Yesterday, I had the same problem, with the same kernel 2.6.24-23-server: BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:435]
I might have been allocating too much memory, altough swap should have been able to handle it... It's a quad opteron quad-core with 32Gb ram and 24gb swap. #--------------------kern.log--------------- BUG: soft lockup - CPU#0 stuck for 11s! [kswapd0:435] CPU 0: Modules linked in: powernow_k8 nfsd auth_rpcgss exportfs container video output ac sbs sbshc dock battery cpufreq_ondemand cpufreq_conservative cpufreq_stats freq_table cpufreq_powersave cpufreq_userspace ipv6 nfs lockd nfs_acl sunrpc iptable_filter ip_tables x_tables af_packet lp loop parport_pc parport shpchp pci_hotplug evdev i2c_nforce2 button i2c_core pcspkr ext3 jbd mbcache sg sr_mod cdrom sd_mod pata_acpi ata_generic floppy e1000 aic79xx scsi_transport_spi sata_nv pata_amd libata ehci_hcd ohci_hcd scsi_mod usbcore thermal processor fan fbcon tileblit font bitblit softcursor fuse Pid: 435, comm: kswapd0 Not tainted 2.6.24-23-server #1 RIP: 0010:[lockd:_spin_lock_irqsave+0x12/0x30] [lockd:_spin_lock_irqsave+0x12/0x30] _spin_lock_irqsave+0x12/0x30 RSP: 0000:ffff81022dda7df8 EFLAGS: 00000286 RAX: 0000000000000246 RBX: ffff81000003137f RCX: 0000000000000003 RDX: 0000000000000001 RSI: ffff81022dda7ea0 RDI: ffff81000003137f RBP: ffff81022dda7d60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 00000000000005c7 R12: ffff81022dda7d60 R13: ffffffff8028d55e R14: ffff8102377b4050 R15: ffff8102377bd388 FS: 00007f6bad8a56f0(0000) GS:ffffffff805c5000(0000) knlGS:00000000f7e04b90 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 00007f9d4472a000 CR3: 0000000000201000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: [nfs:prepare_to_wait+0x23/0x80] prepare_to_wait+0x23/0x80 [kswapd+0xfa/0x560] kswapd+0xfa/0x560 [<ffffffff80254540>] autoremove_wake_function+0x0/0x30 [kswapd+0x0/0x560] kswapd+0x0/0x560 [kthread+0x4b/0x80] kthread+0x4b/0x80 [child_rip+0xa/0x12] child_rip+0xa/0x12 [kthread+0x0/0x80] kthread+0x0/0x80 [child_rip+0x0/0x12] child_rip+0x0/0x12 ;------------------------------------------- The kern.log continues like this forever, and the machine completely locked up as I tried to reboot it. It needed a manual hard reset... ** Attachment added: "kswapd0_kernBug.txt" http://launchpadlibrarian.net/26512716/kswapd0_kernBug.txt -- BUG: soft lockup - CPU#2 stuck for 11s! [kswapd0:332] https://bugs.launchpad.net/bugs/353070 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
