intel-drm-nightly: hang and black screen on i830

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Hi Daniel, hi folks,

back from a couple of business trips, so finally some time to look into the i830 support on this old laptop.

Sorry to say that the current drm-nightly does not work at all. It just generates a hang, resulting in a black screen and nothing else. All you can do there is to turn the machine off the hard way.

Here is what I get in the kernel log: Probably intel_modeset_setup_hw_state hangs? Hard to say.

Dec 19 14:38:50 tyleet kernel: [ 240.296074] INFO: task modprobe:439 blocked for more than 120 seconds. Dec 19 14:38:50 tyleet kernel: [ 240.296091] Not tainted 3.13.0-rc3+ #2 Dec 19 14:38:50 tyleet kernel: [ 240.296097] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Dec 19 14:38:50 tyleet kernel: [ 240.296104] modprobe D f6145bc0 0 439 375 0x00000004 Dec 19 14:38:50 tyleet kernel: [ 240.296117] f60b0360 00000082 c1302256 f6145bc0 f6145ba6 00000002 00000000 f60b0360 Dec 19 14:38:50 tyleet kernel: [ 240.296132] f84c3771 f84c3771 f84c73a3 f84c73a4 c11803c1 00000001 00000000 c103ff02 Dec 19 14:38:50 tyleet kernel: [ 240.296147] 00004e0a f061ffff f84affff f84c376e 00000000 f84c73a3 02145b48 f84c73c0
Dec 19 14:38:50 tyleet kernel: [  240.296161] Call Trace:
Dec 19 14:38:50 tyleet kernel: [ 240.296181] [<c1302256>] ? __schedule+0x166/0x410 Dec 19 14:38:50 tyleet kernel: [ 240.296218] [<c11803c1>] ? vsnprintf+0xd1/0x5c0 Dec 19 14:38:50 tyleet kernel: [ 240.296233] [<c103ff02>] ? do_sigaction+0x62/0x160 Dec 19 14:38:50 tyleet kernel: [ 240.296268] [<f84affff>] ? drm_mode_gamma_get_ioctl+0xbf/0xe0 [drm] Dec 19 14:38:50 tyleet kernel: [ 240.296285] [<c13026a5>] ? schedule_preempt_disabled+0x5/0x10 Dec 19 14:38:50 tyleet kernel: [ 240.296296] [<c13035bb>] ? __mutex_lock_slowpath+0x4b/0x7a Dec 19 14:38:50 tyleet kernel: [ 240.296306] [<c1303123>] ? mutex_lock+0x13/0x15 Dec 19 14:38:50 tyleet kernel: [ 240.296422] [<f8dc5b12>] ? intel_get_load_detect_pipe+0x152/0x3e0 [i915] Dec 19 14:38:50 tyleet kernel: [ 240.296515] [<f8de59a4>] ? intel_update_watermarks+0x14/0x20 [i915] Dec 19 14:38:50 tyleet kernel: [ 240.296585] [<f8dba9ee>] ? i9xx_crtc_disable+0x19e/0x2f0 [i915] Dec 19 14:38:50 tyleet kernel: [ 240.296658] [<f8dc79ef>] ? intel_modeset_setup_hw_state+0xadf/0xb90 [i915] Dec 19 14:38:50 tyleet kernel: [ 240.296676] [<c1300001>] ? remove_waiter+0x9d/0xd3 Dec 19 14:38:50 tyleet kernel: [ 240.296759] [<f8df6d00>] ? gen4_write16+0x20/0x20 [i915] Dec 19 14:38:50 tyleet kernel: [ 240.296817] [<f8d92b40>] ? i915_semaphore_is_enabled+0x50/0x50 [i915] Dec 19 14:38:50 tyleet kernel: [ 240.296888] [<f8dc7ac6>] ? intel_modeset_gem_init+0x26/0x30 [i915] Dec 19 14:38:50 tyleet kernel: [ 240.296947] [<f8d95dea>] ? i915_driver_load+0xcca/0xe60 [i915] Dec 19 14:38:50 tyleet kernel: [ 240.297004] [<f8d932d0>] ? i915_dma_init+0x2e0/0x2e0 [i915] Dec 19 14:38:50 tyleet kernel: [ 240.297034] [<c1213709>] ? device_add+0x159/0x510 Dec 19 14:38:50 tyleet kernel: [ 240.297071] [<f84a5f63>] ? drm_dev_register+0x83/0x1b0 [drm] Dec 19 14:38:50 tyleet kernel: [ 240.297095] [<f84a7b88>] ? drm_get_pci_dev+0x88/0x140 [drm] Dec 19 14:38:50 tyleet kernel: [ 240.297113] [<c111cf59>] ? sysfs_do_create_link_sd.isra.5+0x99/0x1b0 Dec 19 14:38:50 tyleet kernel: [ 240.297126] [<c11a17ef>] ? pci_device_probe+0x7f/0xd0 Dec 19 14:38:50 tyleet kernel: [ 240.297138] [<c1215e30>] ? driver_probe_device+0x1f0/0x1f0 Dec 19 14:38:50 tyleet kernel: [ 240.297148] [<c111d08d>] ? sysfs_create_link+0x1d/0x40 Dec 19 14:38:50 tyleet kernel: [ 240.297159] [<c1215e30>] ? driver_probe_device+0x1f0/0x1f0 Dec 19 14:38:50 tyleet kernel: [ 240.297169] [<c1215c93>] ? driver_probe_device+0x53/0x1f0 Dec 19 14:38:50 tyleet kernel: [ 240.297180] [<c1179ed8>] ? kobject_add_internal+0x158/0x210 Dec 19 14:38:50 tyleet kernel: [ 240.297191] [<c1215ea9>] ? __driver_attach+0x79/0x80 Dec 19 14:38:50 tyleet kernel: [ 240.297204] [<c1214698>] ? bus_for_each_dev+0x38/0x70 Dec 19 14:38:50 tyleet kernel: [ 240.297214] [<c1215876>] ? driver_attach+0x16/0x20 Dec 19 14:38:50 tyleet kernel: [ 240.297223] [<c1215e30>] ? driver_probe_device+0x1f0/0x1f0 Dec 19 14:38:50 tyleet kernel: [ 240.297232] [<c1215521>] ? bus_add_driver+0xe1/0x1e0 Dec 19 14:38:50 tyleet kernel: [ 240.297244] [<c1216401>] ? driver_register+0x51/0xd0
Dec 19 14:38:50 tyleet kernel: [  240.297266]  [<f8e2d000>] ? 0xf8e2cfff
Dec 19 14:38:50 tyleet kernel: [  240.297277]  [<f8e2d000>] ? 0xf8e2cfff
Dec 19 14:38:50 tyleet kernel: [ 240.297287] [<c1000462>] ? do_one_initcall+0xe2/0x130 Dec 19 14:38:50 tyleet kernel: [ 240.297297] [<c1303118>] ? mutex_lock+0x8/0x15 Dec 19 14:38:50 tyleet kernel: [ 240.297308] [<c1093a55>] ? jump_label_module_notify+0x155/0x1a0 Dec 19 14:38:50 tyleet kernel: [ 240.297322] [<c104e890>] ? notifier_call_chain+0x40/0x60 Dec 19 14:38:50 tyleet kernel: [ 240.297335] [<c104eadb>] ? __blocking_notifier_call_chain+0x4b/0x70 Dec 19 14:38:50 tyleet kernel: [ 240.297348] [<c107c988>] ? load_module+0x1a18/0x2160 Dec 19 14:38:50 tyleet kernel: [ 240.297369] [<c102d920>] ? vmalloc_sync_all+0xd0/0xd0 Dec 19 14:38:50 tyleet kernel: [ 240.297381] [<c107d161>] ? SyS_init_module+0x91/0xd0 Dec 19 14:38:50 tyleet kernel: [ 240.297403] [<c130489e>] ? sysenter_do_call+0x12/0x26

Dec 19 14:38:50 tyleet kernel: [ 240.297412] INFO: task modprobe:449 blocked for more than 120 seconds. Dec 19 14:38:50 tyleet kernel: [ 240.297419] Not tainted 3.13.0-rc3+ #2 Dec 19 14:38:50 tyleet kernel: [ 240.297425] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Dec 19 14:38:50 tyleet kernel: [ 240.297430] modprobe D f6831c40 0 449 393 0x00000004 Dec 19 14:38:50 tyleet kernel: [ 240.297441] f61c0d80 00000086 c111bd5a f6831c40 f627e600 f627e600 c111c3ce f61c0d80 Dec 19 14:38:50 tyleet kernel: [ 240.297456] c111c2d6 f627e600 00000001 f609ca40 c111c553 f627e600 f6831c40 f627e600 Dec 19 14:38:50 tyleet kernel: [ 240.297470] f627e600 00000000 f6831c40 f62faea0 c111c653 00000000 f62faea0 00000000
Dec 19 14:38:50 tyleet kernel: [  240.297484] Call Trace:
Dec 19 14:38:50 tyleet kernel: [ 240.297496] [<c111bd5a>] ? sysfs_link_sibling+0x6a/0xb0 Dec 19 14:38:50 tyleet kernel: [ 240.297506] [<c111c3ce>] ? __sysfs_add_one+0x4e/0xf0 Dec 19 14:38:50 tyleet kernel: [ 240.297516] [<c111c2d6>] ? sysfs_new_dirent+0x46/0xe0 Dec 19 14:38:50 tyleet kernel: [ 240.297526] [<c111c553>] ? sysfs_addrm_finish+0x13/0xb0 Dec 19 14:38:50 tyleet kernel: [ 240.297536] [<c111c653>] ? create_dir+0x63/0xa0 Dec 19 14:38:50 tyleet kernel: [ 240.297546] [<c13026a5>] ? schedule_preempt_disabled+0x5/0x10 Dec 19 14:38:50 tyleet kernel: [ 240.297556] [<c13035bb>] ? __mutex_lock_slowpath+0x4b/0x7a Dec 19 14:38:50 tyleet kernel: [ 240.297567] [<c1215e30>] ? driver_probe_device+0x1f0/0x1f0 Dec 19 14:38:50 tyleet kernel: [ 240.297577] [<c1303123>] ? mutex_lock+0x13/0x15 Dec 19 14:38:50 tyleet kernel: [ 240.297586] [<c1215e76>] ? __driver_attach+0x46/0x80 Dec 19 14:38:50 tyleet kernel: [ 240.297598] [<c1214698>] ? bus_for_each_dev+0x38/0x70 Dec 19 14:38:50 tyleet kernel: [ 240.297608] [<c1215876>] ? driver_attach+0x16/0x20 Dec 19 14:38:50 tyleet kernel: [ 240.297617] [<c1215e30>] ? driver_probe_device+0x1f0/0x1f0 Dec 19 14:38:50 tyleet kernel: [ 240.297626] [<c1215521>] ? bus_add_driver+0xe1/0x1e0 Dec 19 14:38:50 tyleet kernel: [ 240.297638] [<c1216401>] ? driver_register+0x51/0xd0
Dec 19 14:38:50 tyleet kernel: [  240.297649]  [<f8070000>] ? 0xf806ffff
Dec 19 14:38:50 tyleet kernel: [ 240.297659] [<c1000462>] ? do_one_initcall+0xe2/0x130 Dec 19 14:38:50 tyleet kernel: [ 240.297668] [<c1303118>] ? mutex_lock+0x8/0x15 Dec 19 14:38:50 tyleet kernel: [ 240.297678] [<c1093a55>] ? jump_label_module_notify+0x155/0x1a0 Dec 19 14:38:50 tyleet kernel: [ 240.297689] [<c104e890>] ? notifier_call_chain+0x40/0x60 Dec 19 14:38:50 tyleet kernel: [ 240.297702] [<c104eadb>] ? __blocking_notifier_call_chain+0x4b/0x70 Dec 19 14:38:50 tyleet kernel: [ 240.297713] [<c107c988>] ? load_module+0x1a18/0x2160 Dec 19 14:38:50 tyleet kernel: [ 240.297730] [<c102d920>] ? vmalloc_sync_all+0xd0/0xd0 Dec 19 14:38:50 tyleet kernel: [ 240.297741] [<c107d161>] ? SyS_init_module+0x91/0xd0 Dec 19 14:38:50 tyleet kernel: [ 240.297761] [<c130489e>] ? sysenter_do_call+0x12/0x26

Greetings,
    Thomas

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