Re: cygwin/xfree86 logged into KDE3 causes strange cygwin error
On Fri, Apr 05, 2002 at 08:22:26PM -0500, Harold Hunt wrote: Oh yeah, by sketchy I meant that after it happens a few times and I switch the focus away from Cygwin/XFree86 two things happen: 1) Cygwin/XFree86 freezes solid. 2) The Windows mouse cursor disappears and the Windows mouse doesn't work until I reboot. The mouse doesn't even start to work again when you press Ctrl+Alt+Del and get the Windows Security box that usually works perfectly even when programs have crashed. Yeah... that's pretty sketchy. It sounds like typical memory overwrite problems. I have never seen that error show up in any other application. I thought I had actually turned off assertions in the released version of cygwin. Guess I was mistaken. There are only two popular users of vfork that I'm aware of: sh and make. It's possible that their needs are simple enough that they're not triggering a cygwin bug that kde is triggering. It's also possible that kde is just doing a plain old fashioned overwriting of memory. It should be fairly simple to figure out what's stomping on the memory but it will have to (obviously?) be done by someone who has kde and feels up to debugging the cygwin DLL. Just watching what happens to cygheap-fdtab.fds_on_hold during a vfork should pinpoint it pretty quickly. cgf
Cygwin/XFree86 logged into KDE3 causes strange Cygwin error
This is the first time I have every seen anything like this in Cygwin/XFree86. I just installed KDE3 on my Linux box and when I login via XDMCP and run Konsole I get this error message in Windows: --- Error --- Failed assertion fds_on_hold != NULL at line 643 of file /cygnus/netrel/src/cygwin-1.3.10-1/winsup/cygwin/dtable.cc --- OK --- So far this has happened only when I launch Konsole. Cygwin/XFree86 doesn't crash when this happens, but things seem to get sketchy after it happens a few times. Any ideas? Harold -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
RE: Cygwin/XFree86 logged into KDE3 causes strange Cygwin error
Oh yeah, by sketchy I meant that after it happens a few times and I switch the focus away from Cygwin/XFree86 two things happen: 1) Cygwin/XFree86 freezes solid. 2) The Windows mouse cursor disappears and the Windows mouse doesn't work until I reboot. The mouse doesn't even start to work again when you press Ctrl+Alt+Del and get the Windows Security box that usually works perfectly even when programs have crashed. Yeah... that's pretty sketchy. Harold -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Harold Hunt Sent: Friday, April 05, 2002 8:15 PM To: cygx Cc: cygwin Subject: Cygwin/XFree86 logged into KDE3 causes strange Cygwin error This is the first time I have every seen anything like this in Cygwin/XFree86. I just installed KDE3 on my Linux box and when I login via XDMCP and run Konsole I get this error message in Windows: --- Error --- Failed assertion fds_on_hold != NULL at line 643 of file /cygnus/netrel/src/cygwin-1.3.10-1/winsup/cygwin/dtable.cc --- OK --- So far this has happened only when I launch Konsole. Cygwin/XFree86 doesn't crash when this happens, but things seem to get sketchy after it happens a few times. Any ideas? Harold -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: cygwin/xfree86 logged into KDE3 causes strange cygwin error
On Fri, Apr 05, 2002 at 08:14:44PM -0500, Harold Hunt wrote: This is the first time I have every seen anything like this in Cygwin/XFree86. I just installed KDE3 on my Linux box and when I login via XDMCP and run Konsole I get this error message in Windows: --- Error --- Failed assertion fds_on_hold != NULL at line 643 of file /cygnus/netrel/src/cygwin-1.3.10-1/winsup/cygwin/dtable.cc --- OK --- So far this has happened only when I launch Konsole. Cygwin/XFree86 doesn't crash when this happens, but things seem to get sketchy after it happens a few times. Any ideas? It's coming from vfork. Something's stomping on memory that is supposed to hold a copy of the fd table. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: cygwin/xfree86 logged into KDE3 causes strange cygwin error
On Fri, Apr 05, 2002 at 08:22:26PM -0500, Harold Hunt wrote: Oh yeah, by sketchy I meant that after it happens a few times and I switch the focus away from Cygwin/XFree86 two things happen: 1) Cygwin/XFree86 freezes solid. 2) The Windows mouse cursor disappears and the Windows mouse doesn't work until I reboot. The mouse doesn't even start to work again when you press Ctrl+Alt+Del and get the Windows Security box that usually works perfectly even when programs have crashed. Yeah... that's pretty sketchy. It sounds like typical memory overwrite problems. I have never seen that error show up in any other application. I thought I had actually turned off assertions in the released version of cygwin. Guess I was mistaken. There are only two popular users of vfork that I'm aware of: sh and make. It's possible that their needs are simple enough that they're not triggering a cygwin bug that kde is triggering. It's also possible that kde is just doing a plain old fashioned overwriting of memory. It should be fairly simple to figure out what's stomping on the memory but it will have to (obviously?) be done by someone who has kde and feels up to debugging the cygwin DLL. Just watching what happens to cygheap-fdtab.fds_on_hold during a vfork should pinpoint it pretty quickly. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
