Hello. On Win2k SP4, I have several memory leaks in portcls.sys when verified with driver verifier (it seems to be mny fault, see below). I have a portcls based audio and MIDI drivers which reside above a 1394 "bus driver". I have both wave and MIDI drivers, but it seems related to wave as it also occurs when I disable the MIDI drivers. I'm pretty sure it's my fault, as I have tested with other audio products and I have not seen this. Althought I am not 100% sure, it seems that I *don't* need to stream audio for these leaks to happen. Any thoughts on what this may be related to? For example, it seems that KsoO is allocated in portcls!xDispatchCreate. Yet what control over this do I have? I do NOT override any PnP IRPs of portcls. Any ideas? Thanks in advance. Here is a dump from "!verifier 3 portcls.sys": Driver Verification List portcls.sys (820daf88) NonPagedPool=234, PagedPool=b10: loaded Paged Pool Usage Peak : 0x00000069 allocations 0x00003db8 bytes Paged Pool Usage Current : 0x00000015 allocations 0x00000b10 bytes NonPaged Pool Usage Peak : 0x000000b0 allocations 0x0000948c bytes NonPaged Pool Usage Current: 0x0000000c allocations 0x00000234 bytes PoolAddress SizeInBytes Tag CallersAddress A5FC3F88 0x00000074 PcCr F769908B A5FC7DE8 0x00000218 PcFp F7697DE9 A5FDFF60 0x000000a0 PcSi F76981AA A5FDBFC0 0x0000003c PcSt F7697F02 A5FF3FE8 0x00000014 PcSt F7697F02 A5FDDFF8 0x00000004 PcSb F7697F19 A5FF7F60 0x000000a0 PcSi F76981AA A5FF5FF8 0x00000004 PcSb F7697F19 A602BF88 0x00000074 PcCr F769908B A602FDE8 0x00000218 PcFp F7697DE9 A6047F60 0x000000a0 PcSi F76981AA A6043FC0 0x0000003c PcSt F7697F02 A605BFE8 0x00000014 PcSt F7697F02 A6045FF8 0x00000004 PcSb F7697F19 A605FF60 0x000000a0 PcSi F76981AA A605DFF8 0x00000004 PcSb F7697F19 A6087F88 0x00000074 PcCr F769908B A608BDE8 0x00000218 PcFp F7697DE9 A60A3F60 0x000000a0 PcSi F76981AA A609FFC0 0x0000003c PcSt F7697F02 A60B7FE8 0x00000014 PcSt F7697F02 A60A1FF8 0x00000004 PcSb F7697F19 A60BBF60 0x000000a0 PcSi F76981AA A60B9FF8 0x00000004 PcSb F7697F19 AD0F1FF0 0x0000000c KsoO F7699D73 AD0F3FD0 0x00000030 PcCr F7697014 AD0F5FF0 0x0000000c PcIc F76970BB AD38BFF0 0x0000000c KsoO F7699D73 AD38DFD0 0x00000030 PcCr F7697014 AD38FFF0 0x0000000c PcIc F76970BB AD625FF0 0x0000000c KsoO F7699D73 AD627FD0 0x00000030 PcCr F7697014 AD629FF0 0x0000000c PcIc F76970BB ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.de/