Date: Tue, 06 Nov 2018 02:22:26 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 195882] Local DoS from unprivileged user Message-ID: <bug-195882-227-c75LnGw7QG@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-195882-227@https.bugs.freebsd.org/bugzilla/> References: <bug-195882-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D195882 --- Comment #7 from Mark Johnston <markj@FreeBSD.org> --- (In reply to rozhuk.im from comment #6) Your test program is dirtying pages by writing to them, so the OS is forced= to flush them to disk before they can be reused. It is easy to dirty pages mo= re quickly than they can be written back and freed, in which case the system w= ill continually be starved for free pages. Currently I don't believe we have a= ny mechanism to restrict the amount of dirty memory mapped into a given proces= s. Regarding kernel dumps, if you have space on a raw partition, you can simply point dumpon(8) at that. If not, you might consider using netdump(4). --=20 You are receiving this mail because: You are the assignee for the bug.=
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