Date: Tue, 22 Oct 2019 17:31:27 +0200 From: Hans Petter Selasky <hps@selasky.org> To: Gleb Smirnoff <glebius@freebsd.org>, Li-Wen Hsu <lwhsu@freebsd.org>, br@freebsd.org Cc: src-committers <src-committers@freebsd.org>, svn-src-all <svn-src-all@freebsd.org>, svn-src-head <svn-src-head@freebsd.org> Subject: Re: svn commit: r353876 - head/sys/kern Message-ID: <55116590-d3ca-00ea-29c6-f32adfcdea9e@selasky.org> In-Reply-To: <20191022152913.GJ4086@FreeBSD.org> References: <201910212312.x9LNCEbX052414@repo.freebsd.org> <CAKBkRUzTs%2BSpUr0AFoj%2Bmt2im_0TDDc5bq-E0N5SwAV%2BV7BpEQ@mail.gmail.com> <20191022152913.GJ4086@FreeBSD.org>
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On 2019-10-22 17:29, Gleb Smirnoff wrote: > L> > L> panic: Assertion (vm_offset_t)et >= td->td_kstack && (vm_offset_t)et + > L> sizeof(struct epoch_tracker) < td->td_kstack + td->td_kstack_pages * > L> PAGE_SIZE failed at /workspace/src/sys/kern/subr_epoch.c:373 Probably doesn't matter that much, but the last comparison should be less than or equal, instead of only less than, off-by-one, if the element is on top of stack ??? sizeof(struct epoch_tracker) XXX <= XXX td->td_kstack + td->td_kstack_pages --HPS
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