Date: Sun, 8 Jan 2017 16:22:33 +0300 From: "Andrey V. Elsukov" <bu7cher@yandex.ru> To: Navdeep Parhar <nparhar@gmail.com>, Mike Tancsa <mike@sentex.net> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>, Gleb Smirnoff <glebius@freebsd.org> Subject: Re: coredump when loading cxgb after boot with routing daemon already running (RELENG11) Message-ID: <5cefdc60-2131-1eab-32fe-74212c93cc59@yandex.ru> In-Reply-To: <CAPFoGT_24WC6UNyoiCmDOJqzMGJ=rn=CiMczFi=%2BQBA8-uBcaw@mail.gmail.com> References: <b2aa73a9-63b5-36c6-f8fa-a5a17f9f3073@sentex.net> <CAPFoGT_24WC6UNyoiCmDOJqzMGJ=rn=CiMczFi=%2BQBA8-uBcaw@mail.gmail.com>
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On 04.01.2017 22:07, Navdeep Parhar wrote: > What source line in releng-11 does ifioctl+0x6dd correspond to? > > (kgdb) l *(ifioctl+0x6dd) > > This might be race where the ifnet is being created or coming up and > zebra pokes it in some way before it's fully ready. If that's the > case it could affect any ifnet. Hi, from a quick look, it seems that ifnet becomes available for any actions just after if_alloc() and any strange things can happen in a window after if_alloc() and before if_attach(). Am I right? -- WBR, Andrey V. Elsukov
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