Re: [Freeipmi-users] Problem with a semaphore :-)

[Albert Chu]

Hi,

> semget(33783988, 1, IPC_CREAT|IPC_EXCL|0600) = -1 EEXIST (File exists)
> semget(33783988, 1, IPC_CREAT|0600)     = 0

This is ok.  The first semget failed, but the 2nd attempt suceeded.

> nanosleep({0, 1000}, NULL)              = 0
> nanosleep({0, 1000}, NULL)              = 0

This however indicates the poll loop is spinning way too much.

> address@hidden ~]# dmesg | grep ipmi
> ipmi message handler version 33.11
> ipmi_si: Found SMBIOS-specified state machine at I/O address 0xca8, 
> slave address 0x20
> ipmi device interface version 33.11
> ipmi device interface version 33.11

Do you happen to have the OpenIPMI IPMI drivers installed on your box? 
FreeIPMI doesn't use them.  So it's possible our library's driver is
being interfered with the OpenIPMI drivers.

Al

--
Albert Chu
address@hidden
925-422-5311
Computer Scientist
High Performance Systems Division
Lawrence Livermore National Laboratory


----- Original Message -----
From: Massimiliano Masi <address@hidden>
Date: Monday, June 12, 2006 0:40 am
Subject: [Freeipmi-users] Problem with a semaphore :-)

> Hello, 
> 
> I'm trying to set up FreeIPMI on a Scientific Linux Cern (RHEL) 4,
> with this kernel:
> 
> Linux lxdev14.cern.ch 2.6.9-34.EL.cernsmp #1 SMP Sun Mar 12 
> 12:46:00 CET 2006 i686 i686 i386 GNU/Linux
> 
> and this version:
> 
> address@hidden ~]# dmesg | grep ipmi
> ipmi message handler version 33.11
> ipmi_si: Found SMBIOS-specified state machine at I/O address 0xca8, 
> slave address 0x20
> ipmi device interface version 33.11
> ipmi device interface version 33.11
> 
> and with this controller:
> 
> 00:1f.3 SMBus: Intel Corporation 6300ESB SMBus Controller (rev 02)
> Handle 0x003B
>        DMI type 38, 18 bytes.
>        IPMI Device Information
>                Interface Type: KCS (Keyboard Control Style)
>                Specification Version: 2.0
>                I2C Slave Address: 0x10
>                NV Storage Device: Not Present
>                Base Address: 0x0000000000000CA8 (I/O)
>                Register Spacing: 32-bit Boundaries
> 
> 
> When I try to run bmc-info, it hangs, and strace says:
> 
> getuid32()                              = 0
> setrlimit(RLIMIT_CORE, {rlim_cur=RLIM_INFINITY, 
> rlim_max=RLIM_INFINITY}) = 0
> brk(0)                                  = 0x9790000
> brk(0x97b1000)                          = 0x97b1000
> open("/dev/mem", O_RDONLY|O_SYNC)       = 3
> mmap2(NULL, 65536, PROT_READ, MAP_PRIVATE, 3, 0xf0) = 0xb7f70000
> close(3)                                = 0
> open("/dev/mem", O_RDONLY|O_SYNC)       = 3
> mmap2(NULL, 3236, PROT_READ, MAP_PRIVATE, 3, 0xfa) = 0xb7f6f000
> close(3)                                = 0
> munmap(0xb7f6f000, 3236)                = 0
> munmap(0xb7f70000, 65536)               = 0
> iopl(0x3)                               = 0
> stat64("/var/lib/freeipmi/ipckey", {st_mode=S_IFREG|0644, 
> st_size=0, ...}) = 0
> semget(33783988, 1, IPC_CREAT|IPC_EXCL|0600) = -1 EEXIST (File exists)
> semget(33783988, 1, IPC_CREAT|0600)     = 0
> semop(0, 0x4cb082, 1)                   = 0
> nanosleep({0, 1000}, NULL)              = 0
> nanosleep({0, 1000}, NULL)              = 0
> nanosleep({0, 1000}, NULL)              = 0
> nanosleep({0, 1000}, NULL)              = 0
> 
> and so on.
> 
> Any ideas???
> 
> Thank you!
> 
> -- 
> Massimiliano Masi
> 
> http://gauss.comunidelchianti.it/~max
> 
> 
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