John A. Sullivan III
2009-Aug-03 21:45 UTC
[asterisk-users] dahdi_dummy soft lockup in dahdi-linux-2.2.0.2
Hello, all. We attempted an upgraded from 1.6.1.1 to 1.6.1.2 today including upgrading dahdi-linux from 2.1.0.4 to 2.2.0.2 and dahdi-tools from 2.1.0.2 to 2.2.0. After rebooting, we receive: Aug 3 17:20:44 pbx01 kernel: BUG: soft lockup - CPU#2 stuck for 10s! [swapper:0] Aug 3 17:20:44 pbx01 kernel: CPU 2: Aug 3 17:20:44 pbx01 kernel: Modules linked in: ipv6 xfrm_nalgo crypto_api autofs4 dahdi_dummy(U) xpp_usb(U) xpp(U) wctc4xxp(U) dahdi_transcode(U) wcb4xx Aug 3 17:20:44 pbx01 kernel: Pid: 0, comm: swapper Tainted: G 2.6.18-128.2.1.el5 #1 Aug 3 17:20:44 pbx01 kernel: RIP: 0010:[<ffffffff80064c08>] [<ffffffff80064c08>] _spin_unlock_irqrestore+0x8/0x9 Aug 3 17:20:44 pbx01 kernel: RSP: 0018:ffff81011fc87e98 EFLAGS: 00000246 Aug 3 17:20:44 pbx01 kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 Aug 3 17:20:44 pbx01 kernel: RDX: 0000000000008020 RSI: 0000000000000246 RDI: ffffffff883ec3b0 Aug 3 17:20:44 pbx01 kernel: RBP: ffff81011fc87e10 R08: ffffffff8857f420 R09: ffff810080bf8b00 Aug 3 17:20:44 pbx01 kernel: R10: 0000000000000000 R11: 0000000000000282 R12: ffffffff8005dc8e Aug 3 17:20:44 pbx01 kernel: R13: 0000000000000002 R14: ffffffff80077533 R15: ffff81011fc87e10 Aug 3 17:20:44 pbx01 kernel: FS: 0000000041e57940(0000) GS:ffff81011fc5ce40(0000) knlGS:0000000000000000 Aug 3 17:20:44 pbx01 kernel: CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b Aug 3 17:20:44 pbx01 kernel: CR2: 00002b75e2c8c0a0 CR3: 0000000000201000 CR4: 00000000000006e0 Aug 3 17:20:44 pbx01 kernel: Aug 3 17:20:44 pbx01 kernel: Call Trace: Aug 3 17:20:44 pbx01 kernel: <IRQ> [<ffffffff883e117b>] :dahdi:dahdi_receive+0x7ce/0x7f9 Aug 3 17:20:44 pbx01 kernel: [<ffffffff885762ee>] :dahdi_dummy:dahdi_dummy_timer+0xb3/0xfd Aug 3 17:20:44 pbx01 kernel: [<ffffffff8857623b>] :dahdi_dummy:dahdi_dummy_timer+0x0/0xfd Aug 3 17:20:44 pbx01 kernel: [<ffffffff80094e14>] run_timer_softirq+0x133/0x1af Aug 3 17:20:44 pbx01 kernel: [<ffffffff80011fc3>] __do_softirq+0x89/0x133 Aug 3 17:20:44 pbx01 kernel: [<ffffffff8005e2fc>] call_softirq+0x1c/0x28 Aug 3 17:20:44 pbx01 kernel: [<ffffffff8006cada>] do_softirq+0x2c/0x85 Aug 3 17:20:44 pbx01 kernel: [<ffffffff8006b287>] default_idle+0x0/0x50 Aug 3 17:20:44 pbx01 kernel: [<ffffffff8005dc8e>] apic_timer_interrupt+0x66/0x6c Aug 3 17:20:44 pbx01 kernel: <EOI> [<ffffffff8006b2b0>] default_idle+0x29/0x50 Aug 3 17:20:44 pbx01 kernel: [<ffffffff80048d9e>] cpu_idle+0x95/0xb8 Aug 3 17:20:44 pbx01 kernel: [<ffffffff80076c3f>] start_secondary+0x45a/0x469 Aug 3 17:20:44 pbx01 kernel: We are running on fully patched CentOS 5.3: [root at pbx01 Asterisk]# uname -a Linux pbx.mycompany.com 2.6.18-128.2.1.el5 #1 SMP Tue Jul 14 06:36:37 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux We are assuming this is a dahdi-linux problem. Our procedure was a straightforward make (as unprivileged user) and make install (as root). Reverting to the previous versions on the same kernel resolves the problem - John -- John A. Sullivan III Open Source Development Corporation +1 207-985-7880 jsullivan at opensourcedevel.com http://www.spiritualoutreach.com Making Christianity intelligible to secular society