sslug-teknik team mailing list archive

[Jørgen Heesche <heesche@xxxxxxxxxxx>]

Robert Larsen wrote:
> Hej
>
> Jeg har problemer med min VMWare Workstation. Den brokker sig over ikke
> at kunne åbne /dev/rtc, og resultatet er, at den mister et par timer i
> døgnet, hvilket er helt uacceptabelt da jeg tester nogle programmer, som
> er meget afhængige af rimelig præcise timere.
>
> Jeg har tjekket permissions, og kan ikke se nogen problemer der:
> robert-desktop:~/code $ ls -l /dev/rtc
> crw-rw---- 1 root audio 10, 135 2007-11-06 11:11 /dev/rtc
> robert-desktop:~/code $ groups
> robert adm dialout cdrom floppy audio dip video plugdev netdev lpadmin
> powerdev scanner admin
> robert-desktop:~/code $ dmesg|tail
> [779570.346335] vmmon: Had to deallocate AWE 4171 pages from vm driver
> cee61000
> [780551.196204] /dev/vmnet: open called by PID 11983 (vmware-vmx)
> [780551.196235] device eth0 entered promiscuous mode
> [780551.196244] audit(1195818259.729:158): dev=eth0 prom=256 old_prom=0
> auid=4294967295
> [780551.196248] bridge-eth0: enabled promiscuous mode
> [780551.196251] /dev/vmnet: port on hub 0 successfully opened
> [780551.297794] /dev/vmmon[11987]: host clock rate change request 0 -> 19
> [780551.297968] /dev/vmmon[11987]: host clock rate change request 19 -> 83
> [780587.009072] /dev/vmmon[11987]: host clock rate change request 83 -> 1043
> [780587.009093] /dev/vmmon[11987]: /dev/rtc open failed: -16
> robert-desktop:~/code $
>
> Eftersom vmmon er et modul i kernen, mener jeg ikke, at der burde være
> problemer med rettigheder, men jeg har også prøvet en chmod 666 på
> /dev/rtc (og en chmod 777), men intet virker.
> Ved I hvad jeg gør forkert ?
>
> VH og god weekend
> Robert
Jeg har ikke wmware, men der er noget om wmware og timeproblemer her:

http://communities.vmware.com/message/363527

/dev/vmmon[9291]: host clock rate change request 83 -> 1043
/dev/vmmon[9291]: /dev/rtc open failed: -19
.
.
It basically means that VMware was not able to open your /dev/rtc 
device, either because your kernel doesn't support it or because some 
other program is using it. Timekeeping in VMs will work better if you 
have /dev/rtc, so you may want to reconfigure your kernel to support it.
This paper will explain this and lots more:
http://www.vmware.com/pdf/vmware_timekeeping.pdf


--
Med venlig hilsen

Jørgen Heesche
mailto:heesche@xxxxxxxxxxx