Bugs item #2034672, was opened at 2008-08-01 08:22 Message generated for change (Comment added) made by jessorensen You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2034672&group_id=180599 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Rafal Wijata (ravpl) Assigned to: Nobody/Anonymous (nobody) Summary: guest: BUG: soft lockup - CPU#0 stuck for 41s! Initial Comment: host: kvm71, 64bit 2.6.25.11-60.fc8, 8Gram, 2*E5420(8cores), 3ware raid10 guest: 64bit 2.6.18-92.1.6.el5, 5Gram, 6cpus, hdd on raw file. I know this bug happens even in non-virtual machines(browsing internet shows that clearly), but inside kvm I'm getting excessive rate of this bug (under load, even few times a hour) An example can be found at end of this message. The record was something over 500 seconds !! Now, I suspect it has something to do with the network or net driver. There's almost always either swapper or network service in the backtrace. But I cannot confirm for surely. BUG: soft lockup - CPU#0 stuck for 41s! [events/0:20] CPU 0: Modules linked in: nfsd exportfs auth_rpcgss ipv6 xfrm_nalgo crypto_api autofs4 nfs lockd fscache nfs_acl sunrpc dm_mirror dm_multipath dm_mod video sbs backlight i2c_ec button battery asus_acpi acpi_memhotplug ac lp floppy loop ide_cd parport_pc i2c_piix4 serio_raw parport cdrom i2c_core e1000 pcspkr ata_piix libata sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd Pid: 20, comm: events/0 Not tainted 2.6.18-92.1.6.el5 #1 RIP: 0010:[<ffffffff80011ec7>] [<ffffffff80011ec7>] __do_softirq+0x53/0xd6 RSP: 0018:ffffffff80418f60 EFLAGS: 00000206 RAX: 0000000000000002 RBX: ffffffff803b6f80 RCX: 0000000000000380 RDX: ffff81015f9e7fd8 RSI: 0000000000000280 RDI: ffff81015f9d97a0 RBP: ffffffff80418ee0 R08: 0000000000000001 R09: ffff810080bf5000 R10: 0000000000000046 R11: 0000000000000246 R12: ffffffff8005dc8e R13: 0000000000000002 R14: ffffffff80077090 R15: ffffffff80418ee0 FS: 0000000000000000(0000) GS:ffffffff8039f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 000000300c203080 CR3: 000000015df0a000 CR4: 00000000000006e0 Call Trace: <IRQ> [<ffffffff8005e2fc>] call_softirq+0x1c/0x28 [<ffffffff8006c6e4>] do_softirq+0x2c/0x85 [<ffffffff8005dc8e>] apic_timer_interrupt+0x66/0x6c <EOI> [<ffffffff80064af8>] _spin_unlock_irqrestore+0x8/0x9 [<ffffffff880fdc61>] :e1000:e1000_update_stats+0x5f6/0x5fd [<ffffffff88101ed5>] :e1000:e1000_watchdog_task+0x535/0x65a [<ffffffff8004cea9>] run_workqueue+0x94/0xe4 [<ffffffff800497be>] worker_thread+0x0/0x122 [<ffffffff800498ae>] worker_thread+0xf0/0x122 [<ffffffff8008ad76>] default_wake_function+0x0/0xe [<ffffffff8003253d>] kthread+0xfe/0x132 [<ffffffff8005dfb1>] child_rip+0xa/0x11 [<ffffffff8003243f>] kthread+0x0/0x132 [<ffffffff8005dfa7>] child_rip+0x0/0x11 BUG: soft lockup - CPU#2 stuck for 17s! [swapper:0] CPU 2: Modules linked in: nfsd exportfs auth_rpcgss ipv6 xfrm_nalgo crypto_api autofs4 nfs lockd fscache nfs_acl sunrpc dm_mirror dm_multipath dm_mod video sbs backlight i2c_ec button battery asus_acpi acpi_memhotplug ac lp floppy loop ide_cd parport_pc i2c_piix4 serio_raw parport cdrom i2c_core e1000 pcspkr ata_piix libata sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd Pid: 0, comm: swapper Not tainted 2.6.18-92.1.6.el5 #1 RIP: 0010:[<ffffffff8006aed7>] [<ffffffff8006aed7>] default_idle+0x29/0x50 RSP: 0018:ffff810104e63ef0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff802e6658 RBP: ffff810104e1d270 R08: ffff810104e62000 R09: 000000000000003e R10: ffff810104f64038 R11: 0000000000000000 R12: 000000000c51b3f5 R13: 00003434e623bb62 R14: ffff81015f9db7e0 R15: ffff810104e1d080 FS: 0000000000000000(0000) GS:ffff810104e1cec0(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 00002b3a3b647230 CR3: 0000000000201000 CR4: 00000000000006e0 Call Trace: [<ffffffff80048b1d>] cpu_idle+0x95/0xb8 [<ffffffff800767da>] start_secondary+0x45a/0x469 ---------------------------------------------------------------------- >Comment By: Jes Sorensen (jessorensen) Date: 2010-06-25 15:44 Message: Hi, Looking through old bugs. Do you still see this problem or can we close the bug? I believe a lot of these problems have been fixed in more recent KVM, but if you could let us know that would be great. Thanks, Jes ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2034672&group_id=180599 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
