Channel 9 Forums - Coffeehouse - Hot patching http://mschnlnine.vo.llnwd.net/d1/Dev/App_Themes/C9/images/feedimage.png Channel 9 Forums - Coffeehouse - Hot patching http://channel9.msdn.com/Forums Channel 9 keeps you up to date with the latest news and behind the scenes info from Microsoft that developers love to keep up with. From LINQ to SilverLight – Watch videos and hear about all the cool technologies coming and the people behind them. http://channel9.msdn.com/Forums en Fri, 24 May 2013 23:42:32 GMT Fri, 24 May 2013 23:42:32 GMT Rev9 8 -8 -1 Coffeehouse - Hot patching "Hot patching

One of my own personal favorites is the hot patching feature that allows you to patch your system binaries even if they are currently in use. By actually patching the binaries in memory, this new feature will significantly reduce the number of reboots required for hotfixes. You will still need to reboot after updating kernel-level binaries, but as always, the fewer reboots the better."
From http://www.securityfocus.com/columnists/312

Is this technology actually being used? I still have to reboot my pc after WindowsUpdate installs new updates and I don't think we've seen a kernel update every month.

]]> http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/469502#469502 Sat, 16 May 2009 14:31:00 GMT http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/469502#469502 ZippyV 8 http://channel9.msdn.com/Niners/ZippyV/Discussions/RSS Coffeehouse - Hot patching I would also like to know the answer to this

]]> http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/2622af92344948da89c89deb00dde9f0#2622af92344948da89c89deb00dde9f0 Sat, 16 May 2009 16:16:03 GMT http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/2622af92344948da89c89deb00dde9f0#2622af92344948da89c89deb00dde9f0 Jonathan Merriweather 8 http://channel9.msdn.com/Niners/Cyonix/Discussions/RSS Coffeehouse - Hot patching We've heard this since Longhorn. "We took reboot out of the code, you should notice less reboots with Longhorn". That never happened in Vista, and it looks like the same story with Windows 7.

http://channel9.msdn.com/posts/DanielMoth/Restart-Manager-in-Vista-for-developers/

]]> http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/7ed75963e0914a5d80ff9deb00ddea1c#7ed75963e0914a5d80ff9deb00ddea1c Sat, 16 May 2009 18:23:17 GMT http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/7ed75963e0914a5d80ff9deb00ddea1c#7ed75963e0914a5d80ff9deb00ddea1c intelman 8 http://channel9.msdn.com/Niners/intelman/Discussions/RSS Coffeehouse - Hot patching It seems to work for drivers. Storage subsystem drivers still want you to reboot though... but graphics drivers don't Smiley

]]> http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/5b36a1cf72ae42478f419deb00ddea4c#5b36a1cf72ae42478f419deb00ddea4c Sat, 16 May 2009 18:50:24 GMT http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/5b36a1cf72ae42478f419deb00ddea4c#5b36a1cf72ae42478f419deb00ddea4c Dorian Muthig 8 http://channel9.msdn.com/Niners/Dodo/Discussions/RSS Coffeehouse - Hot patching
Dodo said:

It seems to work for drivers. Storage subsystem drivers still want you to reboot though... but graphics drivers don't Smiley

Agreed in vista and newer, most sound and video drivers do not seem to need reboots but Most windows updates do.   This was really pushed for Vista, Server 08 but it seems like its not really used.

]]> http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/f1236febe85b4f258ab39deb00ddea83#f1236febe85b4f258ab39deb00ddea83 Sun, 17 May 2009 17:02:18 GMT http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/f1236febe85b4f258ab39deb00ddea83#f1236febe85b4f258ab39deb00ddea83 Tom Stack 8 http://channel9.msdn.com/Niners/Typhoon87/Discussions/RSS Coffeehouse - Hot patching
Dodo said:

It seems to work for drivers. Storage subsystem drivers still want you to reboot though... but graphics drivers don't Smiley

That's a different beast. Graphics drivers don't require a reboot because starting with Vista it is possible to restart them. You can try that for yourself: go to device manager and disable the video driver. Notice how the screen goes blank (and you might see a text mode cursor flashing) and after a while the desktop reappears but using the generic software driver. And of course, you can re-enable it and get back to normal hardware accelerated mode.

As for hot patching: not all updates support hot patching and it's enough only one update that doesn't support hot patching for a reboot to be required. And I'm not even sure it applies to client version of Windows, all information I've seen on hot patching talks about server versions.

 

]]> http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/f5776d54fb3c4448b7059deb00ddeaf5#f5776d54fb3c4448b7059deb00ddeaf5 Sun, 17 May 2009 18:09:58 GMT http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/f5776d54fb3c4448b7059deb00ddeaf5#f5776d54fb3c4448b7059deb00ddeaf5 Dexter 8 http://channel9.msdn.com/Niners/Dexter/Discussions/RSS Coffeehouse - Hot patching
Dexter said:
Dodo said:
*snip*

That's a different beast. Graphics drivers don't require a reboot because starting with Vista it is possible to restart them. You can try that for yourself: go to device manager and disable the video driver. Notice how the screen goes blank (and you might see a text mode cursor flashing) and after a while the desktop reappears but using the generic software driver. And of course, you can re-enable it and get back to normal hardware accelerated mode.

As for hot patching: not all updates support hot patching and it's enough only one update that doesn't support hot patching for a reboot to be required. And I'm not even sure it applies to client version of Windows, all information I've seen on hot patching talks about server versions.

 

Pretty sure that nVidia still asks for a reboot. ATI does not anymore, only during uninstallation.

]]> http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/ed1fb4f23baa40c1af869deb00ddeb27#ed1fb4f23baa40c1af869deb00ddeb27 Sun, 17 May 2009 18:29:26 GMT http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/ed1fb4f23baa40c1af869deb00ddeb27#ed1fb4f23baa40c1af869deb00ddeb27 intelman 8 http://channel9.msdn.com/Niners/intelman/Discussions/RSS Coffeehouse - Hot patching
intelman said:
Dexter said:
*snip*

Pretty sure that nVidia still asks for a reboot. ATI does not anymore, only during uninstallation.

Could be. I only have ATI cards Smiley.

]]> http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/ee5dd1de883e4a1191b49deb00ddeb95#ee5dd1de883e4a1191b49deb00ddeb95 Sun, 17 May 2009 18:36:16 GMT http://channel9.msdn.com/Forums/Coffeehouse/469502-Hot-patching/ee5dd1de883e4a1191b49deb00ddeb95#ee5dd1de883e4a1191b49deb00ddeb95 Dexter 8 http://channel9.msdn.com/Niners/Dexter/Discussions/RSS