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Windows 7: Bug in Windows 7 RTM

05 Aug 2009   #51
raj11650

win 7 build 7600.16385 x64
 
 

"showstopper" Definition for a tester
A bug can be considered as "showstopper" when any bug going to break the application or important functionality with respect to business or end user fails is called show stopper.

its not replicable as reported by many users many be specific to some hardware!!!


My System SpecsSystem Spec
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05 Aug 2009   #52
rck01

Peanut Butter & Jelly.
 
 

Further testing shows that the problem isn't isolated to chkdsk.exe. If you run the same disk check from the shell (right click on the volume in My Computer and select Tools - Check Now), explorer.exe starts eating RAM like crazy - pushed my test rig up to 98% memory utilization in a matter of seconds. Worse still, it doesn't release the memory when it's done. If you cancel out of the check process, explorer.exe keeps on growing, which is actually even more disturbing than chkdsk.exe, which is terminated when you close its command prompt window. Your only recourse is to logout, reboot or manually kill and restart explorer.exe.

Folks, this is a serious bug. Even if it doesn't cause a BSOD, the fact that this function - which seems to be a file-system-wide, as opposed to program-specific, problem - runs up the memory like this is potentially disastrous in many environments. Think about the R2 server admin who does a proactive check on one more more non-system-boot disks. Having a disk check gobble this much RAM could seriously cripple a high-volume web site or sql server.

Truly scary stuff...

RCK
My System SpecsSystem Spec
05 Aug 2009   #53
Antman

 

Well, that is odd. Running it from Tools caused dllhost, not Explorer, to consume ~2.26 GB vs ~3.1 GB running in cmd. Still haven't updated chipset.
My System SpecsSystem Spec
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05 Aug 2009   #54
rck01

Peanut Butter & Jelly.
 
 

That is weird. The only time I see this running in DLL Host is under Vista. With Windows 7, it always runs as part of Explorer.exe. Maybe it's a permissions thing? Have you cranked-up UAC or something? FWIW, I'm running with the default setting, so...

RCK
My System SpecsSystem Spec
05 Aug 2009   #55
Antman

 

Mem usage dropped to below 2 vs 3+ yesterday. Dllhost did release. Now I can't find the chipset I downloaded already. Don't see connection to UAC, but I am fairly high at 3 (one down from max setting).
My System SpecsSystem Spec
05 Aug 2009   #56
rck01

Peanut Butter & Jelly.
 
 

Uh-oh! Looks like that crazy Kennedy guy got wind of this one and ran with it:

Link Removed

Man, that guy really steams my clams sometimes...

RCK
My System SpecsSystem Spec
05 Aug 2009   #57
Mark

Windows 7 Ultimate Vista Ultimate x64
 
 

Quote   Quote: Originally Posted by rck01 View Post
Uh-oh! Looks like that crazy Kennedy guy got wind of this one and ran with it:

Link removed

Man, that guy really steams my clams sometimes...

RCK
That guy doesn't deserve any acknowledgment or the light of day and we have a unwritten rule about even posting links to his stupid rants, do so again at your own peril, RCK

If I ever seen that guy I would punch him right in the nose.
My System SpecsSystem Spec
05 Aug 2009   #58
rck01

Peanut Butter & Jelly.
 
 

You and me both...the man is a real piece of work.

RCK
My System SpecsSystem Spec
05 Aug 2009   #59
Antman

 

I guess I missed all the Kennedy stuff?

Anyway - turned off UAC - Disk Checking via Tools is now running as Explorer AND mem usage hit 3.22GB within seconds. File count on the target drive is constant from yesterday.

Cancelled scan and Explorer DID NOT release memory. I was able to close that instance of Explorer with a right click end procees. It closed immediately with no visible affect.
My System SpecsSystem Spec
05 Aug 2009   #60
rck01

Peanut Butter & Jelly.
 
 

Yes, that's exactly what I'm seeing. I didn't disable UAC - just left it in its default configuration, which is how most users will leave it. So the problem is even worse in this case - very troubling.

RCK
My System SpecsSystem Spec
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 Bug in Windows 7 RTM




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