Date: Sun, 25 Aug 2019 10:27:48 -0600 From: Rebecca Cran <rebecca@bsdio.com> To: Konstantin Belousov <kostikbel@gmail.com>, markj@freebsd.org Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: Panic on boot with r351461 (AMD ThreadRipper 2990WX) Message-ID: <21865c12-9cb4-6560-1075-7cea5f83b30a@bsdio.com> In-Reply-To: <20190825143034.GO71821@kib.kiev.ua> References: <6e5687b2-ab3f-a570-37ab-72c8a9776167@bsdio.com> <20190824203305.GF71821@kib.kiev.ua> <d7200dbc-62b3-fd86-ca61-32d559987338@bsdio.com> <20190824230801.GK71821@kib.kiev.ua> <f15ba651-28ef-d9db-3646-ab8cb49b3d18@bsdio.com> <20190825062407.GL71821@kib.kiev.ua> <9e94aea8-7d63-0f9e-2f1e-c1492e9dc455@bsdio.com> <20190825143034.GO71821@kib.kiev.ua>
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On 2019-08-25 08:30, Konstantin Belousov wrote: > > So what happens, IMO, is that for memory-less domains ds_cnt is zero > because ds_mask is zero, which causes the exception on divide. You > can try the following combined patch, but I really dislike the fact > that I cannot safely use DOMAINSET_FIXED (if my diagnosis is correct). With that patch applied, boot gets a lot further but eventually panics after probing pcm devices: panic: vm_domainset_iter_first: Unknown policy 0 cpuid = 49 time = 1 KDB: stack backtrace: ... vm_domainset_iter_first() vm_domainset_iter_page_init() vm_page_grab_pages() vm_thread_stack_create() kstack_import() uma_zalloc_arg() vm_thread_new() thread_alloc() kthread_add() vm_pageout() fork_exit() fork_trampoline() -- Rebecca Cran
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