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Groups > linux.kernel > #1354998

Got FPU related warning on Intel Quark during boot

From Andy Shevchenko <andy.shevchenko@gmail.com>
Newsgroups linux.kernel
Subject Got FPU related warning on Intel Quark during boot
Date 2016-03-10 11:50 +0100
Message-ID <rb6kh-5OL-9@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Today tried first time after long break to boot Intel Quark SoC with
most recent linux-next. Got the following warning:

[   14.714533] WARNING: CPU: 0 PID: 823 at
arch/x86/include/asm/fpu/internal.h:163 fpu__clear+0x8c/0x160
[   14.726603] Modules linked in:
[   14.729910] CPU: 0 PID: 823 Comm: kworker/u2:0 Not tainted
4.5.0-rc7-next-20160310+ #137
[   14.738307]  00000000 00000000 ce691e20 c12b6fc9 ce691e50 c1049fd1
c1978c6c 00000000
[   14.747000]  00000337 c196b530 000000a3 c102050c 000000a3 ce587ac0
00000000 ce653000
[   14.755722]  ce691e64 c104a095 00000009 00000000 00000000 ce691e74
c102050c ce587500
[   14.764468] Call Trace:
[   14.767172]  [<c12b6fc9>] dump_stack+0x16/0x1d
[   14.771889]  [<c1049fd1>] __warn+0xd1/0xf0
[   14.776253]  [<c102050c>] ? fpu__clear+0x8c/0x160
[   14.781234]  [<c104a095>] warn_slowpath_null+0x25/0x30
[   14.786648]  [<c102050c>] fpu__clear+0x8c/0x160
[   14.791447]  [<c101f347>] flush_thread+0x57/0x60
[   14.796341]  [<c113a5cc>] flush_old_exec+0x4cc/0x600
[   14.801594]  [<c117ab20>] load_elf_binary+0x2b0/0x1060
[   14.807010]  [<c1111220>] ? get_user_pages_remote+0x50/0x60
[   14.812898]  [<c12c4687>] ? _copy_from_user+0x37/0x40
[   14.818236]  [<c1139f82>] search_binary_handler+0x62/0x150
[   14.824007]  [<c113b19c>] do_execveat_common+0x45c/0x600
[   14.829647]  [<c113b35f>] do_execve+0x1f/0x30
[   14.834289]  [<c1059941>] call_usermodehelper_exec_async+0x91/0xe0
[   14.840765]  [<c17f2310>] ret_from_kernel_thread+0x20/0x40
[   14.846540]  [<c10598b0>] ? umh_complete+0x40/0x40
[   14.851626] ---[ end trace 137ff5893f9b85bf ]---

Is it know issue? Or what could I try to fix it?

Reproducibility:  3 of 3.

-- 
With Best Regards,
Andy Shevchenko

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Thread

Got FPU related warning on Intel Quark during boot Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-03-10 11:50 +0100
  Re: Got FPU related warning on Intel Quark during boot Ingo Molnar <mingo@kernel.org> - 2016-03-10 12:20 +0100
    Re: Got FPU related warning on Intel Quark during boot Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-03-10 13:50 +0100
      Re: Got FPU related warning on Intel Quark during boot Borislav Petkov <bp@alien8.de> - 2016-03-10 14:00 +0100
        Re: Got FPU related warning on Intel Quark during boot Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-03-10 14:40 +0100
          Re: Got FPU related warning on Intel Quark during boot Borislav Petkov <bp@alien8.de> - 2016-03-10 16:10 +0100
            Re: Got FPU related warning on Intel Quark during boot Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-03-10 16:30 +0100
              Re: Got FPU related warning on Intel Quark during boot Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2016-03-10 16:50 +0100
                Re: Got FPU related warning on Intel Quark during boot Borislav Petkov <bp@alien8.de> - 2016-03-10 17:50 +0100
                Re: Got FPU related warning on Intel Quark during boot Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2016-03-10 18:20 +0100
                Re: Got FPU related warning on Intel Quark during boot Borislav Petkov <bp@alien8.de> - 2016-03-10 20:10 +0100
                Re: Got FPU related warning on Intel Quark during boot Andy Lutomirski <luto@amacapital.net> - 2016-03-11 02:40 +0100
                Re: Got FPU related warning on Intel Quark during boot Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2016-03-11 12:00 +0100
            Re: Got FPU related warning on Intel Quark during boot Andy Lutomirski <luto@amacapital.net> - 2016-03-11 02:50 +0100
              Re: Got FPU related warning on Intel Quark during boot Ingo Molnar <mingo@kernel.org> - 2016-03-11 10:10 +0100
                Re: Got FPU related warning on Intel Quark during boot Borislav Petkov <bp@alien8.de> - 2016-03-11 10:50 +0100
                Re: Got FPU related warning on Intel Quark during boot Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2016-03-11 12:10 +0100
                Re: Got FPU related warning on Intel Quark during boot Borislav Petkov <bp@alien8.de> - 2016-03-11 12:30 +0100
                [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Borislav Petkov <bp@alien8.de> - 2016-03-11 12:40 +0100
                Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Linus Torvalds <torvalds@linux-foundation.org> - 2016-03-11 19:40 +0100
                Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Dave Hansen <dave.hansen@linux.intel.com> - 2016-03-11 23:10 +0100
                Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Borislav Petkov <bp@alien8.de> - 2016-03-11 23:30 +0100
                Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Andy Lutomirski <luto@amacapital.net> - 2016-03-12 18:30 +0100
                Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Borislav Petkov <bp@alien8.de> - 2016-03-12 18:50 +0100
                Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Borislav Petkov <bp@alien8.de> - 2016-03-11 23:10 +0100
                Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2016-03-12 13:10 +0100
                Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Borislav Petkov <bp@alien8.de> - 2016-03-12 13:30 +0100
                Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Ingo Molnar <mingo@kernel.org> - 2016-03-12 16:20 +0100
                Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Ingo Molnar <mingo@kernel.org> - 2016-03-12 16:10 +0100
                Re: [PATCH] x86/FPU: Fix FPU handling on legacy FPU machines Ingo Molnar <mingo@kernel.org> - 2016-03-12 16:20 +0100
                [tip:x86/urgent] x86/fpu: Fix eager-FPU handling on legacy FPU  machines tip-bot for Borislav Petkov <tipbot@zytor.com> - 2016-03-12 16:20 +0100

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