Author Topic: nonsensical output in report.txt  (Read 8870 times)

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Avasnti100

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nonsensical output in report.txt
« on: August 09, 2010, 10:55:16 AM »
I see huge nonsensical filecounts in report.txt

With avastgui (Linux home edition 1.3.0) I scanned a folder in my home directory.
It contains two subfolders and two files
One subfolder contains three files
the other subfolder contains two files
Thus:
total folders: 3
total files: 10

The avastgui window reports:
------------------------------------------------
number of scanned files/folders:   15/0
number of infected files:      0
total size of scanned files:      3.8 MiB
------------------------------------------------

the log file report.txt reports:
-------------------------------------------
* avast! Report
* This file is generated automatically
*
* Started on ma 09 aug 2010 10:28:40 CEST
* VPS: 100807-1, 07-08-10
*

Infected files: 450971566080
Total files: 450971566081
Total folders: 450971566081
Total size: 0,0 MiB
-------------------------------------------

REMARKS
1. The values in the log file are completely wrong.
2. the value of "number of scanned files/folders" in avastgui seems to be wrong.

QUESTIONS
1. Are there more users who have this sort of output?
2. Can this problem be solved?


Offline zilog

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Re: nonsensical output in report.txt
« Reply #1 on: August 09, 2010, 11:39:55 AM »
I see huge nonsensical filecounts in report.txt

With avastgui (Linux home edition 1.3.0) I scanned a folder in my home directory.
It contains two subfolders and two files
One subfolder contains three files
the other subfolder contains two files
Thus:
total folders: 3
total files: 10

The avastgui window reports:
------------------------------------------------
number of scanned files/folders:   15/0
number of infected files:      0
total size of scanned files:      3.8 MiB
------------------------------------------------

the log file report.txt reports:
-------------------------------------------
* avast! Report
* This file is generated automatically
*
* Started on ma 09 aug 2010 10:28:40 CEST
* VPS: 100807-1, 07-08-10
*

Infected files: 450971566080
Total files: 450971566081
Total folders: 450971566081
Total size: 0,0 MiB
-------------------------------------------

REMARKS
1. The values in the log file are completely wrong.
2. the value of "number of scanned files/folders" in avastgui seems to be wrong.

QUESTIONS
1. Are there more users who have this sort of output?
2. Can this problem be solved?



This is ocassionally found in the Wx-Widgetised version. Hard to reproduce, valgirnd doesn't identify uninitialised data, and the effect is non-deterministic. Please, could you specify which system do you have, what kernel, and cpu/mem configuration? Just to get a clue.

regards,
pc
May's Law: Software efficiency halves every 18 months, compensating Moore's Law. (David May, INMOS)

Avasnti100

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Re: nonsensical output in report.txt
« Reply #2 on: August 10, 2010, 02:27:59 PM »

Please, could you specify which system do you have, what kernel, and cpu/mem configuration? Just to get a clue.


operating system:
Ubuntu 10.04 LTS
( updated Edubuntu 7 through 8.04 )

kernel:
$ uname -r
2.6.32-23-generic
$ uname -a
2.6.32-23-generic #37-Ubuntu SMP Fri Jun 11 07:54:58 UTC 2010 i686 GNU/Linux

cpu:
$ less /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 107
model name      : AMD Athlon(tm) 64 X2 Dual Core Processor 3600+
stepping        : 1
cpu MHz         : 1908.776
cache size      : 512 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
apicid          : 0
initial apicid  : 0
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch
bogomips        : 3817.55
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc 100mhzsteps

mem:
Two banks of Corsair 1024MB, DDR2
$ lshw -c Memory
  *-memory:0             
       description: System memory
       physical id: 3
       size: 2012MiB
  *-cache:0
       description: L1 cache
       physical id: 0
       size: 128KiB
  *-cache:1
       description: L2 cache
       physical id: 1
       size: 512KiB
  *-memory:1 UNCLAIMED
       description: RAM memory
       product: MCP55 Memory Controller
       vendor: nVidia Corporation
       physical id: 0
       bus info: pci@0000:00:00.0
       version: a1
       width: 32 bits
       clock: 66MHz (15.2ns)
       capabilities: bus_master cap_list
       configuration: latency=0
  *-memory:2 UNCLAIMED
       description: RAM memory
       product: MCP55 Memory Controller
       vendor: nVidia Corporation
       physical id: 1.2
       bus info: pci@0000:00:01.2
       version: a2
       width: 32 bits
       clock: 66MHz (15.2ns)
       configuration: latency=0

Offline zilog

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Re: nonsensical output in report.txt
« Reply #3 on: August 11, 2010, 10:44:55 AM »
And, is the result the same, when you run it under different user, or when runnuing it under strace/gdb? I spotted this flaw once or twice, but I was unable to reproduce it in a deterministic manner, to be able to found the cause.

regards,
pc
May's Law: Software efficiency halves every 18 months, compensating Moore's Law. (David May, INMOS)

Avasnti100

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Re: nonsensical output in report.txt
« Reply #4 on: August 14, 2010, 05:01:10 PM »

run it under different user

different user: same erroneous output
different ubuntu install (8.04): same erroneous output


runnuing it under strace/gdb?

I don't have experience with these tools.
Any suggestion how to use them?

Cheers, A

Offline zilog

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Re: nonsensical output in report.txt
« Reply #5 on: August 17, 2010, 11:32:53 PM »

run it under different user

different user: same erroneous output
different ubuntu install (8.04): same erroneous output


runnuing it under strace/gdb?

I don't have experience with these tools.
Any suggestion how to use them?

Cheers, A

just issue command as before, but prepend strace -f, and append >output 2>&1

pc
May's Law: Software efficiency halves every 18 months, compensating Moore's Law. (David May, INMOS)

Avasnti100

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Re: nonsensical output in report.txt
« Reply #6 on: September 29, 2010, 12:54:57 PM »
hello zilog,

Excuses for my long silence.
I noticed that the commandline version "avast" DOES give correct output in its logfile. Hence I use that version.

Quote
Hard to reproduce, valgirnd doesn't identify uninitialised data
I agree with you that this is probably an initialisation problem.

Unfortunately, I donot have the time at present to pursue this matter further in detail.
Regards, A