Date: Mon, 08 Feb 2021 22:45:55 +0000 From: bugzilla-noreply@freebsd.org To: emulation@FreeBSD.org Subject: [Bug 253335] emulators/qemu-user-static php segfault building devel/pear for armv7 Message-ID: <bug-253335-4077-LeQLR1TKVF@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-253335-4077@https.bugs.freebsd.org/bugzilla/> References: <bug-253335-4077@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253335 Mark Johnston <markj@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Open Assignee|kevans@freebsd.org |markj@FreeBSD.org --- Comment #7 from Mark Johnston <markj@FreeBSD.org> --- We're crashing on a write to 0xf4215a70. Shortly before, we had mmapped a region containing that address: 71585 mmap(0,65536,7,4098,-1,0) =3D 0xf4206000 71585 mprotect(0xf4206000,0x10000,7) =3D 0 and I can't see any subsequent system calls that would modify that mapping,= but procstat -v shows: 71585 0xf4206000 0xf4215000 rwx 1 2 2 0 ----- df 71585 0xf4215000 0xf4216000 r-x 1 2 2 0 ----- df so indeed the last page is not writeable. I'm not sure why libpcre is mprotect()ing a region to set the permissions specified by the preceding mm= ap() call. --=20 You are receiving this mail because: You are on the CC list for the bug.=
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