On Wed, 2017-01-25 at 17:52 -0800, Tom Lee wrote: > Just an update: I am still encountering similar performance issues with the > 4.9.0-1 kernel that was recently promoted to testing. In fact, the 4.9.0-1 > kernel may be the worst yet in terms of this specific issue, with IntelliJ > starting so slowly as to be effectively unusable. One time the entire > system appeared to become completely unresponsive & a hard reset was > required. > > The most recent kernel with which I've experienced problems: > > $ apt-cache show linux-image-4.9.0-1-amd64 > Package: linux-image-4.9.0-1-amd64 > Source: linux-signed (4) > Version: 4.9.2-2 > Installed-Size: 183299 > > This problem does *not* seem to occur with a vanilla 4.9.2 kernel, implying > something Debian-specific: > > $ uname -a > Linux desktop.local 4.9.2 #1 SMP Wed Jan 25 04:28:29 PST 2017 x86_64 > GNU/Linux > > If you're aware of any Debian patches that might be suspect, I'm happy to > try some custom builds. Reproducing the issue is trivial on my end when a > kernel is "bad". [...]
I think that the difference is more likely to be in the configuration, rather than the patches we apply. Some other people followed up to your bug report suggesting there might be a BIOS bug affecting behaviour after a warm reboot, but not booting from power-off: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=843349#17 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=843349#32 (Unfortunately I don't see any BIOS updates available for this model.) Have you tried booting one of the newer kernel versions from power-off? Ben. -- Ben Hutchings Design a system any fool can use, and only a fool will want to use it.
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