Hello, I have an Intel® Server Board S5500BC which started to cause problems during boot, mainly with the e1000e driver, raising the server without any NIC/s. A reboot ususally recovers the NIC/s. The following trace is seen from the unit boot, showing an inconsistent problem while trying to load the e1000e driver. Looking at the sources, it looks like it is stuck in a critical section. But I frankly do not understand how it is possible, as there is no real reason for it to hang on the mutex lock. At the moment, except memory curroption/leak I cannot think of anything else... I see it on several machines, so I assume it is not a specific HW problem. I will apriciate if someone could point me into some direction. Note, the pasted message below repeats in a loop, always hangling on the same lock. In addition, these units also hang from time to time on initramfs shell, with an avarage of 3 times less frequent than the NIC issue. I'm using the following Kernel version: Linux version 2.6.32-29-generic-pae (buildd@roseapple) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #58-Ubuntu SMP Fri Feb 11 19:15:25 UTC 2011 (Ubuntu 2.6.32-29.58-generic-pae 2.6.32.28+drm33.13) Thanks, Edy. This is the relevant trace from the dmesg output: [ 5.732070] lp: driver loaded but no devices found [ 6.002709] Console: switching to colour frame buffer device 80x30 [ 6.023688] type=1505 audit(1299198224.576:5): operation="profile_load" pid=820 name="/usr/sbin/tcpdump" [ 6.023858] type=1505 audit(1299198224.576:6): operation="profile_replace" pid=819 name="/sbin/dhclient3" [ 6.024301] type=1505 audit(1299198224.576:7): operation="profile_replace" pid=819 name="/usr/lib/NetworkManager/nm-dhcp-client.action" [ 6.024550] type=1505 audit(1299198224.576:8): operation="profile_replace" pid=819 name="/usr/lib/connman/scripts/dhclient-script" [ 6.134782] ip_tables: (C) 2000-2006 Netfilter Core Team [ 6.177099] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [ 6.177269] CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use [ 6.177271] nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or [ 6.177273] sysctl net.netfilter.nf_conntrack_acct=1 to enable it. [ 240.190031] INFO: task modprobe:178 blocked for more than 120 seconds. [ 240.190534] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 240.191160] modprobe D 00183416 0 178 1 0x00000000 [ 240.191169] f6e8fd44 00000086 f829b248 00183416 00000000 c088f4c0 f6f85be4 c088f4c0 [ 240.191186] 6c1f8881 00000000 c088f4c0 c088f4c0 f6f85be4 c088f4c0 c088f4c0 f6e3ea00 [ 240.191202] 6a3827bd 00000000 f6f85940 f829b238 f829b23c ffffffff f6e8fd70 c05b3bb6 [ 240.191216] Call Trace: [ 240.191231] [<c05b3bb6>] __mutex_lock_slowpath+0xd6/0x140 [ 240.191239] [<c05b3ac5>] mutex_lock+0x25/0x40 [ 240.191255] [<f8285be1>] e1000_acquire_swflag_ich8lan+0x21/0xa0 [e1000e] [ 240.191270] [<f8286aea>] e1000_reset_hw_ich8lan+0x7a/0x250 [e1000e] [ 240.191287] [<f82940bd>] e1000e_reset+0xfd/0x330 [e1000e] [ 240.191302] [<f82984e8>] e1000_probe+0x7b7/0xa09 [e1000e] [ 240.191309] [<c0227745>] ? iput+0x25/0x60 [ 240.191316] [<c026af3b>] ? sysfs_addrm_finish+0x3b/0xf0 [ 240.191325] [<c0370043>] local_pci_probe+0x13/0x20 [ 240.191331] [<c0370e48>] pci_device_probe+0x68/0x90 [ 240.191339] [<c03fceed>] really_probe+0x4d/0x140 [ 240.191347] [<c040380e>] ? pm_runtime_barrier+0x4e/0xc0 [ 240.191354] [<c03fd01c>] driver_probe_device+0x3c/0x60 [ 240.191361] [<c03fd0c1>] __driver_attach+0x81/0x90 [ 240.191368] [<c03fc503>] bus_for_each_dev+0x53/0x80 [ 240.191375] [<c03fcdbe>] driver_attach+0x1e/0x20 [ 240.191382] [<c03fd040>] ? __driver_attach+0x0/0x90 [ 240.191389] [<c03fc785>] bus_add_driver+0xd5/0x280 [ 240.191396] [<c0370d80>] ? pci_device_remove+0x0/0x40 [ 240.191403] [<c03fd3ba>] driver_register+0x6a/0x130 [ 240.191410] [<c0371085>] __pci_register_driver+0x45/0xb0 [ 240.191423] [<f82a304b>] e1000_init_module+0x4b/0x67 [e1000e] [ 240.191430] [<c0103041>] do_one_initcall+0x31/0x190 [ 240.191443] [<f82a3000>] ? e1000_init_module+0x0/0x67 [e1000e] [ 240.191452] [<c018acb0>] sys_init_module+0xb0/0x210 [ 240.191458] [<c01097ac>] syscall_call+0x7/0xb lshw network output: *-network description: Ethernet interface product: 82574L Gigabit Network Connection vendor: Intel Corporation physical id: 0 bus info: pci@0000:01:00.0 logical name: eth1 version: 00 serial: 00:1b:21:57:0a:54 size: 100MB/s capacity: 1GB/s width: 32 bits clock: 33MHz capabilities: pm msi pciexpress msix bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=off broadcast=yes driver=e1000e driverversion=1.0.2-k2 duplex=full firmware=1.8-0 ip=127.0.1.1 latency=0 link=yes multicast=yes port=twisted pair speed=100MB/s resources: irq:16 memory:b1a80000-b1a9ffff memory:b1a00000-b1a7ffff ioport:2000(size=32) memory:b1aa0000-b1aa3fff memory:b1c00000-b1c3ffff(prefetchable) *-network description: Ethernet interface product: 82578DM Gigabit Network Connection vendor: Intel Corporation physical id: 19 bus info: pci@0000:00:19.0 logical name: eth0 version: 05 serial: 00:15:17:c8:0a:3d size: 100MB/s capacity: 1GB/s width: 32 bits clock: 33MHz capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=off broadcast=yes driver=e1000e driverversion=1.0.2-k2 duplex=full firmware=0.9-2 ip=127.0.0.1 latency=0 link=yes multicast=yes port=twisted pair speed=100MB/s resources: irq:34 memory:b1b00000-b1b1ffff memory:b1b24000-b1b24fff ioport:3020(size=32) *-network description: Ethernet interface product: 82574L Gigabit Network Connection vendor: Intel Corporation physical id: 0 bus info: pci@0000:03:00.0 logical name: eth2 version: 00 serial: 00:15:17:c8:0a:3c size: 100MB/s capacity: 1GB/s width: 32 bits clock: 33MHz capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=1.0.2-k2 duplex=full firmware=1.9-0 ip=172.17.6.2 latency=0 link=yes multicast=yes port=twisted pair speed=100MB/s resources: irq:16 memory:b1900000-b191ffff ioport:1000(size=32) memory:b1920000-b1923fff *-network:0 DISABLED description: Ethernet interface physical id: 1 logical name: eth1.24 serial: 00:1b:21:57:0a:54 size: 100MB/s capacity: 1GB/s capabilities: ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=off broadcast=yes driver=802.1Q VLAN Support driverversion=1.8 duplex=full firmware=N/A link=yes multicast=yes port=twisted pair speed=100MB/s *-network:1 description: Ethernet interface physical id: 2 logical name: vlan24 serial: 00:15:17:c8:0a:3d size: 100MB/s capacity: 1GB/s capabilities: ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=off broadcast=yes driver=802.1Q VLAN Support driverversion=1.8 duplex=full firmware=N/A ip=172.24.4.182 link=yes multicast=yes port=twisted pair speed=100MB/s -- To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
