On Thu, 29 Jun 2017 19:08:59 +0200 Laurent Bonnaud <l.bonn...@laposte.net> wrote: > Hi, > > this bug is still there in kernel 4.11.6 : > > $ uname -a > Linux irancy.iut2.upmf-grenoble.fr 4.11.0-1-rt-amd64 #1 SMP PREEMPT RT Debian > 4.11.6-1 (2017-06-19) x86_64 GNU/Linux > > $ dmesg > [...] > [690935.587688] NOHZ: local_softirq_pending 80 > > When this error occurred the system was accessing a btrfs filesystem on a USB > disk. Might the problem be in btrfs? > > -- > Laurent. > > i think that is not only for btrfs but general usb usage (in my case this triggered when bluetooth and nfts usb stick are detected)
[ 24.865569] usb 1-1.1: Product: Bluetooth USB Host Controller [ 24.867168] usb 1-1.1: Manufacturer: Atheros Communications [ 24.868883] usb 1-1.1: SerialNumber: Alaska Day 2006 [ 25.676408] NOHZ: local_softirq_pending 80 [ 26.539786] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 26.541172] Bluetooth: BNEP filters: protocol multicast [ 26.542276] Bluetooth: BNEP socket layer initialized [ 28.008330] vboxdrv: loading out-of-tree module taints kernel. [ 28.016088] vboxdrv: Found 4 processor cores [ 28.036635] vboxdrv: TSC mode is Invariant, tentative frequency 1795918881 Hz [ 28.036641] vboxdrv: Successfully loaded version 5.2.6 (interface 0x00290000) [ 28.369292] VBoxNetFlt: Successfully started. [ 28.558477] VBoxNetAdp: Successfully started. [ 28.678656] VBoxPciLinuxInit [ 28.753930] vboxpci: IOMMU not found (not registered) [ 30.074684] ip6_tables: (C) 2000-2006 Netfilter Core Team [ 30.397299] Ebtables v2.0 registered [ 37.727019] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 37.785572] r8169 0000:01:00.0: firmware: direct-loading firmware rtl_nic/rtl8168e-3.fw [ 37.877806] r8169 0000:01:00.0 eth0: link down [ 37.877939] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 37.910313] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 37.924810] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 38.044857] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 38.794066] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 82.628975] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 83.756930] wlan0: authenticate with 00:1e:58:c4:35:f1 [ 83.777654] wlan0: send auth to 00:1e:58:c4:35:f1 (try 1/3) [ 83.779557] wlan0: authenticated [ 83.780797] wlan0: associate with 00:1e:58:c4:35:f1 (try 1/3) [ 83.784090] wlan0: RX AssocResp from 00:1e:58:c4:35:f1 (capab=0x431 status=0 aid=3) [ 83.784244] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 83.784331] wlan0: associated [ 90.498577] Bluetooth: RFCOMM TTY layer initialized [ 90.498594] Bluetooth: RFCOMM socket layer initialized [ 90.498604] Bluetooth: RFCOMM ver 1.11 [ 457.091349] NOHZ: local_softirq_pending 80 [ 496.428319] NOHZ: local_softirq_pending 80 [ 555.387813] NOHZ: local_softirq_pending 80 [ 4372.311469] usb 2-3: new high-speed USB device number 3 using xhci_hcd [ 4372.456280] usb 2-3: New USB device found, idVendor=0930, idProduct=6545 [ 4372.456288] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 4372.456290] usb 2-3: Product: DT 101 G2 [ 4372.456293] usb 2-3: Manufacturer: Kingston [ 4372.456295] usb 2-3: SerialNumber: 0018F3A9A358EBB1C438082B [ 4372.997748] usb-storage 2-3:1.0: USB Mass Storage device detected [ 4372.997927] scsi host6: usb-storage 2-3:1.0 [ 4372.998073] usbcore: registered new interface driver usb-storage [ 4373.021408] usbcore: registered new interface driver uas [ 4374.088469] scsi 6:0:0:0: Direct-Access Kingston DT 101 G2 PMAP PQ: 0 ANSI: 0 CCS [ 4374.103872] sd 6:0:0:0: Attached scsi generic sg2 type 0 [ 4375.434426] sd 6:0:0:0: [sdc] 30481152 512-byte logical blocks: (15.6 GB/14.5 GiB) [ 4375.434627] sd 6:0:0:0: [sdc] Write Protect is off [ 4375.434630] sd 6:0:0:0: [sdc] Mode Sense: 23 00 00 00 [ 4375.434791] sd 6:0:0:0: [sdc] No Caching mode page found [ 4375.434792] sd 6:0:0:0: [sdc] Assuming drive cache: write through [ 4375.457479] sdc: sdc1 [ 4375.459023] sd 6:0:0:0: [sdc] Attached SCSI removable disk [ 4376.449338] fuse init (API version 7.26) [ 4787.394613] NOHZ: local_softirq_pending 80 [ 5202.614069] perf: interrupt took too long (2512 > 2500), lowering kernel.perf_event_max_sample_rate to 79500 -- Fernando Toledo Dock Sud BBS http://bbs.docksud.com.ar telnet://bbs.docksud.com.ar
