Date: Tue, 22 Apr 2008 18:52:35 +0200 From: Roland Smith <rsmith@xs4all.nl> To: =?iso-8859-15?Q?S=E9bastien?= Morand <seb.morand@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Hangup on USB mass device Message-ID: <20080422165235.GA38265@slackbox.xs4all.nl> In-Reply-To: <16d3abd60804220842t5339f965o1d62a15f001a813f@mail.gmail.com> References: <480D94E5.4060506@gmail.com> <20080422153442.GB36675@slackbox.xs4all.nl> <16d3abd60804220842t5339f965o1d62a15f001a813f@mail.gmail.com>
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--qMm9M+Fa2AknHoGS Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Apr 22, 2008 at 03:42:47PM +0000, S=E9bastien Morand wrote: > Hi, >=20 > thanks for the answer, I'm sorry for the little information I send. In the future, please don't reply on top, but on the bottom of the original. =20 > FreeBSD 7.0-STABLE kernel GENERIC on i386. > I don't see anything in the message, but I'm not sure where to look at > for crashdump. The default location is /var/crash. Look for files named vmcore.N, where N is a number. What kind of USB chip do you have on the motherboard? Try 'dmesg | grep ^usb' and post the output. =20 > My computer is either hanging up for ever, I can't move mouse or use > keyboard anymore, juste reset, or hang up a few seconds and reboot by > it self. It could be a hardware problem, or a bug. Does anything appear in the dmesg output when you try to plug in a USB device? look in /var/log/messages, at the correct time. E.g, the following appears when I plug in a USB flash drive; Apr 22 18:24:45 slackbox kernel: umass0: <vendor 0x3538 USB Mass Storage De= vice, class 0/0, rev 2.00/1.00, addr 2> on uhub4 Apr 22 18:24:45 slackbox kernel: da0 at umass-sim0 bus 0 target 0 lun 0 Apr 22 18:24:45 slackbox kernel: da0: <Generic USB Flash Disk 0.00> Removab= le Direct Access SCSI-2 device=20 Apr 22 18:24:45 slackbox kernel: da0: 40.000MB/s transfers Apr 22 18:24:45 slackbox kernel: da0: 250MB (512000 512 byte sectors: 64H 3= 2S/T 250C) Seeing which of these lines appear or not makes it easier to track down the bug. Try to read the crashdump with the kernel debugger, as described in =A710.2 of the FreeBSD Developers' Handbook. Obtain a so-called backtrace. (using the 'bt' command in the debugger). Post your question and the information that you've gathered to the -stable mailing list. There are more people there who are familiar with the kernel internals. Roland --=20 R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) --qMm9M+Fa2AknHoGS Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.8 (FreeBSD) iEYEARECAAYFAkgOF9MACgkQEnfvsMMhpyUbGwCcCSdUJQVXon9SYEORgWpDEU1X KfIAnR34phZF4DzsdSTGFtpKZ1J611LV =1/lG -----END PGP SIGNATURE----- --qMm9M+Fa2AknHoGS--
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