Date: Sun, 24 Nov 2019 11:39:09 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 241710] please increase ARG_MAX Message-ID: <bug-241710-227-OtYvzEWIiz@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-241710-227@https.bugs.freebsd.org/bugzilla/> References: <bug-241710-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D241710 --- Comment #23 from Konstantin Belousov <kib@FreeBSD.org> --- (In reply to Thierry Thomas from comment #22) Strings are copied to the KVA allocated from submap which is sized at boot.= If the size of individual allocation can be changed at runtime it could result both in over-provisioning of the submap and in fragmentation. Both of the problems might cause execve(2) hang waiting for free KVA to proceed. We might allow a tunable to size the maxargs and correspondingly size subma= p at boot. But this still makes the changes to the kernel map, which are now on user. I just doubt that user can do any reasonable choice there, it requir= es understanding too much of the kernel layout even to guess what is safe. --=20 You are receiving this mail because: You are the assignee for the bug.=
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