Bug #2705: panic: assertion "pv->pv_m == p" in pmap_remove_pv_pte - DragonFlyBSD - DragonFlyBSD bugtracker

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Bug #2705

closed

panic: assertion "pv->pv_m == p" in pmap_remove_pv_pte

Added by kaz over 10 years ago. Updated about 10 years ago.

Status:

Closed

Priority:

Normal

Assignee:

Category:

VM subsystem

Target version:

3.9.x

Start date:

08/08/2014

Due date:

% Done:

Estimated time:

Description

A recently-installed machine running a recent git (my hardware had problems with the current release) has been crashing frequently when X is running; it hasn't consistently provided a core dump (maybe I rebooted it too quickly?), but I have two of them (attached). The first (3) was with X running, the second (4) was when I tried to open firefox. Firefox does sometimes open successfully. The crashes are frequent enough I've been keeping it in console.

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core.txt.4 (133 KB) core.txt.4		kaz, 08/08/2014 11:57 AM
core.txt.3 (122 KB) core.txt.3		kaz, 08/08/2014 11:57 AM
info.3 (567 Bytes) info.3		kaz, 08/08/2014 11:57 AM
info.4 (567 Bytes) info.4		kaz, 08/08/2014 11:57 AM
dmesg.txt (10.3 KB) dmesg.txt	dmesg	kaz, 08/09/2014 09:19 AM
pciconf.txt (4.07 KB) pciconf.txt	pciconf -lv	kaz, 08/09/2014 09:19 AM
dmesg.displaycorrupt (10.3 KB) dmesg.displaycorrupt	after corruption	kaz, 08/11/2014 11:32 AM
Xorg.log.displaycorrupt (27 KB) Xorg.log.displaycorrupt	after corruption	kaz, 08/11/2014 11:32 AM
messages.displaycorrupt (4.39 KB) messages.displaycorrupt	after corruption	kaz, 08/11/2014 11:32 AM

Related issues 1 (0 open — 1 closed)

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Updated by jorisgio over 10 years ago

Could you please post a dmesg/pciconf ?

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Updated by kaz over 10 years ago

File dmesg.txt dmesg.txt added
File pciconf.txt pciconf.txt added

dmesg / pciconf attached

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Updated by kaz over 10 years ago

Status changed from New to Closed

This computer just had an episode of all kinds of display corruption (some weird colors on the screen, letters garbled in firefox). I think this is likely a RAM problem. I haven't been able to get all the way through a memtest pass because this old laptop overheats; I'll probably try sticking the RAM in another computer to test it properly. Anyway, I'll reopen this if further investigation suggests it isn't a hardware fault but otherwise this can just be ignored.

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Updated by kaz over 10 years ago

File Xorg.log.displaycorrupt Xorg.log.displaycorrupt added
File dmesg.displaycorrupt dmesg.displaycorrupt added
File messages.displaycorrupt messages.displaycorrupt added

Update: it doesn't seem to be my RAM after all -- I've tried running with either of my DIMMs removed, and the same display corruption occurred in either case. What I'm seeing is mainly letters being replaced with other letters, both in rxvt and firefox, starting soon (but not immediately) after I start up X. It usually locks up shortly after the corruption begins. It has started happening consistently with X running with xf86-video-intel. I'm trying vesa now; no problems so far.

I've attached some logs from after the display corruption begins, although I don't see anything unusual there.

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