Short description: after recompiling 32-bit kernel with 64Gb highmem support and rebooting into it, OS started working very much slower then before.
Specifications: Intel Core 2 Duo [EMAIL PROTECTED],4Ghz on Intel i965Q-based motherboard. 6Gb of DDR2 RAM, 2x1Gb+2x2Gb, dual-channel. Vector Linux 5.8 (Slackware Linux 11-based), 2.6.20.3 kernel. Long description: after recompiling 32-bit 2.6.20.3 kernel with 64Gb highmem option and rebooting into it, booting process froze on udevd. After booting up from CD and disabling rc.udev, system started, but it's work after rc.M script sarted was 5-10 times slower then usual. top showed, that processes are taking much more CPU% time then usual. I tried downloading the newest stable kernel - 2.6.22.9 - hoping, that it would solve the problem. I downloaded it, booted from CD, and compiled it with 64Gb highmem support. I felt some speed improvement, but if on 2.6.20.3 machine performed like P166, now it is working like P2-350. I've found a similar problem, described on lkml - http://lkml.org/lkml/2007/5/30/5 . But, unfortunately, it is x86_64 related and contains no clues for me. Moving to 64-bit distro is rather unpleasant - as there is an option in 32-bit kernel, it should work ;) . What tests should I run to help investigate this problem? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
