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Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel

From "Rafael J. Wysocki" <rafael@kernel.org>
Newsgroups linux.kernel
Subject Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
Date 2017-01-08 02:50 +0100
Message-ID <sXaMp-8bf-3@gated-at.bofh.it> (permalink)
References (2 earlier) <sX9dD-7kg-3@gated-at.bofh.it> <sX9wZ-7sS-5@gated-at.bofh.it> <sX9GF-7vM-3@gated-at.bofh.it> <sXa01-7Ct-7@gated-at.bofh.it> <sXa9H-7Vs-1@gated-at.bofh.it>
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On Sun, Jan 8, 2017 at 2:01 AM, Borislav Petkov <bp@alien8.de> wrote:
> On Sun, Jan 08, 2017 at 01:52:50AM +0100, Rafael J. Wysocki wrote:
>> So we get the table, but apparently we crash when we attempt to put it.
>
> Right, except on 4.10-rc2 we don't crash but we freeze early. These are
> the last lines:
>
> ...
> [    0.004778] mce: CPU supports 7 MCE banks
> [    0.004861] LVT offset 1 assigned for vector 0xf9
> [    0.004945] Last level iTLB entries: 4KB 512, 2MB 1024, 4MB 512
> [    0.005025] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 512, 1GB 0
> [    0.005165] Freeing SMP alternatives memory: 24K
> [    0.211154] ftrace: allocating 25022 entries in 98 pages
> [    0.219614] smpboot: Max logical packages: 2
> <EOF>
>
>> Let's try to check the obvious just to rule it out (see attached), but
>> honestly I'm not sure what's going on in there.
>
> No change, same freeze.

I was afraid that that would be the case.

Can you try to comment out the acpi_put_table() in
early_amd_iommu_init() and see if that makes any difference?

Thanks,
Rafael

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Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size()  and early_acpi_os_unmap_memory() from Linux kernel "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> - 2017-01-08 00:40 +0100
  Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-08 01:10 +0100
    Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size()  and early_acpi_os_unmap_memory() from Linux kernel "Rafael J. Wysocki" <rafael@kernel.org> - 2017-01-08 01:30 +0100
      Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-08 01:40 +0100
        Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size()  and early_acpi_os_unmap_memory() from Linux kernel "Rafael J. Wysocki" <rafael@kernel.org> - 2017-01-08 02:00 +0100
          Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-08 02:10 +0100
            Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size()  and early_acpi_os_unmap_memory() from Linux kernel "Rafael J. Wysocki" <rafael@kernel.org> - 2017-01-08 02:50 +0100
              Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size()  and early_acpi_os_unmap_memory() from Linux kernel "Rafael J. Wysocki" <rafael@kernel.org> - 2017-01-08 03:30 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-08 14:10 +0100
                RE: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel "Zheng, Lv" <lv.zheng@intel.com> - 2017-01-09 03:00 +0100
                RE: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel "Zheng, Lv" <lv.zheng@intel.com> - 2017-01-09 03:40 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-09 10:40 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-01-09 23:20 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size()  and early_acpi_os_unmap_memory() from Linux kernel "Rafael J. Wysocki" <rafael@kernel.org> - 2017-01-09 23:30 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-01-10 00:20 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-10 00:20 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-01-10 00:40 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-10 00:50 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-10 01:00 +0100
                RE: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel "Zheng, Lv" <lv.zheng@intel.com> - 2017-01-10 01:50 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size()  and early_acpi_os_unmap_memory() from Linux kernel "Rafael J. Wysocki" <rafael@kernel.org> - 2017-01-10 02:30 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-01-10 03:30 +0100
                RE: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel "Zheng, Lv" <lv.zheng@intel.com> - 2017-01-10 06:50 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-01-10 07:00 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-11 10:30 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-01-11 11:00 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-11 11:10 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-01-11 11:30 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-10 10:50 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size()  and early_acpi_os_unmap_memory() from Linux kernel "Rafael J. Wysocki" <rafael@kernel.org> - 2017-01-11 04:50 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-11 10:50 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-01-10 01:00 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size()  and early_acpi_os_unmap_memory() from Linux kernel "Rafael J. Wysocki" <rafael@kernel.org> - 2017-01-10 00:50 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-01-10 01:30 +0100
                RE: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel "Zheng, Lv" <lv.zheng@intel.com> - 2017-01-09 06:30 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Jörg Rödel <joro@8bytes.org> - 2017-01-09 12:00 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-01-09 23:50 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Borislav Petkov <bp@alien8.de> - 2017-01-10 00:00 +0100
                Re: 174cc7187e6f ACPICA: Tables: Back port  acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux  kernel Jörg Rödel <joro@8bytes.org> - 2017-01-10 15:00 +0100

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