Bug 815577 - F16: Nouveau fails on reboot but OK on power-cycle - using NVS-295 - later soft lockup
F16: Nouveau fails on reboot but OK on power-cycle - using NVS-295 - later so...
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-nouveau (Show other bugs)
x86_64 Linux
unspecified Severity medium
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Assigned To: Ben Skeggs
Fedora Extras Quality Assurance
Depends On:
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Reported: 2012-04-23 19:20 EDT by Charles Butterfield
Modified: 2013-02-13 07:50 EST (History)
8 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2013-02-13 07:50:22 EST
Type: Bug
Regression: ---
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Documentation: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Powerup (good) /var/log/messages (116.83 KB, application/octet-stream)
2012-04-23 19:20 EDT, Charles Butterfield
no flags Details
Reboot(bad) /var/log/messages (526.19 KB, application/octet-stream)
2012-04-23 19:21 EDT, Charles Butterfield
no flags Details

  None (edit)
Description Charles Butterfield 2012-04-23 19:20:38 EDT
Created attachment 579717 [details]
Powerup (good) /var/log/messages

Description of problem: When rebooting the system, the nouveau driver fails in a manner that does NOT occur if the system is started from a power-off state (even briefly).  Smells like the NVS-295 hardware being in a different state (i.e. not reset by power off) is confusing the nouveau boot logic.

Version-Release number of selected component (if applicable):
kernel = 3.3.2-1.fc16.x86_64
xorg-x11-drv-nouveau.x86_64 = 1:0.0.16-27.20110720gitb806e3f.fc16

How reproducible: Quite repeatable

Steps to Reproduce:
1. Boot Fedora-16 from power-off, wait until up
2. Issue reboot command
Actual results:
On reboot, display usually (always???) freezes after "Loading initial ramdisk ...".  The display adapter switches from big font to smaller font (no change in the two lines displayed) and that's all we see on the console.  The system does continue to boot though and is accessible via SSH.

Expected results: Some better

Additional info:
The first OOPS logged to /var/log/messages occurs after 134 seconds (see below).  This is quite a while after things have become obviously bad to the human observer.  I have attached both a reboot(bad) and powerup(good) subset of /var/log/messages.  Some of the hardware driven behavior (especially network devices) starts to follow a different execution order after 2-3 seconds.

In the "reboot" case the nouveau driver get initialized 2 seconds later (at 5 seconds rather than 3) and then everything seems to stall out for 60 seconds, unlike the "powerup" case where things proceed without a 60 second pause.

Around 135 seconds the first warning is issued (detected in nv50_display_flip_stop).  Later warnings are marked tainted.

I SSH'ed into the system and eventually did "poweroff -f", which resulted in a series of "BUG: soft lockup - CPU#0 stuck for 23s! [poweroff:3143]" (also visible on the SSH client), until I got bored and powercycled the machine.

---------- First Warning in /var/log/messages ---------------------

Apr 23 15:38:25 pc-110-cb kernel: [  134.973839] ------------[ cut here ]------------
Apr 23 15:38:25 pc-110-cb kernel: [  134.973862] WARNING: at drivers/gpu/drm/nouveau/nv50_display.c:414 nv50_display_flip_stop+0x221/0x4f0 [nouveau]()
Apr 23 15:38:25 pc-110-cb kernel: [  134.973864] Hardware name: Precision WorkStation T3500
Apr 23 15:38:25 pc-110-cb kernel: [  134.973866] Modules linked in: ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast xt_comment nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack vhost_net macvtap macvlan tun virtio_net kvm_intel kvm snd_hda_codec_analog iTCO_wdt joydev i2c_i801 iTCO_vendor_support uinput serio_raw ppdev parport_pc dell_wmi parport sparse_keymap snd_hda_intel snd_hda_codec snd_hwdep i7core_edac edac_core tg3 snd_seq snd_seq_device snd_pcm snd_timer snd soundcore snd_page_alloc microcode dcdbas nfsd lockd nfs_acl auth_rpcgss sunrpc raid1 nouveau ttm drm_kms_helper drm i2c_core mxm_wmi video wmi [last unloaded: scsi_wait_scan]
Apr 23 15:38:25 pc-110-cb kernel: [  134.973895] Pid: 212, comm: plymouthd Not tainted 3.3.2-1.fc16.x86_64 #1
Apr 23 15:38:25 pc-110-cb kernel: [  134.973897] Call Trace:
Apr 23 15:38:25 pc-110-cb kernel: [  134.973903]  [<ffffffff81057abf>] warn_slowpath_common+0x7f/0xc0
Apr 23 15:38:25 pc-110-cb kernel: [  134.973906]  [<ffffffff81057b1a>] warn_slowpath_null+0x1a/0x20
Apr 23 15:38:25 pc-110-cb kernel: [  134.973917]  [<ffffffffa011c3e1>] nv50_display_flip_stop+0x221/0x4f0 [nouveau]
Apr 23 15:38:25 pc-110-cb kernel: [  134.973928]  [<ffffffffa01150fe>] nv50_crtc_mode_set_base+0x2e/0x80 [nouveau]
Apr 23 15:38:25 pc-110-cb kernel: [  134.973933]  [<ffffffffa007cfb8>] drm_crtc_helper_set_config+0x778/0xb10 [drm_kms_helper]
Apr 23 15:38:25 pc-110-cb kernel: [  134.973943]  [<ffffffffa003e257>] drm_mode_setcrtc+0x127/0x480 [drm]
Apr 23 15:38:25 pc-110-cb kernel: [  134.973950]  [<ffffffffa002f464>] drm_ioctl+0x444/0x510 [drm]
Apr 23 15:38:25 pc-110-cb kernel: [  134.973957]  [<ffffffffa003e130>] ? drm_mode_setplane+0x3b0/0x3b0 [drm]
Apr 23 15:38:25 pc-110-cb kernel: [  134.973961]  [<ffffffff8108fb7d>] ? set_next_entity+0xad/0xd0
Apr 23 15:38:25 pc-110-cb kernel: [  134.973964]  [<ffffffff81193228>] do_vfs_ioctl+0x98/0x550
Apr 23 15:38:25 pc-110-cb kernel: [  134.973967]  [<ffffffff815f2e04>] ? __schedule+0x3c4/0x7b0
Apr 23 15:38:25 pc-110-cb kernel: [  134.973969]  [<ffffffff81193771>] sys_ioctl+0x91/0xa0
Apr 23 15:38:25 pc-110-cb kernel: [  134.973972]  [<ffffffff815fc5a9>] system_call_fastpath+0x16/0x1b
Apr 23 15:38:25 pc-110-cb kernel: [  134.973974] ---[ end trace 7075723de90c731c ]---
Comment 1 Charles Butterfield 2012-04-23 19:21:19 EDT
Created attachment 579718 [details]
Reboot(bad) /var/log/messages
Comment 2 Dave Jones 2012-07-12 11:55:37 EDT
is this still happening with 3.4 ?
Comment 3 Fedora End Of Life 2013-01-16 07:32:03 EST
This message is a reminder that Fedora 16 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 16. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
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Comment 4 Fedora End Of Life 2013-02-13 07:50:26 EST
Fedora 16 changed to end-of-life (EOL) status on 2013-02-12. Fedora 16 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
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