Hi Alex, Alex Gershgorin wrote:
Hi All,I have problem in booting the Kernel. Here the problematic part of the boot message. As I understand it happens when isp_probe calling and it calls isp->iommu_dev = omap_find_iommu_device("isp"); [ 1.976715] Linux media interface: v0.10 [ 1.981781] Linux video capture interface: v2.00 [ 1.989257] omap3isp omap3isp: Revision 2.0 found [ 1.998138] Unable to handle kernel NULL pointer dereference at virtual address 00000050 [ 2.006683] pgd = c0004000 [ 2.010009] [00000050] *pgd=00000000 [ 2.013793] Internal error: Oops: 5 [#1] [ 2.017913] Modules linked in: [ 2.021148] CPU: 0 Tainted: G W (3.2.0-rc4-00002-g2d47fa7-dirty #1304) [ 2.029296] PC is at klist_next+0x10/0xc4 [ 2.033508] LR is at next_device+0x8/0x14 [ 2.037750] pc : [<c03c032c>] lr : [<c0251e5c>] psr: 60000013 [ 2.037750] sp : c7425eb0 ip : c05e080c fp : 00000000 [ 2.049804] r10: c04b2367 r9 : c058b4f8 r8 : 000003ff [ 2.055297] r7 : 0000000e r6 : 00000000 r5 : c031827c r4 : c7425ed0 [ 2.062164] r3 : c031827c r2 : 00000000 r1 : c7425ed0 r0 : 00000024 [ 2.069000] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [ 2.076690] Control: 10c5387d Table: 80004019 DAC: 00000015 [ 2.082733] Process swapper (pid: 1, stack limit = 0xc74242f0) [ 2.088867] Stack: (0xc7425eb0 to 0xc7426000) [ 2.093444] 5ea0: c031827c c04ae343 c031827c c05d7650 [ 2.102050] 5ec0: 0000000e c0251e5c c031827c c0251ec8 00000024 00000000 c76e8000 000074e0 [ 2.110656] 5ee0: c058b4f0 c030462c 00000000 c01181e4 c058b4f8 c0055f04 00000000 c76e8508 [ 2.119232] 5f00: c74976c0 00000000 c05d4fe4 c058b4f8 c058b52c c05d4fe4 c05d4fe4 00000000 [ 2.127838] 5f20: 00000000 00000000 00000000 c0252784 c0252770 c02515e4 00000000 c058b4f8 [ 2.136444] 5f40: c058b52c c05d4fe4 00000000 c0251708 c05d4fe4 c02516a0 00000000 c0250e20 [ 2.145050] 5f60: c7420058 c7481490 c05d4fe4 c76c9140 c05c45d0 c0250768 c04ae33e 00000000 [ 2.153656] 5f80: c7423340 c05d4fe4 c056e4cc c000dbfc 00000000 00000000 00000000 c0251d20 [ 2.162231] 5fa0: c0583210 c056e4cc c000dbfc 00000000 00000000 c000857c c0582dd0 00003539 [ 2.170837] 5fc0: 00000000 c0000000 00000013 c0583210 c0582dd0 c000dbfc 00000013 00000000 [ 2.179443] 5fe0: 00000000 c0553204 c7423340 00000000 c0553194 c000dbfc bf0285ff fb000400 [ 2.188049] [<c03c032c>] (klist_next+0x10/0xc4) from [<c0251e5c>] (next_device+0x8/0x14) [ 2.196563] [<c0251e5c>] (next_device+0x8/0x14) from [<c0251ec8>] (driver_find_device+0x60/0x78) [ 2.205841] [<c0251ec8>] (driver_find_device+0x60/0x78) from [<c030462c>] (isp_probe+0x238/0xa5c) [ 2.215179] [<c030462c>] (isp_probe+0x238/0xa5c) from [<c0252784>] (platform_drv_probe+0x14/0x18) [ 2.224517] [<c0252784>] (platform_drv_probe+0x14/0x18) from [<c02515e4>] (driver_probe_device+0xc8/0x184) [ 2.234680] [<c02515e4>] (driver_probe_device+0xc8/0x184) from [<c0251708>] (__driver_attach+0x68/0x8c) [ 2.244567] [<c0251708>] (__driver_attach+0x68/0x8c) from [<c0250e20>] (bus_for_each_dev+0x48/0x74) [ 2.254058] [<c0250e20>] (bus_for_each_dev+0x48/0x74) from [<c0250768>] (bus_add_driver+0xa0/0x21c) [ 2.263580] [<c0250768>] (bus_add_driver+0xa0/0x21c) from [<c0251d20>] (driver_register+0xa4/0x130) [ 2.273101] [<c0251d20>] (driver_register+0xa4/0x130) from [<c000857c>] (do_one_initcall+0x98/0x16c) [ 2.282714] [<c000857c>] (do_one_initcall+0x98/0x16c) from [<c0553204>] (kernel_init+0x70/0x118) [ 2.291992] [<c0553204>] (kernel_init+0x70/0x118) from [<c000dbfc>] (kernel_thread_exit+0x0/0x8) [ 2.301208] Code: e92d40f8 e1a04000 e5900000 e5946004 (e590702c) [ 2.307708] ---[ end trace 1b75b31a2719ed1e ]--- [ 2.312652] Kernel panic - not syncing: Attempted to kill init! I will appreciate any help.
Just a stupid question... do you have CONFIG_OMAP_IOMMU and CONFIG_OMAP_IOVMM enabled? This is a known problem; the real fix involves using dmabuf instead of the IOMMU/IOVMM API.
Regards, -- Sakari Ailus sakari.ai...@iki.fi -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
