On 2017-08-07 15:19, Sebastian Andrzej Siewior wrote: > One thing you could try, is to see if the latest v4.11 based RT kernel > works more reliable. I tried 4.11.12-rt9 (with your patch applied, just in case). It worked find for a day and then failed like the older kernels: Aug 13 21:26:34 lolek kernel: EDEADLK #2 Aug 13 21:26:34 lolek kernel: Crashing soon on -35 (ffff8f3f8674df40 ffff8f3f76a11fc0) Aug 13 21:26:34 lolek kernel: ------------[ cut here ]------------ Aug 13 21:26:34 lolek kernel: kernel BUG at kernel/locking/rtmutex.c:1077! Aug 13 21:26:34 lolek kernel: invalid opcode: 0000 [#1] PREEMPT SMP Aug 13 21:26:34 lolek kernel: Modules linked in: snd_seq_dummy snd_seq cts nfsv4 dns_resolver nfs lockd grace fscache fuse ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter xt_tcpudp ipt_REJECT nf_reject_ipv4 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_raw iptable_security ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter msr bnep joydev acer_wmi sparse_keymap coretemp hwmon intel_rapl intel_powerclamp intel_cstate intel_uncore intel_rapl_perf efi_pstore psmouse pcspkr snd_soc_skl uvcvideo efivars snd_soc_skl_ipc snd_hda_codec_hdmi videobuf2_vmalloc snd_soc_sst_ipc videobuf2_memops Aug 13 21:26:34 lolek kernel: snd_soc_sst_dsp videobuf2_v4l2 snd_hda_ext_core snd_hda_codec_realtek videobuf2_core snd_soc_sst_match snd_hda_codec_generic videodev input_leds snd_soc_core btusb btrtl media btbcm snd_compress btintel ac97_bus snd_pcm_dmaengine snd_usb_audio bluetooth snd_usbmidi_lib snd_hda_intel snd_rawmidi snd_hda_codec snd_seq_device snd_hda_core snd_hwdep r8169 snd_pcm mii mei_me mei shpchp dell_smo8800 thermal wmi pinctrl_sunrisepoint pinctrl_intel intel_lpss_acpi idma64 battery tpm_crb evdev intel_lpss_pci acpi_pad ac intel_lpss intel_pch_thermal sch_fq_codel ip_tables x_tables ext4 crc16 jbd2 fscrypto mbcache dm_crypt algif_skcipher af_alg hid_generic usbhid sr_mod cdrom sd_mod rtsx_pci_sdmmc i915 mmc_core crct10dif_pclmul crc32_pclmul intel_gtt ghash_clmulni_intel ahci i2c_algo_bit libahci Aug 13 21:26:34 lolek kernel: drm_kms_helper libata aesni_intel syscopyarea sysfillrect aes_x86_64 sysimgblt crypto_simd xhci_pci fb_sys_fops cryptd scsi_mod glue_helper xhci_hcd drm serio_raw rtsx_pci i2c_hid usbcore hid i2c_core video button dm_mirror dm_region_hash dm_log rpcsec_gss_krb5 auth_rpcgss sunrpc snd_hrtimer snd_timer snd soundcore dm_cache_smq dm_cache dm_persistent_data libcrc32c crc32c_generic crc32c_intel dm_bufio dm_bio_prison dm_mod efivarfs autofs4 Aug 13 21:26:34 lolek kernel: CPU: 3 PID: 1312 Comm: zabbix_agentd Not tainted 4.11.12-rt9-1 #2 Aug 13 21:26:34 lolek kernel: Hardware name: Acer Aspire E5-575/Ironman_SK , BIOS V1.25 03/03/2017 Aug 13 21:26:34 lolek kernel: task: ffff8f3f76a11fc0 task.stack: ffff90d7022dc000 Aug 13 21:26:34 lolek kernel: RIP: 0010:rt_spin_lock_slowlock_locked+0x2cf/0x300 Aug 13 21:26:34 lolek kernel: RSP: 0018:ffff90d7022dfbe8 EFLAGS: 00010082 Aug 13 21:26:34 lolek kernel: RAX: 0000000000000038 RBX: ffff8f3f76a11fc0 RCX: 0000000000000000 Aug 13 21:26:34 lolek kernel: RDX: 0000000000000000 RSI: 0000000000000038 RDI: 0000000000000001 Aug 13 21:26:34 lolek kernel: RBP: ffff90d7022dfc28 R08: 0000000000000000 R09: 0000000000000038 Aug 13 21:26:34 lolek kernel: R10: 0000000000000008 R11: 000000000001ac04 R12: ffff8f3f76a11fc0 Aug 13 21:26:34 lolek kernel: R13: ffff90d7022dfc38 R14: 0000000000000246 R15: ffff8f3f9158ce18 Aug 13 21:26:34 lolek kernel: FS: 00007f4858271780(0000) GS:ffff8f3f91580000(0000) knlGS:0000000000000000 Aug 13 21:26:34 lolek kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 13 21:26:34 lolek kernel: CR2: 00007f4856eedf38 CR3: 0000000236a1a000 CR4: 00000000003406e0 Aug 13 21:26:34 lolek kernel: Call Trace: Aug 13 21:26:34 lolek kernel: rt_spin_lock_slowlock+0x67/0xa0 Aug 13 21:26:34 lolek kernel: rt_spin_lock+0x1a/0x20 Aug 13 21:26:34 lolek kernel: do_current_softirqs+0x116/0x390 Aug 13 21:26:34 lolek kernel: __local_bh_enable+0x5b/0x80 Aug 13 21:26:34 lolek kernel: tcp_v4_send_reset+0x412/0x590 Aug 13 21:26:34 lolek kernel: ? tcp_rcv_state_process+0x28a/0xda0 Aug 13 21:26:34 lolek kernel: ? preempt_count_sub+0xa1/0x100 Aug 13 21:26:34 lolek kernel: tcp_v4_do_rcv+0x73/0x200 Aug 13 21:26:34 lolek kernel: ? tcp_v4_do_rcv+0x73/0x200 Aug 13 21:26:34 lolek kernel: __release_sock+0x6b/0x110 Aug 13 21:26:34 lolek kernel: release_sock+0x35/0xa0 Aug 13 21:26:34 lolek kernel: inet_shutdown+0x86/0x100 Aug 13 21:26:34 lolek kernel: SyS_shutdown+0x84/0x90 Aug 13 21:26:34 lolek kernel: do_syscall_64+0x7f/0x190 Aug 13 21:26:34 lolek kernel: entry_SYSCALL64_slow_path+0x25/0x25 Aug 13 21:26:34 lolek kernel: RIP: 0033:0x7f4856c38b57 Aug 13 21:26:34 lolek kernel: RSP: 002b:00007fffe1110558 EFLAGS: 00000202 ORIG_RAX: 0000000000000030 Aug 13 21:26:34 lolek kernel: RAX: ffffffffffffffda RBX: 00007fffe11105e0 RCX: 00007f4856c38b57 Aug 13 21:26:34 lolek kernel: RDX: 00000000ffffffff RSI: 0000000000000002 RDI: 0000000000000007 Aug 13 21:26:34 lolek kernel: RBP: 00000000006671f8 R08: 000000000157edc0 R09: 0000000000000000 Aug 13 21:26:34 lolek kernel: R10: 000000000158e130 R11: 0000000000000202 R12: 000000000044afb0 Aug 13 21:26:34 lolek kernel: R13: 00000000006607dc R14: 00000000006615e0 R15: 00007fffe11105a0 Aug 13 21:26:34 lolek kernel: Code: 89 e6 e8 85 2b a3 ff 85 c0 75 bc e9 89 fd ff ff 0f 0b 49 8b 57 18 4c 89 e1 89 c6 48 c7 c7 00 1c 9c b8 48 83 e2 fe e8 69 cf af ff <0f> 0b 49 8b 47 10 4c 3b 78 38 75 16 49 39 c5 75 85 0f 0b 0f 0b Aug 13 21:26:34 lolek kernel: RIP: rt_spin_lock_slowlock_locked+0x2cf/0x300 RSP: ffff90d7022dfbe8 Aug 13 21:26:34 lolek kernel: ---[ end trace 0000000000000002 ]--- Jacek -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
