Date: Thu, 20 Apr 2017 21:50:40 +0200 From: Marko Zec <zec@fer.hr> To: <peter.blok@bsd4all.org> Cc: Kristof Provost <kristof@sigsegv.be>, <freebsd-net@freebsd.org> Subject: Re: MFC VIMAGE fixes to 11-stable Message-ID: <20170420215040.4ee94610@x23> In-Reply-To: <20170420214128.29379fdb@x23> References: <8E6FC1CD-24D5-46D5-A6A1-760DD612F92D@bsd4all.org> <20170420124256.1190665d@x23> <60C3FBF7-7CF3-49AF-9DDF-0589AE9D9146@sigsegv.be> <20170420152853.019e5480@x23> <ACA8734E-88DF-4E7F-BB54-00D393ED7EA6@sigsegv.be> <C662C1B6-BCB7-4B92-9512-9E5B085B0AF8@bsd4all.org> <20170420214128.29379fdb@x23>
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On Thu, 20 Apr 2017 21:41:28 +0200 Marko Zec <zec@fer.hr> wrote: > [This sender failed our fraud detection checks and may not be who > they appear to be. Learn about spoofing at > http://aka.ms/LearnAboutSpoofing] >=20 > On Thu, 20 Apr 2017 21:24:33 +0200 > <peter.blok@bsd4all.org> wrote: >=20 > > It doesn=E2=80=99t solve my problem, but below is the stack back trace = that > > leads to the problem that allocation doen for the default vnet are > > given back as part of the vnet destroy. > > > > #0 0xffffffff807ff275 at pfr_destroy_kentry+0x35 > > #1 0xffffffff807fe47c at pfr_remove_kentries+0x1fc > > #2 0xffffffff808053cd at pfr_setflags_ktable+0xcd > > #3 0xffffffff80802108 at pfr_clr_tables+0x248 > > #4 0xffffffff807ecd75 at vnet_pf_uninit+0x4a5 > > #5 0xffffffff806a9d2c at vnet_destroy+0x13c > > #6 0xffffffff8056cdcf at prison_deref+0x2af > > #7 0xffffffff805ee287 at taskqueue_run_locked+0x127 > > #8 0xffffffff805ef428 at taskqueue_thread_loop+0xc8 > > #9 0xffffffff80565505 at fork_exit+0x85 > > #10 0xffffffff808d245e at fork_trampoline+0xe =20 >=20 > Having absolutely no clue what the PF code does or is supposed to do, > I'd bet that V_irtualizing pfr_ktablehead, and probably pfr_nulltable > and pfr_ktable_cnt as well, would help here. pf_main_anchor looks suspicious, too, as it is never dereferenced via the VNET() accessor, so effectively it is still used as a single global variable. Marko
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