Package: linux-image-2.6.18-3-amd64 Version: 2.6.18-7 Severity: grave Justification: hardware overheating hazard; requires periodic reboots
(This is not the same bug as #400488 (upstream #7122)) This bug affects several amd64 notebooks from HP, notably the nx6125 and the nx6325; there may be other affected machines as well. Kernel team, please apply the patches for http://bugzilla.kernel.org/show_bug.cgi?id=5534 This bug is there merely to remind the kernel team not to release etch without the patches :) However I'm not sure which upstream version of linux, if any, contains the patches in the (long) trail of comments. So, it might be necessary to wait for a few days until the patches arrive in Linus' tree. Symptoms: - under load, the fans fail to turn on when the temperature reaches and then exceeds the normal threshold, which is 58°C. - there is a permanent memory leak in the kernel, even when the system is idle. The leak is visible by looking at $ grep Slab: /proc/meminfo and $ grep Acpi-State /proc/slabinfo Workaround: - if overheating, shut down the computer and let it cool down; or let it shut itself down to prevent a fire hazard. - if the only problem is the memory leak, reboot. Consequence: linux-image-2.6.18-3-amd63 (=2.6.18-7) is unsuitable for release. The memory leak is described at: http://www.mail-archive.com/linux-acpi@vger.kernel.org/msg03119.html Today I had to reboot my HP Compaq nx6325 because the kernel was eating 1.8 Gb out of the 1.9 Gb of RAM in the system, after about 9 days of uptime. Then I started a hourly cron job to monitor /proc/meminfo and /proc/slabinfo as described above: 2006-06-21T20:06:10: Slab: 30296 kB 2006-17-21T20:17:01: Slab: 37756 kB 2006-17-21T21:17:01: Slab: 48116 kB 2006-17-21T22:17:01: Slab: 55764 kB 2006-17-21T23:17:01: Slab: 69904 kB -- Reboot with acpi=noirq: only one CPU found -- 2006-24-21T23:24:10: Slab: 10444 kB -- Reboot with pci=noacpi: only one CPU found -- 2006-30-21T23:30:26: Slab: 9676 kB 2006-30-21T23:30:26: Acpi-State 0 0 80 48 1 : tunables 120 60 8 : slabdata 0 0 0 -- Reboot with no options: OK, both CPUs found -- 2006-34-21T23:34:23: Slab: 10584 kB 2006-34-21T23:34:23: Acpi-State 0 0 80 48 1 : tunables 120 60 8 : slabdata 0 0 0 2006-17-22T00:17:01: Slab: 15424 kB 2006-17-22T00:17:01: Acpi-State 23088 23088 80 48 1 : tunables 120 60 8 : slabdata 481 481 0 2006-17-22T01:17:01: Slab: 29956 kB 2006-17-22T01:17:01: Acpi-State 59136 59136 80 48 1 : tunables 120 60 8 : slabdata 1232 1232 0 I'm more than willing to help test a kernel package, but I'll be on [VAC] from 2006-12-23 to 2007-01-03 inclusive. So, please do not release Etch just now :) -- Ludovic Brenta. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
