Date: Fri, 16 Dec 2016 12:07:57 +0000 From: Matthew Seaman <matthew@FreeBSD.org> To: freebsd-questions@freebsd.org Subject: Re: HW defect or system failure Message-ID: <7e56c2b4-f809-94b5-19f1-c521062a6488@FreeBSD.org> In-Reply-To: <20161216105453.7nxo2qrxfnwgrs2n@bsd.de> References: <20161216105453.7nxo2qrxfnwgrs2n@bsd.de>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --LSQhnPTqta3jtC2AvBbGdSAAU5fx76pSj Content-Type: multipart/mixed; boundary="1X4OSdVNNa6NgT9SLj22kR4JRP4iew1bp"; protected-headers="v1" From: Matthew Seaman <matthew@FreeBSD.org> To: freebsd-questions@freebsd.org Message-ID: <7e56c2b4-f809-94b5-19f1-c521062a6488@FreeBSD.org> Subject: Re: HW defect or system failure References: <20161216105453.7nxo2qrxfnwgrs2n@bsd.de> In-Reply-To: <20161216105453.7nxo2qrxfnwgrs2n@bsd.de> --1X4OSdVNNa6NgT9SLj22kR4JRP4iew1bp Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 16/12/2016 10:54, J wrote: > i got this weird problem of my notebook randomly rebooting. > How would i find out if it is a kernel panic or a hardware failure? What changed? If the rebooting started spontaneously, and not in a way obviously related to your upgrading the OS or packages, then it is probably hardware. Have you tried cleaning out and de-fluffing any air intakes or fans? A common cause of rebooting like this is due to overheating. Making sure the cooling airflow is unobstructed helps a lot. You can try running diagnostic tools like memtest86 -- these will detect many problems with RAM or CPU caches, which would confirm hardware as the cause. If memtest86 doesn't find anything, that doesn't mean your hardware is definitely OK -- there are ways that hardware can fail that memtest86 can't detect. Cheers, Matthew --1X4OSdVNNa6NgT9SLj22kR4JRP4iew1bp-- --LSQhnPTqta3jtC2AvBbGdSAAU5fx76pSj Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQJ8BAEBCgBmBQJYU9kjXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQ2NTNBNjhCOTEzQTRFNkNGM0UxRTEzMjZC QjIzQUY1MThFMUE0MDEzAAoJELsjr1GOGkATyq4P/3ZczKwWO5dN67jhDh5aAtxN pc+R+HJ50InbERSID0B7Go2b+27mSIGkJPBO/gmAPjMB5PJmqacChHpM7dBm4nRh uYSAxp7dZtp5qFb22gEp0sgLD4SDCUwrtaPVIEqcbO9FdPP3lyVeyt6iIfBuNMXJ DkD0TFu5cblBfPxGitXOgAiE39FtfaCjAPL3tLqq5iqP7+4kXPOK9XZ7so91YtB2 3j/c5q7o9Ad/jDinBwebX7A9EDIot0NaQo5PgodW9o3Cc5O+V+5N/9o+JDCM0Sva yg4YlOC0JoDA2hM0h0/GnorXm9bGZk6BGz834qB9vEagt8rMyGB0BOfpF1DdgPkX DXKkLlYfHCZjCm/xPj1DMauIbfR3ePkh6vNzUZ41nToEJNF1a+NhMe2xNExMqKtA 2LGDZTT9XO67BUdoVFFH2xEZeZS5VtdO1/i2576sJUen78DndI70sk+TWY3VwDaV qbAiOnGmL2uY08CYcYCfpVG21brNUsizidzy1rnljR1yzOzj2iTMUWUZN2gmRuat 6I83d9lAJuxM4gDWwbCK4Jce5TWtALuxahNUWfHXbSgZNOKkaZB3Yef6KbfiyP2Z GOWhQb8rzsLK67nYs45/7XyDdPk7qUWTqVZmkVglaBFp2zmIVfXTUn+GOcyleBHX 9BNajCy/q+p2pKwqsgr1 =RQ65 -----END PGP SIGNATURE----- --LSQhnPTqta3jtC2AvBbGdSAAU5fx76pSj--
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