From Bugzilla Helper: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4 Description of problem: To fix the " mm/memory.c:98: bad pmd " error on a SMP Opteron (dual-core) x86 sytem on the latest 2.6.11-1.27_FC3smp kernel bugzilla suggests running davej's latest devel kernel rpm's. However after running for an amount of time the server now oops. So far, the longest uptime is 6 hours before death. Version-Release number of selected component (if applicable): kernel-smp-2.6.11-1.35_FC3 How reproducible: Always Steps to Reproduce: 1. Basically run any application that puts the system under load. 2. Run app for a few hours. Additional info: Jun 18 14:56:24 ec09-dc01 kernel: swap_free: Bad swap file entry 4000000000000000 Jun 18 14:56:24 ec09-dc01 kernel: ----------- [cut here ] --------- [please bite here ] --------- Jun 18 14:56:24 ec09-dc01 kernel: Kernel BUG at rmap:482 Jun 18 14:56:24 ec09-dc01 kernel: invalid operand: 0000 [4] SMP Jun 18 14:56:24 ec09-dc01 kernel: CPU 1 Jun 18 14:56:24 ec09-dc01 kernel: Modules linked in: md5 ipv6 nbd dm_mod video button battery ac ohci_hcd tg3 floppy sg ext3 jbd aic79xx sd_mod scsi_mod Jun 18 14:56:24 ec09-dc01 kernel: Pid: 10412, comm: sh Tainted: G B 2.6.11-1.35_FC3smp Jun 18 14:56:24 ec09-dc01 kernel: RIP: 0010:[<ffffffff801755a6>] <ffffffff801755a6>{page_remove_rmap+38}
*** Bug 161419 has been marked as a duplicate of this bug. ***
An update has been released for Fedora Core 3 (kernel-2.6.12-1.1372_FC3) which may contain a fix for your problem. Please update to this new kernel, and report whether or not it fixes your problem. If you have updated to Fedora Core 4 since this bug was opened, and the problem still occurs with the latest updates for that release, please change the version field of this bug to 'fc4'. Thank you.
Installed the new kernel-smp-2.6.12-1.1372_FC3.x86_64.rpm package but the server now dies due to a kernel panic during boot / startup. No log just yet as this was tested via remote hands. I will try to schedule a reboot to test the non-smp / i686 versions and get full error log 'soon'.
kernel-2.6.12-1.1372_FC3.x86_64.rpm installed and boots fine. 12 hours uptime under load so far with no 'bad pmd' or oops which is a marked improvement over previous versions. However the x86_64-SMP kernel still fails to boot, hope to test the i686-smp version later.
Well I guess I can't test the smp version (!) until bug 163437 is resolved ....
kernel 2.6.12-1.1372_FC3smp seems to fix all issues previously seen.
Negative. I just booted kernel 2.6.12-1.1372_FC3smp and had two panics with "swap_free: Bad swap file entry", see https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=164941 K.O.