Bug#832175: WARNING fpu/internal.h:532 fpu__restore
Package: linux-image-4.6.0-1-rt-amd64
Version: 4.6.4-1
Hi,
I decided to give linux-image-rt a try and after a while the kernel displayed the following warning message. The kernel is marked as tainted. It is not the result of a previous fault, but the result of this error:
[ 1.250921] scsi_mod: module verification failed: signature and/or required key missing - tainting kernel
(I read in another bug report that this error is expected until module signatures are sorted out in Debian)
Here is the warning message:
[234280.124019] ------------[ cut here ]------------
[234280.124024] WARNING: CPU: 0 PID: 9306 at /build/linux-aOJbQa/linux-4.6.4/debian/build/source_rt/arch/x86/include/asm/fpu/internal.h:532 fpu__restore+0xbd/0x130
[234280.124045] Modules linked in: xt_multiport(E) cpufreq_conservative(E) cpufreq_powersave(E) cpufreq_userspace(E) cpufreq_stats(E) ip6table_filter(E) ip6_tables(E) iptable_filter(E) ip_tables(E) x_tables(E) coretemp(E) kvm_intel(E) kvm(E) iTCO_wdt(E) iTCO_vendor_support(E) ppdev(E) irqbypass(E) evdev(E) dcdbas(E) snd_hda_codec_analog(E) snd_hda_codec_generic(E) pcspkr(E) serio_raw(E) i2c_i801(E) lpc_ich(E) mfd_core(E) sg(E) snd_hda_intel(E) snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm_oss(E) i915(E) snd_mixer_oss(E) snd_pcm(E) snd_timer(E) snd(E) soundcore(E) video(E) drm_kms_helper(E) drm(E) shpchp(E) wmi(E) i2c_algo_bit(E) acpi_cpufreq(E) 8250_fintek(E) parport_pc(E) parport(E) mei_me(E) mei(E) button(E) tpm_tis(E) tpm(E) processor(E) binfmt_misc(E) sunrpc(E) ib_iser(E) rdma_cm(E) iw_cm(E)
[234280.124068] ib_cm(E) ib_sa(E) ib_mad(E) ib_core(E) ib_addr(E) configfs(E) iscsi_tcp(E) libiscsi_tcp(E) libiscsi(E) scsi_transport_iscsi(E) drbd(E) lru_cache(E) loop(E) dm_crypt(E) dm_mod(E) autofs4(E) ext4(E) ecb(E) glue_helper(E) lrw(E) gf128mul(E) ablk_helper(E) cryptd(E) aes_x86_64(E) crc16(E) jbd2(E) mbcache(E) btrfs(E) raid10(E) raid456(E) async_raid6_recov(E) async_memcpy(E) async_pq(E) async_xor(E) async_tx(E) xor(E) raid6_pq(E) libcrc32c(E) crc32c_generic(E) raid1(E) raid0(E) multipath(E) linear(E) md_mod(E) ses(E) enclosure(E) scsi_transport_sas(E) hid_generic(E) usbhid(E) hid(E) uas(E) usb_storage(E) sd_mod(E) psmouse(E) ahci(E) libahci(E) uhci_hcd(E) ehci_pci(E) ehci_hcd(E) ata_generic(E) usbcore(E) usb_common(E) e1000e(E) libata(E) ptp(E) pps_core(E) scsi_mod(E)
[234280.124070] CPU: 0 PID: 9306 Comm: bash Tainted: G E 4.6.0-1-rt-amd64 #1 Debian 4.6.4-1
[234280.124071] Hardware name: Dell Inc. OptiPlex 780 /0C27VV, BIOS A08 01/21/2011
[234280.124073] 0000000000000286 000000008b7a5666 ffffffff81323946 0000000000000000
[234280.124074] 0000000000000000 ffffffff8107e6f7 ffff8800d8b7d180 ffff8800d8b7c600
[234280.124075] ffff8800d8b7d180 ffff8800d8b7d1c0 00000000ffa81a00 0000000000000240
[234280.124075] Call Trace:
[234280.124080] [<ffffffff81323946>] ? dump_stack+0x5c/0x86
[234280.124082] [<ffffffff8107e6f7>] ? __warn+0xd7/0xf0
[234280.124083] [<ffffffff8103abed>] ? fpu__restore+0xbd/0x130
[234280.124085] [<ffffffff8103beb2>] ? __fpu__restore_sig+0x272/0x470
[234280.124087] [<ffffffff81074e8f>] ? ia32_restore_sigcontext+0x14f/0x170
[234280.124088] [<ffffffff810750a6>] ? sys32_sigreturn+0xc6/0xe0
[234280.124091] [<ffffffff81003e82>] ? do_int80_syscall_32+0x52/0xa0
[234280.124092] [<ffffffff815e5266>] ? entry_INT80_compat+0x36/0x50
[234280.124093] ---[ end trace 0000000000000002 ]---
--
Laurent.
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