0 to 0xee3e3ff8) [ 4.969388] 3fa0: 005e8d28 00000002 005e8c98 005e8444 [ 4.969449] 3fc0: 005e9000 005e9000 beb35950 00000000 00000004 00000005 00000001 005e8208 [ 4.969571] 3fe0: 00031db8 beb358b8 0001c583 0001c4dc 200f0030 ffffffff [ 4.969662] CPU3: stopping [ 4.969754] [<c00154e4>] (unwind_backtrace+0x0/0xec) from [<c08a936c>] (dump_stack+0x20/0x24) [ 4.969876] [<c08a936c>] (dump_stack+0x20/0x24) from [<c00139a4>] (handle_IPI+0x110/0x1e4) [ 4.969937] [<c00139a4>] (handle_IPI+0x110/0x1e4) from [<c0008688>] (gic_handle_irq+0xb8/0xc4) [ 4.970059] [<c0008688>] (gic_handle_irq+0xb8/0xc4) from [<c08ba840>] (__irq_usr+0x40/0x60) [ 4.970181] Exception stack(0xeecfbfb0 to 0xeecfbff8) [ 4.970242] bfa0: 01fe78a8 00025da8 00000007 00000007 [ 4.970364] bfc0: 01fe77c0 01fe7888 bed660bc 00025da8 fffffffb 00000000 bed66558 bed66673 [ 4.970456] bfe0: 40538010 bed66090 0001bc43 4050eb24 600f0010 ffffffff [ 4.970547] CPU1: stopping [ 4.970669] [<c00154e4>] (unwind_backtrace+0x0/0xec) from [<c08a936c>] (dump_stack+0x20/0x24) [ 4.970730] [<c08a936c>] (dump_stack+0x20/0x24) from [<c00139a4>] (handle_IPI+0x110/0x1e4) [ 4.970853] [<c00139a4>] (handle_IPI+0x110/0x1e4) from [<c0008688>] (gic_handle_irq+0xb8/0xc4) [ 4.970975] [<c0008688>] (gic_handle_irq+0xb8/0xc4) from [<c08ba680>] (__irq_svc+0x40/0x70) [ 4.971097] Exception stack(0xee449dc0 to 0xee449e08) [ 4.971158] 9dc0: ef4d4e4c 00000000 00000000 00000000 ee3ba300 ee449ed8 00000000 eeb4de00 [ 4.971249] 9de0: 00000000 00000000 00000000 ee449e2c ee449df0 ee449e08 c015046c c0145824 [ 4.971371] 9e00: 60000013 ffffffff [ 4.971432] [<c08ba680>] (__irq_svc+0x40/0x70) from [<c0145824>] (nameidata_to_filp+0x4c/0x74) [ 4.971555] [<c0145824>] (nameidata_to_filp+0x4c/0x74) from [<c0154adc>] (do_last+0x820/0x83c) [ 4.971646] [<c0154adc>] (do_last+0x820/0x83c) from [<c0154d00>] (path_openat+0xc8/0x388) [ 4.971768] [<c0154d00>] (path_openat+0xc8/0x388) from [<c01550e4>] (do_filp_open+0x3c/0x88) [ 4.971860] [<c01550e4>] (do_filp_open+0x3c/0x88) from [<c0145938>] (do_sys_open+0xec/0x178) [ 4.971982] [<c0145938>] (do_sys_open+0xec/0x178) from [<c01459f4>] (sys_open+0x30/0x34) [ 4.972073] [<c01459f4>] (sys_open+0x30/0x34) from [<c000e020>] (ret_fast_syscall+0x0/0x30) [ 4.972226] wcnss_8960: crash shutdown : 0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1187189 Title: Kernel crash and reboot when accessing video device To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-mako/+bug/1187189/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
