Date: Mon, 22 Nov 2004 23:36:21 +0100 From: Jeremie Le Hen <jeremie@le-hen.org> To: Jeff Roberson <jroberson@chesapeake.net> Cc: Ivan Voras <ivoras@fer.hr> Subject: Re: Giantless VFS. Message-ID: <20041122223621.GG960@obiwan.tataz.chchile.org> In-Reply-To: <20041122064318.Y18094@mail.chesapeake.net> References: <20041120000743.G18094@mail.chesapeake.net> <41A1C3BD.4010903@fer.hr> <20041122064318.Y18094@mail.chesapeake.net>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi Jeff, > I haven't received any feedback from the list though. I hope people are > testing it. Perhaps the silence indicates universal success? :-) I have just tested your patch. It compiles like a charm. FYI, my kernel have MUTEX_DEBUG, INVARIANTS and WITNESS enabled, but no PREEMPTION. While using my system with debug.mpsavevfs=1, I encountered two different panics. (Sorry, I do not have a serial cable plugged into my laptop and manual writing of hexadecimal addresses is very annoying.) The first one seems to be related to union mounts as when I use Tobias Roth's profile.sh (which union mounts a vnode md(4) device over /etc) `ls /etc' panics the system but when I don't have the mount, everything seems to work : panic: mutex Giant not owned at ../../../kern/vfs_vnops.c:962 db> trace kdb_enter() panic() _mtx_assert() vn_write_suspend_wait() ufs_inactive() ufs_vnoperate() vput() getdirentries() syscall() The second one appeared just when I ask bash(1) to complete a command name : it has to scan all directories from $HOME and stat(2) every files in them. Here is the panic() : Memory modified after free 0xc1ddc300 (252) val=c1df59c4 @ 0xc1ddc374 panic: Most recently used by UFS mount kdb_enter() panic() mtrash_ctor() uma_zalloc_arg() malloc() fdinit() fdcopy() fork1() fork() syscall() I hope this will help. Best regads, -- Jeremie Le Hen jeremie@le-hen.org
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20041122223621.GG960>