Re: Acroread segfault
Lo, on Thursday, May 23, Michael Jinks did write: On Wed, May 22, 2002 at 06:21:27PM -0500, Richard Cobbe wrote: I can't tell from the parts of your X log that you included, but what color depth are you running on these machines? In my experience, Acroread really doesn't like 24bit color at all; it's much happer in either 16bit or 32bit. Oho! 24-bit it is, which BTW also plays nasty for Netscape. Exactly my experience. Once I switched to 16- or 32-bit color, both apps started behaving nicely again. (That said, netscape under 24-bit color works fine, it just looks kinda funny.) I gather that this is a general trend: 24-bit color modes were added kinda late in the game, so not all applications handle them very nicely. IMO, a well-designed and well-implemented app should work regardless of the color depth (except perhaps for a minimum), but I've never done X development, so what do I know? (Yeah they still want to use that too. :( ) So we were going to have to try other color depths for these machines anyway, if it doesn't work I'll post a link to an strace. I can't speak for other folks on the list, but I know so little about acroread, Netscape, or X that an strace won't do me much good. My suspicion is that the problem stems from an interaction between acroread and the X server. Since these aren't system calls, I don't think these will necessarily show up on an strace dump, or at least not in a meaningful fashion. (Depending on the situation, they may involve several system calls, as for networking, but I don't think those will help you much.) Richard -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Acroread segfault
On Wed, May 22, 2002 at 06:21:27PM -0500, Richard Cobbe wrote: I can't tell from the parts of your X log that you included, but what color depth are you running on these machines? In my experience, Acroread really doesn't like 24bit color at all; it's much happer in either 16bit or 32bit. Oho! 24-bit it is, which BTW also plays nasty for Netscape. (Yeah they still want to use that too. :( ) So we were going to have to try other color depths for these machines anyway, if it doesn't work I'll post a link to an strace. Thanks, -mrj -- # Michael Jinks, IB # JFI/MRSEC/EFI Computing # University of Chicago # Reader! Think not that technical information ought not be called speech; -- Anonymous, How to decrypt a DVD -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Acroread segfault
Hi, all. I'm mostly looking for tips on where to seek more info, since at this point I'm completely puzzled and lack the background to really dig into this issue. I've just set up the first of a batch of new Dell Optiplex GX240's, running Woody. These are going to be desktops for researchers, so reading PDF files is extremely important. Unfortunately, Acroread segfaults when it tries to display to the screen. It works fine when the display is exported elsewhere or to a VNC session; but it segfaults when I run the program on my own desktop and export the display to the new Dell. From all of that I surmise that the problem arises from an interaction between Acroread and the X driver which is actually painting the display on these machines. For what its worth, Acroread will run if it's started without loading any document, but the segfault happens as soon as we try to open and display anything. That would make me suspect the font server, but as I said it runs fine in a VNC session. So far, Acroread is the only program we've found which exhibits this behavior. I'd try to get support from Adobe but I expect they'll just point the finger at XFree86. In case it helps, I'm appending some output from the XFree86 log at the bottom of this message. The video card is an ATI built into the system's motherboard, I don't know much about the chipset and the log output doesn't tell me much either; if it will help, I can probably find out more from Dell. I can also send along the output of 'strace acroread file' if that would be useful. I'm aware of xpdf and I've recommended it as a workaround for now, but I expect my users to need the feature set of Acroread itself sooner or later. Thanks for any tips. -mrj Remainder of posting is small excerpt from XFree log. (==) Log file: /var/log/XFree86.0.log, Time: Mon May 20 08:43:30 2002 (==) Using config file: /etc/X11/XF86Config-4 snip (==) ServerLayout Default Layout (**) |--Screen Default Screen (0) (**) | |--Monitor Generic Monitor (**) | |--Device Generic Video Card (**) |--Input Device Generic Keyboard (**) Option XkbRules xfree86 (**) XKB: rules: xfree86 (**) Option XkbModel pc104 (**) XKB: model: pc104 (**) Option XkbLayout us (**) XKB: layout: us (==) Keyboard: CustomKeycode disabled (**) |--Input Device Configured Mouse (**) |--Input Device Generic Mouse (WW) The directory /usr/lib/X11/fonts/cyrillic does not exist. Entry deleted from font path. (**) FontPath set to unix/:7100,/usr/lib/X11/fonts/misc,/usr/lib/X11/fonts/100dpi/:unscaled,/usr/lib/X11/fonts/75dpi/:unscaled,/usr/lib/X11/fonts/Type1,/usr/lib/X11/fonts/Speedo,/usr/lib/X11/fonts/100dpi,/usr/lib/X11/fonts/75dpi (==) RgbPath set to /usr/X11R6/lib/X11/rgb (==) ModulePath set to /usr/X11R6/lib/modules (++) using VT number 7 snip (WW) Cannot open APM (II) Module ABI versions: XFree86 ANSI C Emulation: 0.1 XFree86 Video Driver: 0.4 XFree86 XInput driver : 0.2 XFree86 Server Extension : 0.1 XFree86 Font Renderer : 0.2 (II) Loader running on linux (II) LoadModule: bitmap (II) Loading /usr/X11R6/lib/modules/fonts/libbitmap.a (II) Module bitmap: vendor=The XFree86 Project compiled for 4.1.0.1, module version = 1.0.0 Module class: XFree86 Font Renderer ABI class: XFree86 Font Renderer, version 0.2 (II) Loading font Bitmap (II) LoadModule: pcidata (II) Loading /usr/X11R6/lib/modules/libpcidata.a (II) Module pcidata: vendor=The XFree86 Project compiled for 4.1.0.1, module version = 0.1.0 ABI class: XFree86 Video Driver, version 0.4 (II) PCI: Probing config type using method 1 (II) PCI: Config type is 1 (II) PCI: stages = 0x03, oldVal1 = 0x, mode1Res1 = 0x8000 (II) PCI: PCI scan (all values are in hex) snip (II) PCI: End of PCI scan (II) LoadModule: scanpci (II) Loading /usr/X11R6/lib/modules/libscanpci.a (II) Module scanpci: vendor=The XFree86 Project compiled for 4.1.0.1, module version = 0.1.0 ABI class: XFree86 Video Driver, version 0.4 (II) UnloadModule: scanpci (II) Unloading /usr/X11R6/lib/modules/libscanpci.a snip [remainder of file elided to save bandwidth, available if anyone thinks it will be useful] -- # Michael Jinks, IB # JFI/MRSEC/EFI Computing # University of Chicago # Reader! Think not that technical information ought not be called speech; -- Anonymous, How to decrypt a DVD -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Acroread segfault
In case it helps, I'm appending some output from the XFree86 log at the bottom of this message. The video card is an ATI built into the system's motherboard, I don't know much about the chipset and the log output doesn't tell me much either; if it will help, I can probably find out more from Dell. I can also send along the output of 'strace acroread file' if that would be useful. I'm aware of xpdf and I've recommended it as a workaround for now, but I expect my users to need the feature set of Acroread itself sooner or later. I see nothing in the X log that is suspicious. If you run acroread from a terminal does it print any useful errors/messages? You could also try running it under strace, that may help pinpoint the problem. Of course this would be a whole lot simpler if the app's source was available, but we won't make this into a free/non-free debate. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Acroread segfault
Lo, on Wednesday, May 22, Michael Jinks did write: Hi, all. I'm mostly looking for tips on where to seek more info, since at this point I'm completely puzzled and lack the background to really dig into this issue. I've just set up the first of a batch of new Dell Optiplex GX240's, running Woody. These are going to be desktops for researchers, so reading PDF files is extremely important. Unfortunately, Acroread segfaults when it tries to display to the screen. It works fine when the display is exported elsewhere or to a VNC session; but it segfaults when I run the program on my own desktop and export the display to the new Dell. From all of that I surmise that the problem arises from an interaction between Acroread and the X driver which is actually painting the display on these machines. I can't tell from the parts of your X log that you included, but what color depth are you running on these machines? In my experience, Acroread really doesn't like 24bit color at all; it's much happer in either 16bit or 32bit. Richard -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
