Date: Fri, 8 Jun 2018 01:44:31 -0700 From: Eitan Adler <lists@eitanadler.com> To: Mateusz Guzik <mjg@freebsd.org> Cc: src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r334830 - in head/sys: kern net vm Message-ID: <CAF6rxgnKHYkrJ9pCnb47Z5-S9LX1%2Bb28pG=bu9qq3%2BtipaURhg@mail.gmail.com> In-Reply-To: <CAF6rxgntfeH_E3yETxerCOD3yfxYSHZMSTr%2B4qC7FtuDJZme3Q@mail.gmail.com> References: <201806080540.w585ebLL027537@repo.freebsd.org> <CAF6rxgntfeH_E3yETxerCOD3yfxYSHZMSTr%2B4qC7FtuDJZme3Q@mail.gmail.com>
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On 8 June 2018 at 01:31, Eitan Adler <lists@eitanadler.com> wrote:
> On 7 June 2018 at 22:40, Mateusz Guzik <mjg@freebsd.org> wrote:
>> Modified: head/sys/vm/uma_core.c
>> ==============================================================================
>> --- head/sys/vm/uma_core.c Fri Jun 8 05:17:06 2018 (r334829)
>> +++ head/sys/vm/uma_core.c Fri Jun 8 05:40:36 2018 (r334830)
>> @@ -2257,7 +2257,8 @@ uma_zalloc_arg(uma_zone_t zone, void *udata, int flags
>> KASSERT(curthread->td_critnest == 0 || SCHEDULER_STOPPED(),
>> ("uma_zalloc_arg: called with spinlock or critical section held"));
>> if (zone->uz_flags & UMA_ZONE_PCPU)
>> - MPASS((flags & M_ZERO) == 0);
>> + KASSERT((flags & M_ZERO) == 0, ("allocating from a pcpu zone "
>> + "with M_ZERO passed"));
>
> After this I get a panic (inverted order)
>
> Panic: flags & MZERO @ uma_core.c line 2260
>
> fast_syscall_common
> amd64_syscall
> sys_ioctl
> kern_ioctl
> if_up
> in6_attach
> in6_update_ifa
> rtinit
> rtrequest1_fib
> uma_zalloc_arg
> zone_import
> zone_fetch_slab
> keg_fetch_slab
> keb_alloc_slab
> rtentry_zinit
> counter_u64_alloc
> uma_zalloc_arg
> ...
ofc, kgdb has an internal error trying to open the core.
--
Eitan Adler
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