Hi Brice, On Thu, 17 Jul 2008 10:11:25 +0200 Brice Figureau <brice+lm at daysofwonder.com> wrote: > Hi, > > > I have a bunch of Sun X2200 servers that I need to monitor (temperatures > and fan speeds), through SNMP (and thus net-snmp). Net-Snmp does only > support lm-sensors to access hardware sensors values. Those servers > don't have a "native" lm-sensor chip, but expose some values through > IPMI. > > I tried the latest ipmisensors version I could find > (http://bmcsensors-26.sourceforge.net/ipmisensors/ipmisensors-20070630-1330.diff), > which compiled with a few api changes on 2.6.25. > > Unfortunately there are some issues for this hwmon: > > * Important: when unloading ipmisensors it doesn't remove its sysfs > files, so that you can get a BUG() if you look at its sysfs files, or > you can't reload it. Note that I'm not really familiar with sysfs or > kernel development, maybe removing sysfs on module unloading is > something that was added after 2.6.17. > Here is the oops trace: > sysfs: duplicate filename 'name' can not be created > ------------[ cut here ]------------ > WARNING: at fs/sysfs/dir.c:424 sysfs_add_one+0x3f/0x93() > Modules linked in: ipmisensors ipmi_si ipmi_msghandler i2c_dev > sha1_generic drbd cn ipv6 video output ac battery nf_conntrack_ftp > nf_conntrack_irc xt_tcpudp ipt_LOG xt_limit xt_state nf_conntrack_ipv4 > nf_conntrack iptable_filter ip_tables x_tables bonding sg loop pcspkr > i2c_nforce2 button shpchp i2c_core pci_hotplug evdev ext3 jbd mbcache > dm_mirror dm_snapshot dm_mod raid1 md_mod sd_mod amd74xx ide_pci_generic > ide_core usbhid hid ff_memless mptsas mptscsih mptbase sata_nv > ata_generic scsi_transport_sas libata scsi_mod forcedeth tg3 ehci_hcd > ohci_hcd dock thermal processor fan [last unloaded: k8temp] > Pid: 22794, comm: ipmisensors_wor Not tainted 2.6.25-2-amd64 #1 > > Call Trace: > [<ffffffff80234ce5>] warn_on_slowpath+0x51/0x63 > [<ffffffff80235a40>] printk+0x4e/0x56 > [<ffffffff802abb65>] find_inode+0x28/0x6d > [<ffffffff802e0320>] sysfs_ilookup_test+0x0/0xf > [<ffffffff802abc94>] ifind+0x44/0x88 > [<ffffffff802e051c>] sysfs_find_dirent+0x1b/0x2f > [<ffffffff802e056f>] sysfs_add_one+0x3f/0x93 > [<ffffffff802e0083>] sysfs_add_file+0x50/0x81 > [<ffffffff88318b27>] :ipmisensors:ipmisensors_build_sysfs+0x804/0x8ed > [<ffffffff88318323>] :ipmisensors:ipmisensors_build_sysfs+0x0/0x8ed > [<ffffffff80243938>] run_workqueue+0x82/0x111 > [<ffffffff8024423e>] worker_thread+0xd5/0xe0 > [<ffffffff80246a44>] autoremove_wake_function+0x0/0x2e > [<ffffffff80244169>] worker_thread+0x0/0xe0 > [<ffffffff8024691b>] kthread+0x47/0x74 > [<ffffffff8023036d>] schedule_tail+0x27/0x5c > [<ffffffff8020ce08>] child_rip+0xa/0x12 > [<ffffffff802468d4>] kthread+0x0/0x74 > [<ffffffff8020cdfe>] child_rip+0x0/0x12 > > ---[ end trace 092ee9a6ca0fc199 ]--- > ipmisensors: Failed to create sysfs entry 'name'<0>general protection > fault: 0000 [1] SMP > CPU 1 > Modules linked in: ipmisensors ipmi_si ipmi_msghandler i2c_dev > sha1_generic drbd cn ipv6 video output ac battery nf_conntrack_ftp > nf_conntrack_irc xt_tcpudp ipt_LOG xt_limit xt_state nf_conntrack_ipv4 > nf_conntrack iptable_filter ip_tables x_tables bonding sg loop pcspkr > i2c_nforce2 button shpchp i2c_core pci_hotplug evdev ext3 jbd mbcache > dm_mirror dm_snapshot dm_mod raid1 md_mod sd_mod amd74xx ide_pci_generic > ide_core usbhid hid ff_memless mptsas mptscsih mptbase sata_nv > ata_generic scsi_transport_sas libata scsi_mod forcedeth tg3 ehci_hcd > ohci_hcd dock thermal processor fan [last unloaded: k8temp] > Pid: 22795, comm: sensors Not tainted 2.6.25-2-amd64 #1 > RIP: 0010:[<ffffffff8037bfee>] [<ffffffff8037bfee>] dev_attr_show > +0x20/0x44 > RSP: 0018:ffff8102224f3ea8 EFLAGS: 00010282 > RAX: 776f645f7777771c RBX: ffff810320511328 RCX: 0000000000000000 > RDX: ffff810221d44000 RSI: ffff810320511328 RDI: ffff8103231f2410 > RBP: fffffffffffffffb R08: ffff81022306ec74 R09: 000000000012076f > R10: 0000000000000000 R11: 0000000000000002 R12: ffff81009d4cdc80 > R13: ffffffff80510630 R14: ffff8100a2855d60 R15: ffff8102224f3f50 > FS: 00007fa20fa4c6e0(0000) GS:ffff81022306eb40(0000) > knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > CR2: 00007fff17a58c38 CR3: 00000002221f7000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process sensors (pid: 22795, threadinfo ffff8102224f2000, task > ffff8102224b3240) > Stack: ffff8102224f3f50 ffff8103231f2500 ffff8100a2855d40 > ffffffff802dfe5a > 00007fa20fa55000 0000000000001000 00007fa20fa55000 ffff810221dfe980 > 0000000000001000 00007fa20fa55000 ffff8102224f3f50 00000000023ef0c0 > Call Trace: > [<ffffffff802dfe5a>] ? sysfs_read_file+0xa2/0x129 > [<ffffffff8029ad10>] ? vfs_read+0xaa/0x152 > [<ffffffff8029b0f1>] ? sys_read+0x45/0x6e > [<ffffffff8020bd9a>] ? system_call_after_swapgs+0x8a/0x8f > > > Code: 5c e9 7e 52 f6 ff 5b 5d 41 5c c3 55 48 c7 c5 fb ff ff ff 53 48 89 > f3 48 83 ec 08 48 8b 46 18 48 85 c0 74 24 48 81 ef f0 00 00 00 <ff> d0 > 48 3d ff 0f 00 00 48 89 c5 7e 10 48 8b 73 18 48 c7 c7 58 > RIP [<ffffffff8037bfee>] dev_attr_show+0x20/0x44 > RSP <ffff8102224f3ea8> > ---[ end trace 092ee9a6ca0fc199 ]--- > > * Temperatures are divided by 10, except the first one, compared to the > right temperature. That's something that is easy to correct with > sensors.conf though. > > * More important, the fan speeds are incorrectly reported. The first fan > is always at 0, and the last one is missing (a kind of > zero-based/one-based mismatch somewhere I guess). > > Here is the sensors report: > bmc-isa-14db > Adapter: ISA adapter > Vcc 3.3V STB: +1.42 V (min = +2.80 V, max = +3.79 V) > Vcc 5V: +4.40 V (min = +4.40 V, max = +5.59 V) > Vcc 3.3V: +3.66 V (min = +2.80 V, max = +3.79 V) > DDRP1 1.8V: +1.62 V (min = +1.58 V, max = +2.02 V) > DDRP0 1.8V: +1.82 V (min = +1.58 V, max = +2.02 V) > Vcc 12V: +12.08 V (min = +10.55 V, max = +13.41 V) > Axial Fan 1: 0 RPM (min = 2272 RPM) > Axial Fan 0: 9656 RPM (min = 2272 RPM) > Blower Fan 1: 5488 RPM (min = 784 RPM) > Blower Fan 0: 3488 RPM (min = 784 RPM) > Ambient Temp1: +23.1?C (low = +0.0?C, high = +7.5?C) > Ambient Temp0: +4.3?C (low = +0.0?C, high = +7.5?C) > CPU 1 Temp: +3.4?C (low = +0.0?C, high = +9.5?C) > CPU 0 Temp: +4.0?C (low = +0.0?C, high = +9.5?C) > > Here is the ipmitool report to compare: > CPU 0 Temp | 40.000 | degrees C | ok | na | na | > na | 93.000 | 95.000 | na CPU 1 Temp | 44.000 | > degrees C | ok | na | na | na | 93.000 | > 95.000 | na Ambient Temp0 | 34.000 | degrees C | ok | na > | na | na | 70.000 | 75.000 | na Ambient Temp1 | > 43.000 | degrees C | ok | na | na | na | > 70.000 | 75.000 | na Vcc 12V | 12.243 | Volts | ok > | na | 10.547 | 10.759 | 13.197 | 13.409 | na DDRP0 > 1.8V | 1.816 | Volts | ok | na | 1.584 | > 1.616 | 1.976 | 2.016 | na DDRP1 1.8V | 1.824 | > Volts | ok | na | 1.584 | 1.616 | 1.976 | > 2.016 | na Vcc 3.3V | 3.248 | Volts | ok | na > | 2.800 | 2.960 | 3.616 | 3.792 | na Vcc 5V | > 5.060 | Volts | ok | na | 4.400 | 4.488 | > 5.500 | 5.588 | na Vcc 3.3V STB | 3.168 | Volts | ok > | na | 2.800 | 2.960 | 3.616 | 3.792 | na Blower Fan > 0 | 3488.800 | RPM | ok | na | 784.000 | na | > na | 8976.800 | na Blower Fan 1 | 3567.200 | RPM | ok > | na | 784.000 | na | na | 8976.800 | na Axial Fan > 0 | 9656.000 | RPM | ok | na | 2272.000 | na > | na | 15975.000 | na Axial Fan 1 | 9656.000 | RPM | > ok | na | 2272.000 | na | na | 15975.000 | na > > I also have all the output from the module available on request. > > Is there a new ipmisensors version somewhere? The webpage mentions a git > repository, but I couldn't find it. > > Many thanks, As a workaround you could do the following: in snmpd.conf specify a line like this for each sensor you are interested in: sh [MIBOID] NAME /usr/local/bin/read_sensor.sh NAME NAME should be as ipmitool sensors reports the sensor names, and in quotes if they contain white spaces. then create a script that reads out the sensors using ipmitool: #!/bin/bash echo `ipmitool sensor reading "${1}" | cut -d "|" -f2 | tr -d" "` Another option might be the snmp functionality in OpenIPMI, but I never tried that out. -- Mit freundlichen Gruessen, kind regards, Christian Krafft Linux Kernel Development IBM Systems & Technology Group Phone: +49-07031-16-2032 IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Martin Jetter Geschaetsfuehung: Herbert Kircher Sitz der Gesellschaft: Boelingen Registergericht: Amtsgericht Stuttgart, HRB 243294 -------------- next part -------------- A non-text attachment was scrubbed... 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