Avast 6.0.1203 - BSOD

Avast Free Antivirus / Premium Security
1

Acer Veriton 6800
Width Windows Xp SP3

Mini Dump’s

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Dump File         : Mini071311-01.dmp
Crash Time        : 13-07-2011 11:25:53
Bug Check String  : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code    : 0x10000050
Parameter 1       : 0xffffffe1
Parameter 2       : 0x00000000
Parameter 3       : 0xa9cbd1a3
Parameter 4       : 0x00000000
Caused By Driver  : aswMon2.SYS
Caused By Address : aswMon2.SYS+41a3
File Description  : avast! File System Filter Driver for Windows XP
Product Name      : avast! Antivirus System
Company           : AVAST Software
File Version      : 6.0.1203.0
Processor         : 32-bit
Crash Address     : aswMon2.SYS+41a3
Stack Address 1   : aswMon2.SYS+6878
Stack Address 2   : aswMon2.SYS+6ba2
Stack Address 3   : aswMon2.SYS+a34
Computer Name     : 
Full Path         : C:\WINDOWS\Minidump\Mini071311-01.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 2600
Dump File Size    : 81.920
==================================================

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Dump File         : Mini071211-09.dmp
Crash Time        : 12-07-2011 20:39:48
Bug Check String  : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code    : 0x10000050
Parameter 1       : 0xffffffe1
Parameter 2       : 0x00000000
Parameter 3       : 0xa9cbd1a3
Parameter 4       : 0x00000000
Caused By Driver  : aswMon2.SYS
Caused By Address : aswMon2.SYS+41a3
File Description  : avast! File System Filter Driver for Windows XP
Product Name      : avast! Antivirus System
Company           : AVAST Software
File Version      : 6.0.1203.0
Processor         : 32-bit
Crash Address     : aswMon2.SYS+41a3
Stack Address 1   : aswMon2.SYS+6878
Stack Address 2   : aswMon2.SYS+6ba2
Stack Address 3   : aswMon2.SYS+a34
Computer Name     : 
Full Path         : C:\WINDOWS\Minidump\Mini071211-09.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 2600
Dump File Size    : 81.920
==================================================

==================================================
Dump File         : Mini071211-08.dmp
Crash Time        : 12-07-2011 19:54:39
Bug Check String  : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code    : 0x10000050
Parameter 1       : 0xffffffe1
Parameter 2       : 0x00000000
Parameter 3       : 0xa9cab1a3
Parameter 4       : 0x00000000
Caused By Driver  : aswMon2.SYS
Caused By Address : aswMon2.SYS+41a3
File Description  : avast! File System Filter Driver for Windows XP
Product Name      : avast! Antivirus System
Company           : AVAST Software
File Version      : 6.0.1203.0
Processor         : 32-bit
Crash Address     : aswMon2.SYS+41a3
Stack Address 1   : aswMon2.SYS+6878
Stack Address 2   : aswMon2.SYS+6ba2
Stack Address 3   : aswMon2.SYS+a34
Computer Name     : 
Full Path         : C:\WINDOWS\Minidump\Mini071211-08.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 2600
Dump File Size    : 81.920
==================================================

==================================================
Dump File         : Mini071211-07.dmp
Crash Time        : 12-07-2011 19:25:59
Bug Check String  : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code    : 0x10000050
Parameter 1       : 0xffffffe1
Parameter 2       : 0x00000000
Parameter 3       : 0xa9c0c1a3
Parameter 4       : 0x00000000
Caused By Driver  : aswMon2.SYS
Caused By Address : aswMon2.SYS+41a3
File Description  : avast! File System Filter Driver for Windows XP
Product Name      : avast! Antivirus System
Company           : AVAST Software
File Version      : 6.0.1203.0
Processor         : 32-bit
Crash Address     : aswMon2.SYS+41a3
Stack Address 1   : aswMon2.SYS+6878
Stack Address 2   : aswMon2.SYS+6ba2
Stack Address 3   : aswMon2.SYS+a34
Computer Name     : 
Full Path         : C:\WINDOWS\Minidump\Mini071211-07.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 2600
Dump File Size    : 81.920
==================================================

==================================================
Dump File         : Mini071211-06.dmp
Crash Time        : 12-07-2011 19:18:28
Bug Check String  : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code    : 0x10000050
Parameter 1       : 0xffffffe1
Parameter 2       : 0x00000000
Parameter 3       : 0xa9c341a3
Parameter 4       : 0x00000000
Caused By Driver  : aswMon2.SYS
Caused By Address : aswMon2.SYS+41a3
File Description  : avast! File System Filter Driver for Windows XP
Product Name      : avast! Antivirus System
Company           : AVAST Software
File Version      : 6.0.1203.0
Processor         : 32-bit
Crash Address     : aswMon2.SYS+41a3
Stack Address 1   : aswMon2.SYS+6878
Stack Address 2   : aswMon2.SYS+6ba2
Stack Address 3   : aswMon2.SYS+a34
Computer Name     : 
Full Path         : C:\WINDOWS\Minidump\Mini071211-06.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 2600
Dump File Size    : 81.920
==================================================

==================================================
Dump File         : Mini071211-05.dmp
Crash Time        : 12-07-2011 19:05:54
Bug Check String  : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code    : 0x10000050
Parameter 1       : 0xffffffe1
Parameter 2       : 0x00000000
Parameter 3       : 0xa9c4c1a3
Parameter 4       : 0x00000000
Caused By Driver  : aswMon2.SYS
Caused By Address : aswMon2.SYS+41a3
File Description  : avast! File System Filter Driver for Windows XP
Product Name      : avast! Antivirus System
Company           : AVAST Software
File Version      : 6.0.1203.0
Processor         : 32-bit
Crash Address     : aswMon2.SYS+41a3
Stack Address 1   : aswMon2.SYS+685c
Stack Address 2   : aswMon2.SYS+6b86
Stack Address 3   : aswMon2.SYS+a34
Computer Name     : 
Full Path         : C:\WINDOWS\Minidump\Mini071211-05.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 2600
Dump File Size    : 81.920
==================================================

==================================================
Dump File         : Mini071211-04.dmp
Crash Time        : 12-07-2011 11:16:37
Bug Check String  : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code    : 0x10000050
Parameter 1       : 0xffffffe1
Parameter 2       : 0x00000000
Parameter 3       : 0xa9c4c1a3
Parameter 4       : 0x00000000
Caused By Driver  : aswMon2.SYS
Caused By Address : aswMon2.SYS+41a3
File Description  : avast! File System Filter Driver for Windows XP
Product Name      : avast! Antivirus System
Company           : AVAST Software
File Version      : 6.0.1203.0
Processor         : 32-bit
Crash Address     : aswMon2.SYS+41a3
Stack Address 1   : aswMon2.SYS+685c
Stack Address 2   : aswMon2.SYS+6b86
Stack Address 3   : aswMon2.SYS+a34
Computer Name     : 
Full Path         : C:\WINDOWS\Minidump\Mini071211-04.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 2600
Dump File Size    : 81.920
==================================================

==================================================
Dump File         : Mini071211-03.dmp
Crash Time        : 12-07-2011 10:58:22
Bug Check String  : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code    : 0x10000050
Parameter 1       : 0xffffffe1
Parameter 2       : 0x00000000
Parameter 3       : 0xa9c9c1a3
Parameter 4       : 0x00000000
Caused By Driver  : aswMon2.SYS
Caused By Address : aswMon2.SYS+41a3
File Description  : avast! File System Filter Driver for Windows XP
Product Name      : avast! Antivirus System
Company           : AVAST Software
File Version      : 6.0.1203.0
Processor         : 32-bit
Crash Address     : aswMon2.SYS+41a3
Stack Address 1   : aswMon2.SYS+685c
Stack Address 2   : aswMon2.SYS+6b86
Stack Address 3   : aswMon2.SYS+a34
Computer Name     : 
Full Path         : C:\WINDOWS\Minidump\Mini071211-03.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 2600
Dump File Size    : 81.920
==================================================

==================================================
Dump File         : Mini071211-02.dmp
Crash Time        : 12-07-2011 10:41:27
Bug Check String  : PAGE_FAULT_IN_NONPAGED_AREA
Bug Check Code    : 0x10000050
Parameter 1       : 0xffffffe1
Parameter 2       : 0x00000000
Parameter 3       : 0xa9c741a3
Parameter 4       : 0x00000000
Caused By Driver  : aswMon2.SYS
Caused By Address : aswMon2.SYS+41a3
File Description  : avast! File System Filter Driver for Windows XP
Product Name      : avast! Antivirus System
Company           : AVAST Software
File Version      : 6.0.1203.0
Processor         : 32-bit
Crash Address     : aswMon2.SYS+41a3
Stack Address 1   : aswMon2.SYS+685c
Stack Address 2   : aswMon2.SYS+6b86
Stack Address 3   : aswMon2.SYS+a34
Computer Name     : 
Full Path         : C:\WINDOWS\Minidump\Mini071211-02.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 2600
Dump File Size    : 81.920
==================================================

This school have more than 5 Acer 6800 computers with the same problem.
Start BSOD’s after Avast 5

Already tried to send to ftp://ftp.avast.com/incoming/ but it’s locked.

2

hi, compress all minidumps (zip/rar) and send it to kurtin@avast.com
thanks, pk

3

Thanks for the dumps!

your aswMon2.sys driver on your hard driver is corrupted - there’s following byte sequence in your file:
FF 77 E0 push dword ptr [edi+dwGran]
however it should be:
FF 75 E0 push dword ptr [ebp+dwGran]

notice that there is a one bit difference between these 2 instructions:
77 = 00000000 00000000 00000000 01110111
75 = 00000000 00000000 00000000 01110101

please reinstall avast - your corrupted driver should be replaced
BUT do some tests to find out why it happened - check the health of your HDD (see S.M.A.R.T. statistics, etc), CPU temp, etc.

4

Please compress your \Windows\system32\drivers\aswMon2.sys and send me it, I’ll double check it, thanks.

5

Have on my working bench ready to make all tests, two computers with two new hard drives, I also made that assumption, HDD problems, and send them to repair three weeks ago the supplier they just deliver the two machines i’m testing with new hard drives. And the problem persists, this is why I contact, Avast. If remove the program the computers stabilize. Well I’ll send you the file in question. Thanks for your help.

6

I got your aswMon2.sys driver and it seems it’s ok ;D.

so it means that someone had to corrupt this driver in memory!
see which same products you use on those 2 computers, I see there’re several unknown (at least for me) drivers in your system: e.g. int15.sys, OcaFSLoc.sys, osaio.sys, zntport.sys, …

you should start uninstalling suspicious apps from your PC and see if it helps

7

Well the computers arrived with a kind of pre-instalation image of XPSp3 with a lot of software including acer stuff, do to the “excellency” of the Acer support where I live. So now I have a clean install in one of the machines running already Avast 6, with no acer driver’s except for Ethernet chip, so far so good, office showed me an install error in fist run only (rare) after that i’ll fill the system with normal software and test it in school server domain and wait to see if the BSOD comes again.

In other machine I’m installing windbg and testing it again to try to find the bugger… maybe some memory management shit driver…

8

I’d say 99% it’s bad RAM.

9

Not in this case… have at my disposal over 6 set of 512mb swapped them all and tested with memtest.

10

Well, then I would uninstall ALL pre-installed crap.All means all.
It’s unbelievable how many crap comes pre-installed in new computers…
(I don’t have that prob, since I build myself the PCs and install the OS from scratch.)