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Date: Fri, 03 Oct 2008 18:08:34 +0200 From: Christoph <cr2005@...lub.de> To: linux-kernel@...r.kernel.org Subject: Re: TIOCGWINSZ retuns old pty size after receiving SIGWINCH Hello list! This is a follow up of http://linux.derkeiler.com/Mailing-Lists/Kernel/2008-08/msg08509.html Summary: resizing a terminal emulator window results in a lot of misaligned text on the screen. SIGWINCH signal defective. It ends with this question and I'd like to contribute some confusion: > > 2.6.25.9: good > > 2.6.26-rc1 bad ( +/- 10% of the resizes) > > 2.6.26.2: still bad ( +/- 10% of the resizes ) > > 2.6.27-rc3: ugly bad ( > 75% of the resizes ) > > linux-next good > Any other versions to test ? I got this bug after kernel upgrade from 2.6.25.25 to 2.6.26.5 on my ppc notebook. That made me wonder. On my x86 desktop I don't had that bug. I tested: ppc, notebook 2.6.25.25 ok 2.6.26.5 bug 2.6.26.4 bug x86, desktop 2.6.26.1 ok 2.6.26.2 ok 2.6.26.3 ok 2.6.26.4 ok ! So I diffed the config of .4 and there is an eye catcher: ppc: CONFIG_PREEMPT (=> CONFIG_LOCK_KERNEL) x86: CONFIG_PREEMPT_VOLUNTARY So, recompiled and tested: 2.6.26.4, x86, CONFIG_PREEMPT => bug 2.6.26.5, ppc, CONFIG_PREEMPT_VOLUNTARY => ok Hope, this information helps you hunting the bug. greets chr -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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