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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