Date: Tue, 7 Aug 2001 12:55:20 -0700 (PDT) From: Julian Elischer <julian@elischer.org> To: "Semen A. Ustimenko" <semenu@FreeBSD.org> Cc: freebsd-hackers@FreeBSD.org Subject: Re: Kernel stack size Message-ID: <Pine.BSF.4.21.0108071254040.70956-100000@InterJet.elischer.org> In-Reply-To: <Pine.BSF.4.21.0108080000170.4841-100000@default>
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the kernel stack is a VERY LIMITED resource basically you have about 4 or 5 Kbytes per process. if you overflow it you write over your signal information.. you should MALLOC space and use a pointer to it.. On Wed, 8 Aug 2001, Semen A. Ustimenko wrote: > Hi! > > I'm developing some code running in kernel that use a lot of stack. And it > seems i run into stack overflow. This results in some proc structure > related parts overwrite (particulary p->p_stats->p_timer[ITIMER_PROF]) and > unexpected signals. (Otherwise, it usually page faults inside > swi_net_next()) > > Could somebody explain how this can happen (i thought i would panic and > say ``stack oveflow'') and how this can be avoided? > > Thanks in forward! > > Bye! > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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