Boot OK Installed SMP --------> Boot OK Installed rs506a -----> Hang after second CPU initialization. Using <4GB of SWAP, all works fine. ...... the problem is not related to Operating system OSr5.0.6 but it is a problem with the Adaptec 3200S Raid controller OSr5 driver ver. 1.13. I have tried with other disk controller like Mylex EXR2000 / AR352 Raid controllers and I saw no problems at all when using 4GB SWAP area. Therefore, it looks like there is an issue with the dpti5 ver. 1.13 driver. This driver is Vendor Adaptec supported. S.Marquardt [allowsmilie] => 1 [showsignature] => 0 [ipaddress] => [iconid] => 0 [visible] => 1 [attach] => 0 [infraction] => 0 [reportthreadid] => 0 [isusenetpost] => 1 [msgid] => [ref] => <5krqlvkmh8ss0q0hv8mq2ppvkdqe3q7va8@4ax.com> <20030909070630.GG24551@sco.com> [htmlstate] => on_nl2br [postusername] => Stefan [ip] => erase-this.stef [isdeleted] => 0 [usergroupid] => [membergroupids] => [displaygroupid] => [password] => [passworddate] => [email] => [styleid] => [parentemail] => [homepage] => [icq] => [aim] => [yahoo] => [msn] => [skype] => [showvbcode] => [showbirthday] => [usertitle] => [customtitle] => [joindate] => [daysprune] => [lastvisit] => [lastactivity] => [lastpost] => [lastpostid] => [posts] => [reputation] => [reputationlevelid] => [timezoneoffset] => [pmpopup] => [avatarid] => [avatarrevision] => [profilepicrevision] => [sigpicrevision] => [options] => [akvbghsfs_optionsfield] => [birthday] => [birthday_search] => [maxposts] => [startofweek] => [referrerid] => [languageid] => [emailstamp] => [threadedmode] => [autosubscribe] => [pmtotal] => [pmunread] => [salt] => [ipoints] => [infractions] => [warnings] => [infractiongroupids] => [infractiongroupid] => [adminoptions] => [profilevisits] => [friendcount] => [friendreqcount] => [vmunreadcount] => [vmmoderatedcount] => [socgroupinvitecount] => [socgroupreqcount] => [pcunreadcount] => [pcmoderatedcount] => [gmmoderatedcount] => [assetposthash] => [fbuserid] => [fbjoindate] => [fbname] => [logintype] => [fbaccesstoken] => [newrepcount] => [vbseo_likes_in] => [vbseo_likes_out] => [vbseo_likes_unread] => [temp] => [field1] => [field2] => [field3] => [field4] => [field5] => [subfolders] => [pmfolders] => [buddylist] => [ignorelist] => [signature] => [searchprefs] => [rank] => [icontitle] => [iconpath] => [avatarpath] => [hascustomavatar] => 0 [avatardateline] => [avwidth] => [avheight] => [edit_userid] => [edit_username] => [edit_dateline] => [edit_reason] => [hashistory] => [pagetext_html] => [hasimages] => [signatureparsed] => [sighasimages] => [sigpic] => [sigpicdateline] => [sigpicwidth] => [sigpicheight] => [postcount] => 3 [islastshown] => [isfirstshown] => [attachments] => [allattachments] => ) --> Boot OK > Installed SMP --------> Boot OK > Installed rs506a -----> Hang after second CPU initialization. > > Using <4GB of SWAP, all works fine.[/ref] This sounds like a problem that was recently fixed (fix is in OSR507MP1). It is a race condition in swap initialization. Not specific to a particular size, just more likely to happen the larger swap is. A workaround is to boot with "swap=none" (added to DEFBOOTSTR); then, once the system is up (e.g. in one of the rc scripts) run `swap -a /dev/swap`. [ref] > the problem > is not related to Operating system OSr5.0.6 but it is a problem with > the Adaptec 3200S > Raid controller OSr5 driver ver. 1.13. > I have tried with other disk controller like Mylex EXR2000 / AR352 > Raid controllers and I saw no problems at all when using 4GB SWAP > area. > Therefore, it looks like there is an issue with the dpti5 ver. 1.13 > driver. > This driver is Vendor Adaptec supported.[/ref] The race condition could be affected by this driver -- not the driver's fault, just a bit of bad luck. If the workaround of booting with no swap, adding swap later, fixes the problem, then it was not a driver bug. [ref] >Bela<[/ref] [allowsmilie] => 1 [showsignature] => 0 [ipaddress] => [iconid] => 0 [visible] => 1 [attach] => 0 [infraction] => 0 [reportthreadid] => 0 [isusenetpost] => 1 [msgid] => <20030909103733.GI24551@sco.com> [ref] => <5krqlvkmh8ss0q0hv8mq2ppvkdqe3q7va8@4ax.com> <20030909070630.GG24551@sco.com> [htmlstate] => on_nl2br [postusername] => Bela [ip] => belal@sco.com [isdeleted] => 0 [usergroupid] => [membergroupids] => [displaygroupid] => [password] => [passworddate] => [email] => [styleid] => [parentemail] => [homepage] => [icq] => [aim] => [yahoo] => [msn] => [skype] => [showvbcode] => [showbirthday] => [usertitle] => [customtitle] => [joindate] => [daysprune] => [lastvisit] => [lastactivity] => [lastpost] => [lastpostid] => [posts] => [reputation] => [reputationlevelid] => [timezoneoffset] => [pmpopup] => [avatarid] => [avatarrevision] => [profilepicrevision] => [sigpicrevision] => [options] => [akvbghsfs_optionsfield] => [birthday] => [birthday_search] => [maxposts] => [startofweek] => [referrerid] => [languageid] => [emailstamp] => [threadedmode] => [autosubscribe] => [pmtotal] => [pmunread] => [salt] => [ipoints] => [infractions] => [warnings] => [infractiongroupids] => [infractiongroupid] => [adminoptions] => [profilevisits] => [friendcount] => [friendreqcount] => [vmunreadcount] => [vmmoderatedcount] => [socgroupinvitecount] => [socgroupreqcount] => [pcunreadcount] => [pcmoderatedcount] => [gmmoderatedcount] => [assetposthash] => [fbuserid] => [fbjoindate] => [fbname] => [logintype] => [fbaccesstoken] => [newrepcount] => [vbseo_likes_in] => [vbseo_likes_out] => [vbseo_likes_unread] => [temp] => [field1] => [field2] => [field3] => [field4] => [field5] => [subfolders] => [pmfolders] => [buddylist] => [ignorelist] => [signature] => [searchprefs] => [rank] => [icontitle] => [iconpath] => [avatarpath] => [hascustomavatar] => 0 [avatardateline] => [avwidth] => [avheight] => [edit_userid] => [edit_username] => [edit_dateline] => [edit_reason] => [hashistory] => [pagetext_html] => [hasimages] => [signatureparsed] => [sighasimages] => [sigpic] => [sigpicdateline] => [sigpicwidth] => [sigpicheight] => [postcount] => 6 [islastshown] => 1 [isfirstshown] => [attachments] => [allattachments] => ) --> >2GB RAM (swap) OS 5.0.6/7 - SCO

>2GB RAM (swap) OS 5.0.6/7 - SCO

Hello, we was told from somebody at SCO support that actual fast hosts with RAM >2GB (swap >2GB) isn't supported from SCO 5.0.6/7 With RAM >2GB and RS 5.0.6 we had often booting problems after reducing swap to 2GB the errors vanished. But how could be written a dump after a crash to a swap < RAM ? S.Marquardt...

  1. #1

    Default >2GB RAM (swap) OS 5.0.6/7

    Hello,

    we was told from somebody at SCO support that actual fast hosts with
    RAM >2GB (swap >2GB) isn't supported from SCO 5.0.6/7

    With RAM >2GB and RS 5.0.6 we had often booting problems after
    reducing swap to 2GB the errors vanished.
    But how could be written a dump after a crash to a swap < RAM ?

    S.Marquardt
    Stefan Guest

  2. #2

    Default Re: >2GB RAM (swap) OS 5.0.6/7

    Stefan Marquardt wrote:
     

    Who told you that? 4GB RAM and swap is supported with OpenServer 5.0.6
    and 5.0.7. Each release has ongoing bug fixes; for instance, 5.0.7 is
    better at writing crash dumps >2GB.

    Since OpenServer doesn't currently support files larger than 2GB, you
    cannot set up swap to a _file_ over 2GB.
     

    What kind of booting problems?
     

    It can't be. You have a couple of options, though. You can make an
    additional 4GB division (call it "dump"). Then tell the kernel that's
    where to dump: either "dump=hd(44)" (replace "44" with the actual minor
    number of /dev/dump); or make the change in /etc/conf/cf.d/sassign.

    Or you can dump to tape, again using either "dump=Stp(0)" or
    sassign(F).
     
    Bela Guest

  3. #3

    Default Re: >2GB RAM (swap) OS 5.0.6/7

    On Tue, 9 Sep 2003 07:06:30 GMT, Bela Lubkin <com> wrote:
     
    >
    >Who told you that? 4GB RAM and swap is supported with OpenServer 5.0.6
    >and 5.0.7. Each release has ongoing bug fixes; for instance, 5.0.7 is
    >better at writing crash dumps >2GB.
    >
    >Since OpenServer doesn't currently support files larger than 2GB, you
    >cannot set up swap to a _file_ over 2GB.

    >
    >What kind of booting problems?[/ref]


    My setting of the H250 in Watford
    HW:
    H250 + 2x 2.4 GHz CPU + 2 GB RAM
    Adaptec 3200S + 2x9 GB Disks

    SW:
    OSr5.0.6 + dpti5 ver. 1.13 + SWAP 4096 MB

    Founding:
    Installed OSr5.0.6 ---> Boot OK
    Installed SMP --------> Boot OK
    Installed rs506a -----> Hang after second CPU initialization.

    Using <4GB of SWAP, all works fine.

    ......

    the problem
    is not related to Operating system OSr5.0.6 but it is a problem with
    the Adaptec 3200S
    Raid controller OSr5 driver ver. 1.13.
    I have tried with other disk controller like Mylex EXR2000 / AR352
    Raid controllers and I saw no problems at all when using 4GB SWAP
    area.
    Therefore, it looks like there is an issue with the dpti5 ver. 1.13
    driver.
    This driver is Vendor Adaptec supported.

    S.Marquardt
    Stefan Guest

  4. #4

    Default Re: >2GB RAM (swap) OS 5.0.6/7

    On Tue, 9 Sep 2003 07:06:30 GMT, Bela Lubkin <com> wrote:
     

    Where can i set this under SCO OS 5.0.5 als default for booting?

    With linux i would use /etc/lilo.conf

    S.Marquardt

    Stefan Guest

  5. #5

    Default Re: >2GB RAM (swap) OS 5.0.6/7

    Stefan Marquardt wrote:
     
    >
    > Where can i set this under SCO OS 5.0.5 als default for booting?
    >
    > With linux i would use /etc/lilo.conf[/ref]

    You can add it to the DEFBOOTSTR line in /etc/default/boot.
     
    Bela Guest

  6. #6

    Default Re: >2GB RAM (swap) OS 5.0.6/7

    Stefan Marquardt wrote:
     [/ref]
    >
    > My setting of the H250 in Watford
    > HW:
    > H250 + 2x 2.4 GHz CPU + 2 GB RAM
    > Adaptec 3200S + 2x9 GB Disks
    >
    > SW:
    > OSr5.0.6 + dpti5 ver. 1.13 + SWAP 4096 MB
    >
    > Founding:
    > Installed OSr5.0.6 ---> Boot OK
    > Installed SMP --------> Boot OK
    > Installed rs506a -----> Hang after second CPU initialization.
    >
    > Using <4GB of SWAP, all works fine.[/ref]

    This sounds like a problem that was recently fixed (fix is in
    OSR507MP1). It is a race condition in swap initialization. Not
    specific to a particular size, just more likely to happen the larger
    swap is. A workaround is to boot with "swap=none" (added to
    DEFBOOTSTR); then, once the system is up (e.g. in one of the rc scripts)
    run `swap -a /dev/swap`.
     

    The race condition could be affected by this driver -- not the driver's
    fault, just a bit of bad luck. If the workaround of booting with no
    swap, adding swap later, fixes the problem, then it was not a driver
    bug.
     
    Bela Guest

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