共 105 篇文章。
I have enabled PREEMPTION, FULL_PREEMPTION with ULE. Now I get strange result here:
It seems that ts->ts_lockobj was touched by sched_lend_prio, for unknown reasons. Maybe there is some lock releases?
调试能力明显下降了，本来早就应该想到的，结果整整花了一个钟头才找到故障点，老了，明明看到堆栈毁了的居然还去相信调试器：（
Finally I caught the kernel panic caused by some strange bugs found in thread scheduling. Investigating the crashdump.
I started the work almost four months ago, but I have lost all my work last month. Therefore, I’m trying to integrate as much as possible whenever possible. The current workflow is:
Sigh, I got this:
This doesn’t seem to be possible to my best of knowledge. What happend?
It’s 5.3-RELEASE-p2, and the panic string was: panic: pmap_enter: invalid page directory pdir=0xc1e063, va=0xffc00000
When I have loaded drm/radeon, my laptop will reboot right after X11 is going to start. Not known why this time… :-(
I have ported Matt’s patch to 4-STABLE however Matthew Seaman reports that there is still panic, while different, after the patch and I believe I should port Matt’s VM post-morti diagnostic tools to HEAD.
I have been suffered by the speed of GNOME because it usually gets “jitter”.
It seems that marcus@ have the same problem. I have tried HZ=100 but it seems that nothing was changed. Then I have disabled ACPI and it seems the issue was worked around.
What happend in ACPI, so? Still under investigate.
Matt has committed a critical VM fix and kindly reminded that FreeBSD has also the issue. I have ported the patch here and requested a review by Dr. Alan Cox. I’d like to commit it at once it is approved.
I have started to clean up certain code of FreeBSD userland I interest or use at company, to make them WARNS=6 clean. A patchset separated by categories would be posted on my home directory at freefall right after I have a preliminary test.
Ruslan has suggested that I should have used ``make universe’’ to test my patches and I’ll try this on some 1750 boxes - my laptop is too slow and its hard disk is too small to finish a full make universe build :-)