Status: In Progress... Update 120510: We are now testing a private at several customers... fingers crossed this fixes this long-runner! :D Update 120417: Still ongoing, we are now awaiting verifier-enabled dumps for the crash. If you have this issue...

Status: in Progress... Update 120417: We currently have a new round of instrumentation running... fingers crossed! Update 120323: After opening an RFC for this we got new dumps with instrumentation, showing us the following call stack related to...

Status: Resolved Update 120417: Persistence pays off... ;) Finally I've got this hotfix approved, and committed for release in June timeframe (REL12-06, KB2701239)! Resolving this issue now. Yesterday I noticed an lpq.exe-related crash case in our...

Status: Resolved Update 120314: Closing the loop on this: the hotfix is now publicly available. It may take some time for the corresponding KB to be available as well. Update 120207: We have a private ready for testing. We're shipping this off to...

Great news! Have a look at http://technet.microsoft.com/en-us/magazine/hh855979.aspx to find out more and to access the FICP Beta site. Many of the issue highlighted on this blog will now be automatically diagnosed (and cured ;) )!

Status: Resolved. Update 120301: Private is approved, Public is scheduled for REL12-04, to be released mid-April. Update 120217: The private is ready! Update 120215: other customer came in hitting this, private is in the works. This should be...

Status: Resolved Update 120130: Closing the loop on this: the KB (2624677) for this is now available through Microsoft Support, the public release is scheduled for this February. Update 111116: Sonny found the issue using instrumentation/private...

Status: Resolved Update 120112: Closing the loop on this one. Finally, after some delays, the hotfix is released and available from http://support.microsoft.com/hotfix/KBHotfix.aspx?kbnum=2619041&kbln=en-us. Update 110930: The customer running...

A bit late perhaps, but nevertheless I wish you and your families a Happy New Year & All the Best for 2012! \Rob

Status: Resolved Update 111206: After discussing this with our customer they agreed to accept the workaround of increasing memory for the impacted machines. Update 110823: Finally I found the trigger for this STOP error: memory pressure. Further...

Status: Unresolved Update 111128: The customer decided to stop troubleshooting efforts on this issue, and first bring their environment up-to-date with various updates of various vendors. If the issue then reoccurs, we will continue where we left off...

Status: Resolved Update 111019: Finally an update on this... KB2584874 will be released in November timeframe (HTP11-11) for this. We've come across a couple of customers who have machines hitting a STOP 0x27 with the following stack: 5: kd>...

Status: Resolved Note: a workaround to provide relief to your users is to disconnect sessions instead of logging them off. Update 111012: GOOD NEWS! The hotfix for this issue has been rolled up in the QFE version of MS11-077 . Install this using...

Status: Resolved In one of our cases, I came across a dump that shows a known problem that is fixed. The root cause here is an issue in the caching logic of mrxsmb20.sys. This is causing data corruption, eventually leading up to a STOP error. The...

All, I'm off for a short break of a week. During this time I will be 99,9% offline, so no posts will be done. Looking forward to let you know new interesting issues when I return on 27th September! \Rob

Status: Resolved Update 110930: The KB article for this will be 2592339. Issue resolved, case closed. ;) Update 110811: Customer confirmed the workaround is working! :) Now we wait for the hotfix... scheduled for HTP11-10. Update 110808: As a...

Hello World, :) Just a short update to let you know I've been completely swamped with casework lately, which made me unable to work on this blog as much as I wanted to. I'll be catching up on this next week, enjoying a week holiday thereafter. As always...

Status: Resolved Final Update 110823: The hotfix will be released in the October timeframe (HTP11-10). Update 110815: We will now proceed with building a private hotfix package. As soon as that gets approved, we will release a public hotfix under...

Status: in Progress... Late last night I had a look at an interesting STOP 0x3B, occurring in rdpdd.dll with the following stack: 00 fffff880`08359490 fffff960`00ac2500 RDPDD!CAutoDrvCheck::CAutoDrvCheck+0x5d 01 fffff880`083594c0 fffff960`00056952...

Status: In Progress... Update 110818: Citrix found that it's likely that a cryptographic service provider (CSP) installed on the machine is not functioning as it should. We have asked the customer to engage the developer of the CSP. Update 110705...

Status: Resolved Update 110815: The KB for this STOP error has gone live. You can find it here . Update 110522: I am still trying to replicate the circumstances that triggered this problem to happen so often at one customer, but not for millions...

Status: Resolved. Update 110809: As part of the HTP11-10 releases, we are releasing KB2585233, which addresses a problem that results in STOP 0xAB errors. Do note that not all of these errors have the same cause. In general, have a look at outdated...

Status: Resolved Just an informational post regarding: Update 110803: Thanks to one of the readers of the blog I found out I should have updated this post some time ago, since the fix that addresses this on Win2008R2 SP1 is now public on http:/...

Please let me know what you think of this blog... Useful (or not)? Did you manage to resolve any issues using the information posted here? What else would you like to see? I'd love to hear from you out there!

Status: Resolved. Update 110713: The customer confirmed that the issue went away after they updated the (very outdated) HBA driver for their Fibre Channel adapter. This again stresses the importance of keeping up-to-date with revisions of various drivers...