Re: [CentOS] odd dmesg entries

2014-09-22 Thread Warren Young 

On 9/21/2014 12:50, John R Pierce wrote:

every so often, I'm seeing these in my dmesg output, and I'm not sure
what they are?

host[32625]: segfault at 0 ip 0040abb8 sp 7ff59d36bd40 error
4 in host[40+1b000]
host[24560]: segfault at 0 ip 0040abb8 sp 7f4fa1c4bd40 error
4 in host[40+1b000]
host[8354]: segfault at 0 ip 0040abb8 sp 7fa07330dd40 error
4 in host[40+1b000]


Normally the in $foo bit at the end names a program or library.  I 
wonder if the host[$foo+$bar] syntax revers to a KVM guest?


It's odd that it's correlated in time with some automatic software RAID 
check you've got going there.  Is the order segfault-then-md as a 
closely-spaced pair, followed by a gap in time?


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[CentOS] odd dmesg entries

2014-09-21 Thread John R Pierce 
every so often, I'm seeing these in my dmesg output, and I'm not sure 
what they are?


host[32625]: segfault at 0 ip 0040abb8 sp 7ff59d36bd40 error 
4 in host[40+1b000]
host[24560]: segfault at 0 ip 0040abb8 sp 7f4fa1c4bd40 error 
4 in host[40+1b000]
host[8354]: segfault at 0 ip 0040abb8 sp 7fa07330dd40 error 
4 in host[40+1b000]




in situ, the tail of dmesg looks like...

md: data-check of RAID array md0
md: minimum _guaranteed_  speed: 1000 KB/sec/disk.
md: using maximum available idle IO bandwidth (but not more than 20 
KB/sec) for data-check.

md: using 128k window, over a total of 1953383232k.
md: md0: data-check done.
host[8758]: segfault at 0 ip 0040abb8 sp 7f9b7914ed40 error 
4 in host[40+1b000]
host[15122]: segfault at 0 ip 0040abb8 sp 7f63edccad40 error 
4 in host[40+1b000]

UDP: bad checksum. From 71.6.167.142:4 to 207.111.214.246:44818 ulen 32
md: data-check of RAID array md0
md: minimum _guaranteed_  speed: 1000 KB/sec/disk.
md: using maximum available idle IO bandwidth (but not more than 20 
KB/sec) for data-check.

md: using 128k window, over a total of 1953383232k.
md: md0: data-check done.
host[32625]: segfault at 0 ip 0040abb8 sp 7ff59d36bd40 error 
4 in host[40+1b000]
host[24560]: segfault at 0 ip 0040abb8 sp 7f4fa1c4bd40 error 
4 in host[40+1b000]
host[8354]: segfault at 0 ip 0040abb8 sp 7fa07330dd40 error 
4 in host[40+1b000]

md: data-check of RAID array md0
md: minimum _guaranteed_  speed: 1000 KB/sec/disk.
md: using maximum available idle IO bandwidth (but not more than 20 
KB/sec) for data-check.

md: using 128k window, over a total of 1953383232k.
md: md0: data-check done.


--
john r pierce  37N 122W
somewhere on the middle of the left coast

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