Bug#843764: WARNING: fpu__restore
Hello,
I have warnings like this in my kernel log, too. In my case it happens
only once per boot, it seems. And it started happening with
linux-image-4.8.0-2-rt-amd64-unsigned, I have not seen these warnings
with previos linux-image-4.8.0-1-rt-amd64-unsigned.
------------[ cut here ]------------
WARNING: CPU: 3 PID: 15128 at
/build/linux-GTttUS/linux-4.8.15/debian/build/source_rt/arch/x86/include/asm/fpu/internal.h:368
fpu__restore+0x2dd/0x2f0
Modules linked in: drbg(E) ansi_cprng(E) authenc(E) echainiv(E)
xfrm6_mode_tunnel(E) xfrm4_mode_tunnel(E) hmac(E) xfrm_user(E)
xfrm4_tunnel(E) tunnel4(E) ipcomp(E) xfrm_ipcomp(E) esp4(E) fuse(E)
ah4(E) af_key(E) xfrm_algo(E) ip6table_filter(E) ip6table_nat(E)
nf_conntrack_ipv6(E) nf_defrag_ipv6(E) nf_nat_ipv6(E) ip6_tables(E)
xt_tcpudp(E) xt_conntrack(E) iptable_filter(E) iptable_nat(E)
nf_conntrack_ipv4(E) nf_defrag_ipv4(E) nf_nat_ipv4(E) nf_nat(E)
binfmt_misc(E) eeepc_wmi(E) asus_wmi(E) sparse_keymap(E) mxm_wmi(E)
intel_rapl(E) intel_powerclamp(E) snd_hda_codec_hdmi(E) coretemp(E)
snd_hda_codec_realtek(E) snd_hda_codec_generic(E) kvm_intel(E) kvm(E)
irqbypass(E) crct10dif_pclmul(E) crc32_pclmul(E) ghash_clmulni_intel(E)
snd_hda_intel(E) serio_raw(E) snd_hda_codec(E) pcspkr(E) snd_hda_core(E)
snd_hwdep(E) iTCO_wdt(E) snd_pcm(E) joydev(E) iTCO_vendor_support(E)
snd_timer(E) snd(E) soundcore(E) sg(E) hci_uart(E) btbcm(E) btqca(E)
battery(E) btintel(E) bluetooth(E) rfkill(E) intel_lpss_acpi(E)
intel_lpss(E) mfd_core(E) evdev(E) acpi_als(E) mei_me(E) tpm_tis(E)
kfifo_buf(E) tpm_tis_core(E) acpi_pad(E) mei(E) wmi(E) shpchp(E)
industrialio(E) tpm(E) nf_conntrack(E) msr(E) zram(E) zsmalloc(E)
ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc16(E) jbd2(E) fscrypto(E)
mbcache(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)
multipath(E) linear(E) raid1(E) raid0(E) md_mod(E) sd_mod(E)
hid_generic(E) usbhid(E) xhci_pci(E) ahci(E) libahci(E) sata_sil24(E)
crc32c_intel(E) i915(E) i2c_algo_bit(E) xhci_hcd(E)
aesni_intel(E) aes_x86_64(E) glue_helper(E) lrw(E) gf128mul(E)
ablk_helper(E) e1000e(E) cryptd(E) libata(E) drm_kms_helper(E) ptp(E)
i2c_i801(E) psmouse(E) usbcore(E) pps_core(E) i2c_smbus(E) scsi_mod(E)
drm(E) usb_common(E) fan(E) thermal(E) i2c_hid(E) video(E) hid(E)
button(E) fjes(E)
CPU: 3 PID: 15128 Comm: build Tainted: G E 4.8.0-2-rt-amd64
#1 Debian 4.8.15-1
Hardware name: System manufacturer System Product Name/Z170-A, BIOS 2202
09/19/2016
0000000000000286 000000004bed8b93 ffffffffa6f3d077 0000000000000000
0000000000000000 ffffffffa6c81b47 ffff92ddda4e8c40 0000000000000000
ffff92ddda4e8000 ffff92ddda4e8c40 ffff92ddda4e8c80 0000000000000440
Call Trace:
[<ffffffffa6f3d077>] ? dump_stack+0x5c/0x85
[<ffffffffa6c81b47>] ? __warn+0xd7/0xf0
[<ffffffffa6c3b2fd>] ? fpu__restore+0x2dd/0x2f0
[<ffffffffa6c3cce0>] ? __fpu__restore_sig+0x280/0x690
[<ffffffffa6c77946>] ? ia32_restore_sigcontext+0x146/0x170
[<ffffffffa6c77c2f>] ? sys32_rt_sigreturn+0xaf/0xd0
[<ffffffffa6c03d42>] ? do_int80_syscall_32+0x52/0xa0
[<ffffffffa7213373>] ? entry_INT80_compat+0x33/0x40
---[ end trace 0000000000000002 ]---
--
Zlatko
Reply to: