[lm-sensors] Re: General Protection Fault with bcmsensors

Yani Ioannou yani.ioannou at gmail.com
Mon Aug 8 19:24:55 CEST 2005


On 8/8/05, Martin Drab <drab at kepler.fjfi.cvut.cz> wrote:
> Hi,
> 
> I'm getting following general protection fault with bmcsensors and
> i2c-ipmi obtained from today's CVS and with 2.6.13-rc6 kernel. After that
> system doesn't seem to hang immediatelly (as I was able to do the dmesg
> below), however it seems that the internal IPMI watchdog restarted the
> system after a while (or perhaps it did it on its own?), since it did
> reboot then.
> 
> ---------------
> [  957.987401] bmcsensors.o
> [  957.998712] i2c-ipmi.o
> [  957.998719] i2c-ipmi.o: BMC access for i2c modules initialized.
> [  958.001767] ipmi device interface version v33
> [  958.004867] IPMI System Interface driver version v33, KCS version v33, SMIC version v33, BT version v33
> [  958.005264] ipmi_si: Found SMBIOS-specified state machine at I/O address 0xca2, slave address 0x20
> [  959.172987] bmcsensors.o: Registered client, scanning for sensors...
> [  959.172995] i2c-ipmi.o: Registered IPMI interface 0 with version 1.5
> [  959.451432] IPMI Watchdog: Starting now!
> [  959.451445]  IPMI kcs interface initialized
> [  987.802234] bmcsensors.o: all sensors detected
> [  987.802260] bmcsensors.o: registering sensor 0: (type 0x01) (fmt=0; m=1; b=0; k1=0; k2=0; cap=0x76; mask=0x003f)
> [  987.802264] bmcsensors.o: sensors.conf: label temp1 "Planar Temp 1"
> [  987.802267] bmcsensors.o: using upper critical threshold for upper limit
> [  987.802270] bmcsensors.o: using lower critical threshold for lower limit
> [  987.802279] bmcsensors.o: registering sensor 1: (type 0x01) (fmt=0; m=1; b=0; k1=0; k2=0; cap=0x76; mask=0x003f)
> [  987.802281] bmcsensors.o: sensors.conf: label temp2 "Planar Temp 2"
> [  987.802283] bmcsensors.o: using upper critical threshold for upper limit
> [  987.802286] bmcsensors.o: using lower critical threshold for lower limit
> [  987.802291] bmcsensors.o: registering sensor 2: (type 0x01) (fmt=0; m=1; b=0; k1=0; k2=0; cap=0x76; mask=0x003f)
> [  987.802294] bmcsensors.o: sensors.conf: label temp3 "CPU 2 Temp"
> [  987.802296] bmcsensors.o: using upper critical threshold for upper limit
> [  987.802298] bmcsensors.o: using lower critical threshold for lower limit
> [  987.802306] bmcsensors.o: registering sensor 3: (type 0x01) (fmt=0; m=1; b=0; k1=0; k2=0; cap=0x76; mask=0x003f)
> [  987.802309] bmcsensors.o: sensors.conf: label temp4 "CPU 1 Temp"
> [  987.802311] bmcsensors.o: using upper critical threshold for upper limit
> [  987.802313] bmcsensors.o: using lower critical threshold for lower limit
> [  987.802319] bmcsensors.o: registering sensor 4: (type 0x02) (fmt=0; m=63; b=0; k1=0; k2=13; cap=0x76; mask=0x003f)
> [  987.802321] bmcsensors.o: sensors.conf: label in1 "Planar 12V"
> [  987.802323] bmcsensors.o: using upper critical threshold for upper limit
> [  987.802325] bmcsensors.o: using lower critical threshold for lower limit
> [  987.802331] bmcsensors.o: registering sensor 5: (type 0x02) (fmt=0; m=12; b=0; k1=0; k2=13; cap=0x76; mask=0x003f)
> [  987.802334] bmcsensors.o: sensors.conf: label in2 "CPU 2 VCore"
> [  987.802336] bmcsensors.o: using upper critical threshold for upper limit
> [  987.802338] bmcsensors.o: using lower critical threshold for lower limit
> [  987.802344] bmcsensors.o: registering sensor 6: (type 0x02) (fmt=0; m=13; b=0; k1=0; k2=13; cap=0x76; mask=0x003f)
> [  987.802346] bmcsensors.o: sensors.conf: label in3 "CPU 2 2.5V"
> [  987.802348] bmcsensors.o: using upper critical threshold for upper limit
> [  987.802350] bmcsensors.o: using lower critical threshold for lower limit
> [  987.802356] bmcsensors.o: registering sensor 7: (type 0x02) (fmt=0; m=26; b=0; k1=0; k2=13; cap=0x76; mask=0x003f)
> [  987.802359] bmcsensors.o: sensors.conf: label in4 "Planar 5VSB"
> [  987.802361] bmcsensors.o: using upper critical threshold for upper limit
> [  987.802363] bmcsensors.o: using lower critical threshold for lower limit
> [  987.802369] bmcsensors.o: registering sensor 8: (type 0x02) (fmt=0; m=12; b=0; k1=0; k2=13; cap=0x76; mask=0x003f)
> [  987.802371] bmcsensors.o: sensors.conf: label in5 "CPU 1 VCore"
> [  987.802373] bmcsensors.o: using upper critical threshold for upper limit
> [  987.802375] bmcsensors.o: using lower critical threshold for lower limit
> [  987.802381] bmcsensors.o: registering sensor 9: (type 0x02) (fmt=0; m=13; b=0; k1=0; k2=13; cap=0x76; mask=0x003f)
> [  987.802384] bmcsensors.o: sensors.conf: label in6 "CPU 1 2.5V"
> [  987.802386] bmcsensors.o: using upper critical threshold for upper limit
> [  987.802388] bmcsensors.o: using lower critical threshold for lower limit
> [  987.802393] bmcsensors.o: registering sensor 10: (type 0x02) (fmt=0; m=26; b=0; k1=0; k2=13; cap=0x76; mask=0x003f)
> [  987.802396] bmcsensors.o: sensors.conf: label in7 "Planar 5V"
> [  987.802398] bmcsensors.o: using upper critical threshold for upper limit
> [  987.802400] bmcsensors.o: using lower critical threshold for lower limit
> [  987.802406] bmcsensors.o: registering sensor 11: (type 0x04) (fmt=0; m=29; b=0; k1=0; k2=9; cap=0x76; mask=0x003f)
> [  987.802409] bmcsensors.o: sensors.conf: label fan1 "Fan 2 Tach"
> [  987.802411] bmcsensors.o: using lower critical threshold for upper limit
> [  987.802413] bmcsensors.o: using upper critical threshold for lower limit
> [  987.802418] bmcsensors.o: registering sensor 12: (type 0x04) (fmt=0; m=29; b=0; k1=0; k2=9; cap=0x76; mask=0x003f)
> [  987.802421] bmcsensors.o: sensors.conf: label fan2 "Fan 4 Tach"
> [  987.802423] bmcsensors.o: using lower critical threshold for upper limit
> [  987.802425] bmcsensors.o: using upper critical threshold for lower limit
> [  987.802432] bmcsensors.o: registering sensor 13: (type 0x04) (fmt=0; m=29; b=0; k1=0; k2=9; cap=0x76; mask=0x003f)
> [  987.802435] bmcsensors.o: sensors.conf: label fan3 "Fan 1 Tach"
> [  987.802437] bmcsensors.o: using lower critical threshold for upper limit
> [  987.802439] bmcsensors.o: using upper critical threshold for lower limit
> [  987.802444] bmcsensors.o: registering sensor 14: (type 0x04) (fmt=0; m=29; b=0; k1=0; k2=9; cap=0x76; mask=0x003f)
> [  987.802447] bmcsensors.o: sensors.conf: label fan4 "Fan 3 Tach"
> [  987.802449] bmcsensors.o: using lower critical threshold for upper limit
> [  987.802451] bmcsensors.o: using upper critical threshold for lower limit
> [  987.802457] bmcsensors.o: registering sensor 15: (type 0x04) (fmt=0; m=29; b=0; k1=0; k2=9; cap=0x76; mask=0x003f)
> [  987.802459] bmcsensors.o: sensors.conf: label fan5 "Fan 5 Tach"
> [  987.802461] bmcsensors.o: using lower critical threshold for upper limit
> [  987.802463] bmcsensors.o: using upper critical threshold for lower limit
> [  987.802468] bmcsensors.o: 0 reservations cancelled
> [  987.802470] bmcsensors.o: registered 4 temp, 7 volt, 0 current, 5 fan sensors
> [  987.802472] bmcsensors.o: bmcsensor thread done
> [ 1007.059503] general protection fault: 0000 [1] SMP
> [ 1007.059511] CPU 1
> [ 1007.059514] Modules linked in: ipmi_si ipmi_devintf i2c_ipmi bmcsensors i2c_isa i2c_amd756 nfsd exportfs lockd nfs_acl parport_pc lp parport
> autofs4 sunrpc powernow_k8 freq_table binfmt_misc dm_mod video thermal processor hotkey fan container button battery ac ipv6 usbkbd usbhid
> ohci_hcd i2c_amd8111 i2c_core hw_random shpchp tg3 ide_cd cdrom sg usbcore ext3 jbd sd_mod
> [ 1007.059533] Pid: 3655, comm: sensors Not tainted 2.6.13-rc6
> [ 1007.059535] RIP: 0010:[<ffffffff801fed50>] <ffffffff801fed50>{strcmp+0}
> [ 1007.059547] RSP: 0018:ffff810071653cb0  EFLAGS: 00010246
> [ 1007.059552] RAX: ffff000a36343735 RBX: ffff81003596f608 RCX: ffff8100328f96d0
> [ 1007.059555] RDX: 0000000000000037 RSI: ffff8100710ac9cc RDI: ffff000a36343735
> [ 1007.059560] RBP: ffff8100328f9680 R08: 000003fa892e45c7 R09: ffff81003535301c
> [ 1007.059563] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8100710ac910
> [ 1007.059567] R13: ffff810071653d48 R14: ffff810036776d70 R15: ffff810076d33bf0
> [ 1007.059571] FS:  00002aaaaaad9e40(0000) GS:ffffffff80541880(0000) knlGS:00000000627c2bb0
> [ 1007.059574] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 1007.059577] CR2: 00002aaaadb48000 CR3: 0000000071725000 CR4: 00000000000006e0
> [ 1007.059581] Process sensors (pid: 3655, threadinfo ffff810071652000, task ffff810035c58a20)
> [ 1007.059583] Stack: ffffffff801c59d1 ffff8100710ac910 ffff810071653ed8 ffff810071653d38
> [ 1007.059590]        ffff810071653d48 ffff810036776d70 ffffffff80192565 000001b600008001
> [ 1007.059596]        ffff810037ff7080 ffff810036776cb0
> [ 1007.059599] Call Trace:<ffffffff801c59d1>{sysfs_lookup+81} <ffffffff80192565>{do_lookup+245}
> [ 1007.059614]        <ffffffff80193076>{__link_path_walk+2582} <ffffffff80193659>{link_path_walk+137}
> [ 1007.059626]        <ffffffff801818b3>{get_unused_fd+227} <ffffffff8014a509>{remove_wait_queue+25}
> [ 1007.059640]        <ffffffff80193c9d>{path_lookup+461} <ffffffff801951cc>{open_namei+172}
> [ 1007.059649]        <ffffffff8025867a>{tty_ldisc_deref+122} <ffffffff8018261d>{filp_open+45}
> [ 1007.059660]        <ffffffff80182712>{sys_open+82} <ffffffff8010dcf2>{system_call+126}
> [ 1007.059673]
> [ 1007.059678]
> [ 1007.059678] Code: 0f b6 17 89 d0 2a 06 48 ff c6 84 c0 74 04 0f be c0 c3 48 ff
> [ 1007.059687] RIP <ffffffff801fed50>{strcmp+0} RSP <ffff810071653cb0>
> [ 1007.059693]
> ---------------
> 
> Martin
> 
> 

Hi Martin,

I haven't had a chance to test the CVS version of bmcsensors yet on my
IPMI machines (hence why its not released), but it basically differs
in a patch submitted by someone to use the i2c_client addr instead of
the now defunct id.

What version of sensors are you using? It looks like its crashing
while trying to read the sysfs attributes, try cating the sysfs
entries the driver creates and see if you can see anything unusual.

Thanks,
Yani




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