Date: Fri, 12 Jul 2013 06:40:16 -0700 (PDT) From: "Chris H" <bsd-lists@1command.com> To: "freebsd-stable" <freebsd-stable@freebsd.org>, "freebsd-amd64" <freebsd-amd64@freebsd.org> Subject: Re: What are the ideal ranges for kern.ipc.shm*? Message-ID: <7a0e92dcb2921d9b6bf29476baf09e47.authenticated@ultimatedns.net> In-Reply-To: <CAJp7RHZzpyNKvhrWeEQ7kemwn%2BszYQnAvAEAjNKtKcfbRhsr3Q@mail.gmail.com> References: <4640843f1a35075d295f99aa9e8ed951.authenticated@ultimatedns.net> <CAJp7RHZzpyNKvhrWeEQ7kemwn%2BszYQnAvAEAjNKtKcfbRhsr3Q@mail.gmail.com>
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Greetings Alberto, and thank you for the reply. > On Fri, Jul 12, 2013 at 5:24 AM, Chris H <bsd-lists@1command.com> wrote: >> Greetings, >> Over the years using the xfce4 desktop, I would occasionally receive >> SHM ERROR messages. As they never interfered (so's I could notice), I >> always put off attempting to track the cause down. However, now having >> performed a fairly major upgrade (~1yr since last), The error appears >> to greatly affect KDE4 (used to use kde3) applications I run within >> xfce4. The windows don't re-draw correctly, and I receive additional >> errors,as well: >> ... >> Resource id: 0x0 >> X Error: BadDrawable (invalid Pixmap or Window parameter) 9 >> Major opcode: 62 (X_CopyArea) >> Resource id: 0x0 >> ... >> After much searching, it would appear to be related to the >> kern.ipc.shm* values. > > $ cat /usr/ports/x11-toolkits/qt4-gui/pkg-message > > Qt paint engine makes common use of shared memory. To avoid MIT-SHM > errors (i.e., blank windows), you probably need to raise shared memory > limits in loader.conf(5). The following should be safe values for the > KDE Plasma Desktop: > > kern.ipc.shmall=32768 > kern.ipc.shmmni=1024 > kern.ipc.shmseg=1024 Yes, I followed those instructions when I received the message after the upgrade from qt3 --> qt4. Entering those numbers in loader.conf(5) caused the server to freeze and re-boot ~20 seconds after starting X. --chris > -- > Alberto Villa, FreeBSD committer <avilla@FreeBSD.org> > http://people.FreeBSD.org/~avilla > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" >
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