[Intel-gfx] intel-drm-nightly: hang and black screen on i830

[Thomas Richter]

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