[Nut-upsuser] (bump) Runaway apcsmart process

[Bill Arlofski]

Ping... Any thoughts on this?


----- "Bill Arlofski" <waa-nut at revpol.com> wrote:
> On several occasions I have seen the apcsmart process runaway using
> 100% CPU
> while filling my syslog partition by logging the following syslog
> entries at
> an incredible rate. I have seen up to 21,800 log entries PER SECOND of
> the
> following nature:
> 
> 
> --[snip]--
> Jun 25 10:06:38 servername apcsmart[4012]: Communications with UPS
> lost:
> Communications with UPS lost - check cabling
> Jun 25 10:06:38 servername apcsmart[4012]: smartmode: ser_send_char
> failed:
> Input/output error
> Jun 25 10:06:38 servername apcsmart[4012]: smartmode: ser_send_char
> failed:
> Input/output error
> Jun 25 10:06:38 servername apcsmart[4012]: smartmode: ser_send_char
> failed:
> Input/output error
> Jun 25 10:06:38 servername apcsmart[4012]: smartmode: ser_send_char
> failed:
> Input/output error
> Jun 25 10:06:38 servername apcsmart[4012]: smartmode: ser_send_char
> failed:
> Input/output error
> Jun 25 10:06:38 servername apcsmart[4012]: smartmode: ser_send_char
> failed:
> Input/output error
> Jun 25 10:06:38 servername apcsmart[4012]: smartmode: ser_send_char
> failed:
> Input/output error
> Jun 25 10:06:38 servername apcsmart[4012]: smartmode: ser_send_char
> failed:
> Input/output error
> Jun 25 10:06:38 servername apcsmart[4012]: smartmode: ser_send_char
> failed:
> Input/output error
> Jun 25 10:06:38 servername apcsmart[4012]: smartmode: ser_send_char
> failed:
> Input/output error
> --[snip]--
> 
> 
> There is nothing wrong with the cabling, and nut runs fine until this
> begins.
> If I kill apcsmart and then restart the nut ups driver everything goes
> back to
> normal for days or weeks or months at a time.
> 
> I am using nut v2.4.1-r1 on a Gentoo Linux system with a 2.6.27 kernel
> on an
> AMD Athlon X2 64bit dual core system.
> 
> Any thoughts?  What other information can I provide to help diagnose
> and
> hopefully solve this issue?
> 
> Thanks!
> 
> --
> Bill Arlofski
> Reverse Polarity, LLC
> http://www.revpol.com/
> 
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