[Xnv-team] [OpenIndiana Distribution - Bug #1625] Xorg hang (100% CPU), nvidia-related

[illumos project]

Issue #1625 has been updated by Ken Mays.


Best to install Solaris 11 on one of your test machines and try to reduplicate your hardware issue from there using the default Nvidia driver (280.13). You can also try to install the newer Nvidia 295.33 driver on oi_151a2 on your other test system. This will give you two different test baselines to work from and help isolate the issue. Solaris 11 is more resilient with IRQ issues so try that first if updating to the Nvidia 295.33 driver does not work for you.
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Bug #1625: Xorg hang (100% CPU), nvidia-related
https://www.illumos.org/issues/1625

Author: Marion Hakanson
Status: Closed
Priority: Low
Assignee: OI XNV
Category: XNV (X Window System)
Target version: oi_151_stable
Difficulty: Hard
Tags: nvidia


This Xorg hang is happening on two of my systems. Both run OI-151a now, and both have the nVidia driver version 280.13. The problem also happened under OI-148 with the same nVidia driver, and with several previous driver revisions (I download them directly from the nVidia site). One machine is 64-bit Intel Core i7 w/8GB RAM, GeForce 7300GT; The other is 32-bit Intel P4 w/2GB RAM, GeForce 6200.

When the problem occurs, mouse and keyboard input are ignored, but one can log remotely. You see the Xorg process using 100% CPU. Actually it shows in "prstat -m" as 33% USR, 33% LCK, 33% SLP. Usually restarting gdm is not sufficient, I think the nVidia card or driver is in an unhappy state, with some blocks of black & white bars on the screen after Xorg exits, so I usually just reboot the system.

Also, the Xorg.0.log shows entries like the ones below at the end, prior to killing the Xorg process:

(WW) Oct 04 10:24:40 NVIDIA: WAIT (2, 6, 0x8000, 0x0000c290, 0x0000ca08)
(WW) Oct 04 10:24:47 NVIDIA: WAIT (1, 6, 0x8000, 0x0000c290, 0x0000ca08)
. . .

At the same time, this shows up in /var/adm/messages:

Oct 4 10:24:44 kyklops nvidia: [ID 702911 kern.notice] NVRM: Xid (0000:01:00): 16, Head 00000000 Count 00fdd77b
Oct 4 10:24:44 kyklops nvidia: [ID 702911 kern.notice] NVRM: Xid (0000:01:00): 16, Head 00000001 Count 00fdd74c
Oct 4 10:24:52 kyklops nvidia: [ID 702911 kern.notice] NVRM: Xid (0000:01:00): 16, Head 00000000 Count 00fdd77c
Oct 4 10:24:52 kyklops nvidia: [ID 702911 kern.notice] NVRM: Xid (0000:01:00): 16, Head 00000001 Count 00fdd74d
Oct 4 10:24:53 kyklops nvidia: [ID 702911 kern.notice] NVRM: Xid (0000:01:00): 8, Channel 0000001e
Oct 4 10:25:02 kyklops nvidia: [ID 702911 kern.notice] NVRM: Xid (0000:01:00): 8, Channel 00000020
Oct 4 10:25:02 kyklops nvidia: [ID 702911 kern.notice] NVRM: Xid (0000:01:00): 16, Head 00000000 Count 00fdd77e
Oct 4 10:25:02 kyklops nvidia: [ID 702911 kern.notice] NVRM: Xid (0000:01:00): 16, Head 00000001 Count 00fdd74f

Note that the problem is difficult to replicate on demand. It seems to happen at random times, and probably at or near the time of a window focus change. It does not appear to be necessary to be viewing flash video or a web page, or using any particular X application. I do have "compiz" window-manager effects enabled.

Let me know what kind of debug information I can collect, and how.



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