Date: Tue, 23 Jul 2013 19:13:23 +0300 From: Alexander Motin <mav@FreeBSD.org> To: Hans Petter Selasky <hps@bitfrost.no> Cc: freebsd-current@freebsd.org, Jia-Shiun Li <jiashiun@gmail.com> Subject: Re: Panic at USB drive plugging in Message-ID: <51EEABA3.7060909@FreeBSD.org> In-Reply-To: <51EEAA36.6030206@bitfrost.no> References: <CAHNYxxNwhAJChd0=DErbBguqjoPFgfYDFjv-CRzi1WNDdUvExw@mail.gmail.com> <51EEAA36.6030206@bitfrost.no>
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On 23.07.2013 19:07, Hans Petter Selasky wrote: > On 07/23/13 17:12, Jia-Shiun Li wrote: >> Hi all, >> >> as personal preference I compiled kernel with drivers as module as >> possible. Recently I found that plugging in USB drives causes kernel >> to panic. But it does not happen when booting with GENERIC kernel >> which has USB drivers compiled in. >> >> panic screenshot: >> http://goo.gl/pIIDaF >> >> back trace: >> http://goo.gl/ww4yy6 >> >> the kernel is compiled: >> FreeBSD 4cbsd 10.0-CURRENT FreeBSD 10.0-CURRENT #1 r253395: Fri Jul 19 >> 15:20:08 CST 2013 jsli@4cbsd:/usr/obj/usr/src/sys/Minimal amd64 >> >> the back trace looks like devd and something had timing issues. Any >> ideas? >> > This looks like a CAM/SCSI problem and not directly USB stack problem. It seems crashed inside the CAM sg driver, that is not part of GENERIC kernel. Are you using it is some way? -- Alexander Motin
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