Date: Thu, 15 Apr 2010 12:51:52 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Daniel Braniss <danny@cs.huji.ac.il> Cc: freebsd-stable@freebsd.org Subject: Re: panic: vm_fault_copy_wired: page missing Message-ID: <20100415095152.GC2415@deviant.kiev.zoral.com.ua> In-Reply-To: <E1O2LXV-000HOu-Nf@kabab.cs.huji.ac.il> References: <E1O2JP2-000FbF-No@kabab.cs.huji.ac.il> <20100415082254.GA2415@deviant.kiev.zoral.com.ua> <E1O2LXV-000HOu-Nf@kabab.cs.huji.ac.il>
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--U3Zg06C/E2vtHpAW Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Apr 15, 2010 at 12:39:13PM +0300, Daniel Braniss wrote: > >=20 > > --xFkczX7rH1pKA3aV > > Content-Type: text/plain; charset=3Dus-ascii > > Content-Disposition: inline > > Content-Transfer-Encoding: quoted-printable > >=20 > > On Thu, Apr 15, 2010 at 10:22:20AM +0300, Daniel Braniss wrote: > > > Hi, > > > I'm getting this with FreeBSD-8-stable, it usually happens when > > > starting apache: > > >=3D20 > > > panic: vm_fault_copy_wired: page missing > > > cpuid =3D3D 3 > > > KDB: enter: panic > > > [thread pid 1013 tid 100106 ] > > > Stopped at kdb_enter+0x3d: movq $0,0x68f170(%rip) > > > db> tr > > > Tracing pid 1013 tid 100106 td 0xffffff0007a66ae0 > > > kdb_enter() at kdb_enter+0x3d > > > panic() at panic+0x17b > > > vm_fault_copy_entry() at vm_fault_copy_entry+0x283 > > > vmspace_fork() at vmspace_fork+0x4d0 > > > fork1() at fork1+0x35f > > > fork() at fork+0x1c > > > syscall() at syscall+0x1e7 > > > Xfast_syscall() at Xfast_syscall+0xe1 > > > --- syscall (2, FreeBSD ELF64, fork), rip =3D3D 0x8009f41ac, rsp =3D3= D 0x7fff=3D > > ffffe7d8,=3D20 > > > rbp =3D3D 0x800c34a80 --- > > >=3D20 > > > any help in tracking this? > > >=3D20 > > > thanks, > > > danny > >=20 > > Is it true that the process started, or at least some of loaded dso > > are from NFS mount ? > everything is nfs :-), the host is dataless > but redusing the amount of physical memory has solved the > problem, so I don't think NFS is the problem. I do think that NFS is problem. Another key point is that your process is mlock'ed, right ? This is kind of known issue with NFS and mlock. --U3Zg06C/E2vtHpAW Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (FreeBSD) iEYEARECAAYFAkvG4bgACgkQC3+MBN1Mb4gn2QCdHlf6scFQfpgHFw7a/iySjrnP SZoAn1WKC/3wxo2QIY8E8NEkludLi0aN =vs7j -----END PGP SIGNATURE----- --U3Zg06C/E2vtHpAW--
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