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Jun
23
comment Does UEFI potentially leak encryption keys?
@ultrasawblade: I saw a quote that was interesting in the link you linked to, which was: "When an application or non-Windows operating system attempts to access a VGA register or memory range, the MediaGX processor detects the access attempt and internally takes a System Management Interrupt (SMI)"... I was wondering, do you know why they say "non-Windows"? Isn't SMI invisible to every OS?
Jun
22
awarded  Notable Question
Jun
1
awarded  Notable Question
May
30
comment Bought a slot-loading BD-RE drive, but it spits out every disc I feed it without spinning. What do?
@Moab: Well I can, but it's a hassle and I want to use it if possible.
May
30
comment Bought a slot-loading BD-RE drive, but it spits out every disc I feed it without spinning. What do?
@James: Actually, could it be that it's attempting to draw more power than my laptop will output? I'm not sure if a BD drive needs more power than a DVD drive (although I was inserting a DVD regardless).
May
30
comment Bought a slot-loading BD-RE drive, but it spits out every disc I feed it without spinning. What do?
I tried upside down and it didn't make a difference; I can't find an eject button though. But when I try "eject" in My Computer it does attempt to eject reasonably, so it seems to be fine in that respect? I suspect it's faulty as well...
May
30
asked Bought a slot-loading BD-RE drive, but it spits out every disc I feed it without spinning. What do?
May
25
reviewed Approve GParted errors on MBR Disk, Claims it's GPT. (It's mistaken, but why?)
May
24
comment Can a USB flash drive be used reliably as a (manual) backup drive?
I have that exact flash drive! And it's given me errors several times... can definitely vouch for the unreliability.
May
24
comment Why don't file managers use the Master File Table for instant search results?
@LifeH2O: Not even then, because if you store per-user permissions for every file, the size of the MFT would blow up, and reading it would take much longer. It's a lose-lose except in the most trivial cases, and OSes aren't designed for trivial cases.
May
24
comment Why don't file managers use the Master File Table for instant search results?
@LifeH2O: And this is all assuming the security information is already in memory or in MFT, which it typically isn't.
May
24
comment Why don't file managers use the Master File Table for instant search results?
@LifeH2O: Have you considered how complicated it is to "check" something? Users belong to multiple groups, groups and users can each have allow/deny/neither permissions on either some directory on the chain or on the file itself, and you have to figure out the effective permissions for the current user on each file using its ACL. Now add to that the synchronization required with the kernel's security manager subsystem, and you're going to get massive performance hits just "checking" all the files.
May
24
comment Why don't file managers use the Master File Table for instant search results?
@LifeH2O: The problem is that adding security checks is going to be a massive performance hit, which entirely defeats the point of the tool.
May
6
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May
5
awarded  Nice Question
May
4
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Apr
27
awarded  Notable Question
Mar
31
awarded  Socratic
Mar
29
comment How to measure total RAM usage of a program under Windows?
The total private working set should give you a lower bound, and the total virtual size should give you an upper bound. It's probably somewhere between those two, maybe close to the total working set.
Mar
14
comment Force refresh (re-scan) wireless networks from command line?
@ekaj: That doesn't refresh anything, it just shows the cached data.