[Nouveau] [Bug 57151] New: repeatable nouveau driver crashes/hangs during resume on Dell Latitude E6510 when drm.debug=14

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=57151

          Priority: medium
            Bug ID: 57151
          Assignee: nouveau at lists.freedesktop.org
           Summary: repeatable nouveau driver crashes/hangs during resume
                    on Dell Latitude E6510 when drm.debug=14
        QA Contact: xorg-team at lists.x.org
          Severity: critical
    Classification: Unclassified
                OS: Linux (All)
          Reporter: karolszk at gmail.com
          Hardware: x86 (IA32)
            Status: NEW
           Version: 7.6 (2010.12)
         Component: Driver/nouveau
           Product: xorg

I've added the following options drm.debug=14 log_buf_len=16M to grub config
and each time resume causes hang in logs appears:

ov 14 23:21:27 karolszk-lap kernel: [  613.414575] Call Trace:
Nov 14 23:21:27 karolszk-lap kernel: [  613.414648]  [<f8f34394>]
nv50_i2c_getscl+0x24/0x30 [nouveau]
Nov 14 23:21:27 karolszk-lap kernel: [  613.414656]  [<f84fb052>]
sclhi+0x42/0x70 [i2c_algo_bit]
Nov 14 23:21:27 karolszk-lap kernel: [  613.414663]  [<f84fb0ad>]
i2c_stop+0x2d/0x50 [i2c_algo_bit]
Nov 14 23:21:27 karolszk-lap kernel: [  613.414671]  [<f84fb83f>]
try_address+0x3f/0x80 [i2c_algo_bit]
Nov 14 23:21:27 karolszk-lap kernel: [  613.414679]  [<f84fb8f0>]
bit_doAddress.isra.7+0x70/0x180 [i2c_algo_bit]
Nov 14 23:21:27 karolszk-lap kernel: [  613.414687]  [<f84fba76>]
bit_xfer+0x76/0x600 [i2c_algo_bit]
Nov 14 23:21:27 karolszk-lap kernel: [  613.414697]  [<c1450f2d>]
i2c_transfer+0x8d/0xc0
Nov 14 23:21:27 karolszk-lap kernel: [  613.414727]  [<f8f34f55>]
nouveau_probe_i2c_addr+0x45/0x50 [nouveau]
Nov 14 23:21:27 karolszk-lap kernel: [  613.414758]  [<f8f36854>]
nouveau_connector_detect+0xc4/0x280 [nouveau]
Nov 14 23:21:27 karolszk-lap kernel: [  613.414769]  [<f8d77820>]
output_poll_execute+0x90/0x180 [drm_kms_helper]
Nov 14 23:21:27 karolszk-lap kernel: [  613.414781]  [<c1072f00>] ?
queue_delayed_work_on+0x20/0x100
Nov 14 23:21:27 karolszk-lap kernel: [  613.414790]  [<c1476816>] ?
do_dbs_timer+0x66/0xc0
Nov 14 23:21:27 karolszk-lap kernel: [  613.414797]  [<c1074a21>]
process_one_work+0x101/0x3a0
Nov 14 23:21:27 karolszk-lap kernel: [  613.414806]  [<c15ae330>] ?
common_interrupt+0x30/0x38
Nov 14 23:21:27 karolszk-lap kernel: [  613.414816]  [<f8d77790>] ?
drm_helper_mode_fill_fb_struct+0x30/0x30 [drm_kms_helper]
Nov 14 23:21:27 karolszk-lap kernel: [  613.414824]  [<c10754e4>]
worker_thread+0x124/0x2d0
Nov 14 23:21:27 karolszk-lap kernel: [  613.414831]  [<c10753c0>] ?
manage_workers.isra.28+0x110/0x110
Nov 14 23:21:27 karolszk-lap kernel: [  613.414839]  [<c10792dd>]
kthread+0x6d/0x80
Nov 14 23:21:27 karolszk-lap kernel: [  613.414846]  [<c1079270>] ?
flush_kthread_worker+0x80/0x80
Nov 14 23:21:27 karolszk-lap kernel: [  613.414853]  [<c15ae33e>]
kernel_thread_helper+0x6/0x10


my machine is Dell Laptop Latitude E6510. 12.04 ubuntu and kernel:

Linux karolszk-lap 3.2.0-32-generic-pae #51-Ubuntu SMP Wed Sep 26 21:54:23 UTC
2012 i686 i686 i386 GNU/Linux

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