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=195882 --- 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 more quickly than they can be written back and freed, in which case the system will continually be starved for free pages. Currently I don't believe we have any mechanism to restrict the amount of dirty memory mapped into a given process. 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). -- You are receiving this mail because: You are the assignee for the bug.help
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