Bug in Digital UNIX with Shared Memory

In article <5kb487$lba@cssun.mathcs.emory.edu>, I wrote about some compile time errors I was having : > We were having 4GL compile time errors (assert fail) with a DEC Alpha > running: > O/S: Digital UNIX V4.0A > OnLine DS: V7.22.FC2 > I4GL RDS: V6.04.UC1 > NETTYPE: onsoctcp (which seems to be getting changed in the onconfig > file to "soctcp,,,") and about mail I received alerting me to a potential problem in Digital UNIX V4.0 and later versions of the OS, and the work-around (disabling the new-wire-method option, which is on by default in the 4.0A version of the O/S): > A data corruption problem can occur when the parameter new-wire-method > is turned on. The new-wire-method parameter is only available in V4.0 > and later releases. All versions V4.0 and later ship with the default > being new-wire-method enabled. The new-wire-method bug appears to be a fairly new. > Digital UNIX > Engineering is investigating the exact cause of the problem; however, > until we fully understand the circumstances surrounding this, you should > follow the recommended workaround detailed below. > > All I know right now, is that under very heavy loads (with OPS and DRD) > this data corruption problem can occur. Even if you are not running > Oracle Parallel Server, we recommend you implement the workaround > because we don't fully know the cause of the problem. Systems running > Digital UNIX V3.2x are not affected by this problem. > > BLITZ TITLE: DIGITAL UNIX DATA CORRUPTION WITH SHARED MEMORY [snip] > It is the Strong Recommendation of Digital UNIX Engineering that > this workaround be implemented on all systems running Digital UNIX > V4.0 and above. Failure to do so can result in undetected data > corruption. In article : <WkG0yFAEcQbzEwsK@smooth1.demon.co.uk>, David Williams <djw@smooth1.demon.co.uk> writes: > Digital...Oh you mean DEC...I once installed Online 5.0 on a dec Alpha > running OFS/1. The release note mention that a special patch was done > by Dec at Informix's request!!. The notes said phone Dec and ask for > "The Database Patch".... The ONLINE_7.2 OS Release notes only mention: 6. OS Patch information: OS version is Digital UNIX V3.2D. The KAIO patch from DEC is required. The patch number for various OS versions are: OS v3.2de1 OSF360-070 OS v3.2de2 OSF365-360070 OS v3.2f OSF370-360070 OS v3.2g OSF375-360070 For OS v4.0 and up, this patch comes with the OS. So, I think "The Database Patch" is something else. -- _____________________________________________________________________ | Colin McGrath cmm@trac3000.ueci.com | | Raytheon Engineers & Constructors, Inc. (215) 422-4144 | | Phila, PA, USA Standard Disclaimers Apply | |___________________________________________________________________|