Date: Wed, 13 Dec 2017 03:09:46 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: John Baldwin <jhb@FreeBSD.org>, Konstantin Belousov <kostikbel@gmail.com>, Conrad Meyer <cem@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r326758 - in head/sys/i386: conf include Message-ID: <5A30378A.3040609@grosbein.net> In-Reply-To: <4a9c76c9-8063-9420-b198-14487b089840@FreeBSD.org> References: <201712110432.vBB4WbnE021090@repo.freebsd.org> <20171211091943.GF2272@kib.kiev.ua> <5A2E5D44.9030904@grosbein.net> <4a9c76c9-8063-9420-b198-14487b089840@FreeBSD.org>
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On 13.12.2017 02:32, John Baldwin wrote: > Certainly for MIPS I have found that compiling with clang > instead of gcc for mips64 gives a kernel that panics for stack overflow for any > use of NFS. It might be that this is due to something MIPS-specific, but it > might be worthwhile retesting with kstack_pages=2 and building the kernel > with CROSS_TOOLCHAIN=i386-gcc after installing the appropriate package. You may want to check NFS code that uses stack heavily. Here are numbers for i386 (bytes-on-stack, module, what function): 1344 nfs_nfsdport.o <nfssvc_nfsd>: 1152 nfs_nfsdserv.o <nfsrvd_lockt>: 1128 nfs_nfsdserv.o <nfsrvd_lock>: 952 nfs_nfsdserv.o <nfsrvd_rename>: 664 nfs_nfsdserv.o <nfsrvd_open>: 640 nfs_nfsdserv.o <nfsrvd_link>: 624 nfs_nfsdserv.o <nfsrvd_create>: 608 nfs_nfsdserv.o <nfsrvd_mknod>: 600 nfs_clvfsops.o <nfs_mount>:
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