@snafus @esindril - So, the common criteria are: 1. When it "overwrites", it does this starting on 1MB. That is, it's likely not a race condition that develops in the middle of the file. 2. When it overwrites, it does this consistently on every buffer write. It's more of an on/off switch (potentially in the initialization?) than something that comes and goes. 3. There's no clear trigger or reproducer to get into this condition. So it could be a race at the beginning or something like use of uninitialized data. -- You are receiving this because you commented. Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1404#issuecomment-784246456 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1