After some investigation, it seems the issue appears when there is high i/o on an USB drive, so nothing related with SSH (I just use SSH to copy files).
Some others seems to have the same issue under Linux with the ROCK64 : * https://forum.pine64.org/showthread.php?tid=5137 * https://github.com/ayufan-rock64/linux-build/issues/112 On the first link, they talk about disabling UAS. Do you have any advice to do so under OpenBSD? Or any other advice now I think I get where is the problem ? Regards. * Thuban <thu...@yeuxdelibad.net> le [06-01-2019 10:51:03 +0100]: > While transferring files over SSH (either scp or sftp used) from/to an USB > drive > plugged in a ROCK64 from/to another machine, the CPU usage keep increasing and > finally, the ROCK64 freeze. > Because of the freeze, I'm not sure how to get errors. Please telle me how to > debug this. > > Some details : > - Both systems (server and client) are on OpenBSD : client is 6.4, ROCK64 is > last -current. > - The usb drive is mounted with this fstab entry : > 782f1ddb783cdd13.b /mnt/bigstorage ffs rw,noexec,nodev,nosuid 1 2 > - The issue only happens when transferring from/to the USB hard drive. > - dmesg : > > OpenBSD 6.4-current (GENERIC.MP) #343: Mon Dec 31 18:12:02 MST 2018 > > dera...@arm64.openbsd.org:/usr/src/sys/arch/arm64/compile/GENERIC.MP > real mem = 4213874688 (4018MB) > avail mem = 4050837504 (3863MB) > mainbus0 at root: Pine64 Rock64 > cpu0 at mainbus0 mpidr 0: ARM Cortex-A53 r0p4 > cpu0: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 > D-cache > cpu0: 256KB 64b/line 16-way L2 cache > efi0 at mainbus0: UEFI 2.0.5 > efi0: Das U-boot rev 0x0 > psci0 at mainbus0: PSCI 1.0 > syscon0 at mainbus0: "syscon" > rkclock0 at mainbus0 > syscon1 at mainbus0: "syscon" > ampintc0 at mainbus0 nirq 160, ncpu 4 ipi: 0, 1: "interrupt-controller" > rkpinctrl0 at mainbus0: "pinctrl" > rkgpio0 at rkpinctrl0 > rkgpio1 at rkpinctrl0 > rkgpio2 at rkpinctrl0 > rkgpio3 at rkpinctrl0 > simplebus0 at mainbus0: "amba" > agtimer0 at mainbus0: tick rate 24000 KHz > com0 at mainbus0: ns16550, no working fifo > com0: console > rkiic0 at mainbus0 > iic0 at rkiic0 > rkpmic0 at iic0 addr 0x18: RK805 > rktemp0 at mainbus0 > dwmmc0 at mainbus0: 49 MHz base clock > sdmmc0 at dwmmc0: 4-bit, sd high-speed, mmc high-speed, dma > dwmmc1 at mainbus0: 49 MHz base clock > sdmmc1 at dwmmc1: 8-bit, mmc high-speed, dma > dwge0 at mainbus0 > dwge0: address: d6:8f:58:d2:50:ce > rgephy0 at dwge0 phy 0: RTL8169S/8110S/8211 PHY, rev. 6 > ehci0 at mainbus0 > usb0 at ehci0: USB revision 2.0 > uhub0 at usb0 configuration 1 interface 0 "Generic EHCI root hub" rev > 2.00/1.00 addr 1 > cpu1 at mainbus0 mpidr 1: ARM Cortex-A53 r0p4 > cpu1: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 > D-cache > cpu1: 256KB 64b/line 16-way L2 cache > cpu2 at mainbus0 mpidr 2: ARM Cortex-A53 r0p4 > cpu2: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 > D-cache > cpu2: 256KB 64b/line 16-way L2 cache > cpu3 at mainbus0 mpidr 3: ARM Cortex-A53 r0p4 > cpu3: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 > D-cache > cpu3: 256KB 64b/line 16-way L2 cache > scsibus0 at sdmmc1: 2 targets, initiator 0 > sd0 at scsibus0 targ 1 lun 0: <SD/MMC, NCard, 0000> SCSI2 0/direct > removable > sd0: 29600MB, 512 bytes/sector, 60620800 sectors > scsibus1 at sdmmc0: 2 targets, initiator 0 > sd1 at scsibus1 targ 1 lun 0: <SD/MMC, USD00, 0010> SCSI2 0/direct > removable > sd1: 15080MB, 512 bytes/sector, 30883840 sectors > umass0 at uhub0 port 1 configuration 1 interface 0 "Western Digital Ext > HDD 1021" rev 2.00/20.21 addr 2 > umass0: using SCSI over Bulk-Only > scsibus2 at umass0: 2 targets, initiator 0 > sd2 at scsibus2 targ 1 lun 0: <WD, Ext HDD 1021, 2021> SCSI2 0/direct > fixed serial.10581021383235373034 > sd2: 1907727MB, 512 bytes/sector, 3907024896 sectors > vscsi0 at root > scsibus3 at vscsi0: 256 targets > softraid0 at root > scsibus4 at softraid0: 256 targets > bootfile: sd0a:/bsd > boot device: sd0 > root on sd0a (532ea4ce9a5e001c.a) swap on sd0b dump on sd0b > WARNING: / was not properly unmounted > > > > > > > -- > thuban > -- thuban
