Date: Thu, 25 Jan 2024 15:34:54 +0800 From: Zhenlei Huang <zlei@FreeBSD.org> To: void <void@f-m.fm> Cc: freebsd-current@freebsd.org Subject: Re: loading vmm.ko crashes main-n267684-e4b646ce1610 Message-ID: <36DAFC0F-EDB2-49D9-94D5-60CBEEB360EC@FreeBSD.org> In-Reply-To: <8db9d82d-37a8-472a-adbf-4565748adac4@app.fastmail.com> References: <8db9d82d-37a8-472a-adbf-4565748adac4@app.fastmail.com>
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--Apple-Mail=_B4A4F3A9-C4DF-46FD-A4B0-F9B310A17810 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On Jan 24, 2024, at 8:47 AM, void <void@f-m.fm> wrote: >=20 > Hello, >=20 > Loading vmm either via vmm_load=3DYES in /boot/loader.conf or > manually via kldload vmm crashes the system to db> prompt > as shown in the link below: >=20 > http://void.f-m.fm.user.fm/Screenshot_20240122_135539.png >=20 > Thing is, access is via a html5 console with no up/down scrolling > or buffer. Nothing can be entered into the db> prompt. There's plenty > more information when it crashes, but the output scrolls off the top. >=20 > The main-n267684 is running a modified GENERIC-NODEBUG > kernel and has debugging turned off in /etc/src.conf=20 > (it has WITHOUT_ASSERT_DEBUG=3D and WITHOUT_DEBUG_FILES=3D and=20 > WITH_MALLOC_PRODUCTION=3D) >=20 > Apart from turning these on again and rebuilding GENERIC, what other = things > need to be set to get a usable coredump when this happens? You may want to configure the dump device before get the coredump. See = https://docs.freebsd.org/en/books/developers-handbook/kerneldebug/#kerneld= ebug-obtain = <https://docs.freebsd.org/en/books/developers-handbook/kerneldebug/#kernel= debug-obtain> . >=20 > /var/crash has nothing in it. >=20 > thanks in advance for any assistance > --=20 >=20 Best regards, Zhenlei --Apple-Mail=_B4A4F3A9-C4DF-46FD-A4B0-F9B310A17810 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; = charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; = -webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><br = class=3D""><div><br class=3D""><blockquote type=3D"cite" class=3D""><div = class=3D"">On Jan 24, 2024, at 8:47 AM, void <<a = href=3D"mailto:void@f-m.fm" class=3D"">void@f-m.fm</a>> = wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><div = class=3D"">Hello,<br class=3D""><br class=3D"">Loading vmm either via = vmm_load=3DYES in /boot/loader.conf or<br class=3D"">manually via = kldload vmm crashes the system to db> prompt<br class=3D"">as shown = in the link below:<br class=3D""><br class=3D""><a = href=3D"http://void.f-m.fm.user.fm/Screenshot_20240122_135539.png" = class=3D"">http://void.f-m.fm.user.fm/Screenshot_20240122_135539.png</a><b= r class=3D""><br class=3D"">Thing is, access is via a html5 console with = no up/down scrolling<br class=3D"">or buffer. Nothing can be entered = into the db> prompt. There's plenty<br class=3D"">more information = when it crashes, but the output scrolls off the top.<br class=3D""><br = class=3D"">The main-n267684 is running a modified GENERIC-NODEBUG<br = class=3D"">kernel and has debugging turned off in /etc/src.conf <br = class=3D"">(it has WITHOUT_ASSERT_DEBUG=3D and WITHOUT_DEBUG_FILES=3D = and <br class=3D"">WITH_MALLOC_PRODUCTION=3D)<br class=3D""><br = class=3D"">Apart from turning these on again and rebuilding GENERIC, = what other things<br class=3D"">need to be set to get a usable coredump = when this happens?<br class=3D""></div></div></blockquote><div><br = class=3D""></div><div>You may want to configure the dump device before = get the coredump.</div><div>See <a = href=3D"https://docs.freebsd.org/en/books/developers-handbook/kerneldebug/= #kerneldebug-obtain" = class=3D"">https://docs.freebsd.org/en/books/developers-handbook/kerneldeb= ug/#kerneldebug-obtain</a> .</div><br class=3D""><blockquote = type=3D"cite" class=3D""><div class=3D""><div class=3D""><br = class=3D"">/var/crash has nothing in it.<br class=3D""><br = class=3D"">thanks in advance for any assistance<br class=3D"">-- <br = class=3D""><br class=3D""></div></div></blockquote></div><br = class=3D""><div class=3D""> <div>Best regards,</div><div>Zhenlei</div> </div> <br class=3D""></body></html>= --Apple-Mail=_B4A4F3A9-C4DF-46FD-A4B0-F9B310A17810--
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