http://bugs.winehq.com/show_bug.cgi?id=1553
Summary: Overlapped I/O fails on sockets Product: Wine Version: CVS Platform: PC URL: http://www.tglsoft.de/misc/hamster_en.htm OS/Version: Linux Status: NEW Keywords: regression, download Severity: normal Priority: P2 Component: wine-files AssignedTo: wine-bugs@winehq.com ReportedBy: prupe@myrealbox.com
Patch #8594 http://www.winehq. com/hypermail/wine-cvs/2003/06/0232.html causes problems with Hamster v2.0.0.1 (downloadable from http://www.tglsoft. de/misc/hamster_en.htm), a local mail and news server.
When Hamster connects to a remote server and tries to read data, it immediately loses the connection with an error. After some debugging on my own, it seems that WS_select is noticing data available for reading on the socket, but then ReadFile returns 0 bytes and STATUS_SUCCESS.
Reversing patch #8594 fixes the problem. Other networking apps seem to work fine, so I suspect the problem is specific to overlapped I/O on sockets.
A section of +file,+winsock logging before the patch
trace:winsock:__ws_select read 0x42592318, write (nil), excp (nil) timeout 0x42592310 trace:winsock:fd_set_export trace:file:ReadFile 0x70 0x41817388 1024 0x4259240c 0x425923f8 trace:file:FILE_ReadFileEx file 0x70 to buf 0x41817388 num 1024 0x425923f8 func (nil) trace:file:GetOverlappedResult (0x70 0x425923f8 0x4259240c 0) trace:file:GetOverlappedResult waiting on 0x425923f8 trace:file:FILE_AsyncReadService 0x425923f8 0x41817388 trace:file:FILE_AsyncReadService read 59 more bytes 59/1024 so far trace:file:GetOverlappedResult wait on 0x425923f8 returned 192 trace:file:GetOverlappedResult waiting on 0x425923f8 trace:file:GetOverlappedResult wait on 0x425923f8 returned 0 trace:file:GetOverlappedResult (0x70 0x425923f8 0x4259240c 0)
After the patch, there's just
trace:winsock:__ws_select read 0x42592318, write (nil), excp (nil) timeout 0x42592310 trace:winsock:fd_set_export trace:file:ReadFile 0x80 0x41817324 1024 0x4259240c 0x425923f8 trace:file:GetOverlappedResult (0x80 0x425923f8 0x4259240c 0)