Date: Fri, 18 Feb 2011 14:21:36 +0200 From: Kostik Belousov <kostikbel@gmail.com> To: "Dr. Baud" <drbaud@yahoo.com> Cc: freebsd-hackers@freebsd.org Subject: Re: spontaneous reboot - ptrace Message-ID: <20110218122136.GA78089@deviant.kiev.zoral.com.ua> In-Reply-To: <137445.33642.qm@web120719.mail.ne1.yahoo.com> References: <137445.33642.qm@web120719.mail.ne1.yahoo.com>
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--Bu1yJv+wdE57ohW6 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Feb 18, 2011 at 03:58:05AM -0800, Dr. Baud wrote: >=20 >=20 > > First, do you have a console output during the run ? Is it possible > > that machine paniced ? If not, were there any kernel messages before> > > reboot ? > > > > Second, what is the process you are dumping ? Can you show at least > > the procstat -v <pid> output for the process ? >=20 > Sorry for this late response but my earlier response appears to have = been=20 > consumed by the email reflector. >=20 > I'm getting an NMI. And the trouble appears to be when trying to > read via ptrace memory segments of type KVME_TYPE_DEVICE. The app in > quesion allocates a large number of large memory buffers and maps them > into virtual address space. Not all segments cause the NMI however. > Small sampling of the virtual memory map. You did not provided exact console output on the panic, despite requested. What is the device that was mmaped ? Obviously, this is your problem. Can you gather all required information ? >=20 > PID START END PRT RES PRES REF SHD FL TP P= ATH > 931 0x400000 0x1773000 r-x 4239 5053 2 1 CN vn /= mnt/dia > g/problemchild > 931 0x1872000 0x2ef2000 rw- 416 0 1 0 C- vn /= mnt/dia > g/problemchld > 931 0x2ef2000 0x6700000 rw- 11765 0 1 0 C- df > 931 0x801872000 0x8018a2000 r-x 48 0 57 28 CN vn /= libexec > /ld-elf.so.1 > 931 0x8018a2000 0x8018b3000 rw- 15 0 1 0 C- df > 931 0x8018b3000 0x801924000 rw- 113 0 1698 0 -- dv > 931 0x801924000 0x801925000 rw- 1 0 1698 0 -- dv > 931 0x801925000 0x801926000 rw- 1 0 1698 0 -- dv > 931 0x801926000 0x801927000 rw- 1 0 1698 0 -- dv > 931 0x801927000 0x801928000 rw- 1 0 1698 0 -- dv > 931 0x801928000 0x80192a000 rw- 2 0 1698 0 -- dv > 931 0x80192a000 0x80192b000 rw- 1 0 1698 0 -- dv > 931 0x80192b000 0x80192c000 rw- 1 0 1698 0 -- dv > 931 0x80192c000 0x80192d000 rw- 1 0 1698 0 -- dv > 931 0x80192d000 0x80192e000 rw- 1 0 1698 0 -- dv > 931 0x80192e000 0x801930000 rw- 2 0 1698 0 -- dv > 931 0x801930000 0x801932000 rw- 2 0 1698 0 -- dv > 931 0x801932000 0x801993000 rw- 97 0 1698 0 -- dv > 931 0x801993000 0x8019a0000 rw- 13 0 1698 0 -- dv > 931 0x8019a0000 0x8019a1000 rw- 1 0 1698 0 -- dv >=20 > .... >=20 > 931 0x802ab7000 0x802bb7000 --- 0 0 1 0 CN df > 931 0x0x802bb70 0x0x802bd6000 rw- 17 0 1 0 C- vn /= lib/lib > c.so.7 > 931 0x802bd6000 0x802bf1000 rw- 18 0 1 0 C- df > 931 0x802bf1000 0x802bfd000 r-x 9 14 2 1 CN vn /= lib/lib > gcc_s.so.1 > 931 0x802bfd000 0x802cfc000 --- 0 0 1 0 CN df > 931 0x802cfc000 0x802cfe000 rw- 2 0 1 0 CN vn /= lib/lib > gcc_s.so.1 > 931 0x802cfe000 0x802cff000 rw- 1 0 1698 0 -- dv > 931 0x802cff000 0x802d00000 rw- 1 0 1698 0 -- dv > 931 0x802d00000 0x802e00000 rw- 132 0 1 0 C- df > 931 0x802e00000 0x802f00000 rw- 109 0 1 0 C- df > 931 0x802f00000 0x802f91000 rw- 145 0 1698 0 -- dv > 931 0x802f91000 0x802fb2000 rw- 33 0 1698 0 -- dv > 931 0x802fb2000 0x802fd3000 rw- 33 0 1698 0 -- dv > 931 0x802fd3000 0x802ff5000 rw- 34 0 1698 0 -- dv > 931 0x802ff5000 0x802ff6000 rw- 1 0 1698 0 -- dv >=20 >=20 > =20 > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" --Bu1yJv+wdE57ohW6 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEARECAAYFAk1eZE8ACgkQC3+MBN1Mb4hwWgCg2r32Aks0g5+3+3jrIPHQ8fya THoAoPNcBa+auCGVDGCIxSNFsVjsO7aE =MiZg -----END PGP SIGNATURE----- --Bu1yJv+wdE57ohW6--
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