[Bug 1880607] Re: Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

2020-05-28 Thread Markus Birth
Kernel 5.4.0-1012.12 fixes the issue.

** Changed in: linux-raspi (Ubuntu)
   Status: Confirmed => Fix Released

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Title:
  Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

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[Bug 1880607] Re: Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

2020-05-27 Thread Markus Birth
A buddy is running a Pi 4 with the official 20.04 Pi image (freshly set
up) and with the 1011 kernel WITHOUT ISSUES. His config looks like this:

cmdline.txt:

root=LABEL=writable rootfstype=ext4 rootwait console=serial0,115200
console=tty1 net.ifnames=0 dwc_otg.lpm_enable=0 elevator=deadline fixrtc


config.txt:

[pi4]
kernel=uboot_rpi_4.bin
max_framebuffers=2

[all]
arm_64bit=1
device_tree_address=0x0300
enable_uart=1
dtparam=audio=on
dtparam=i2c_arm=on
dtparam=spi=on
cmdline=cmdline.txt
over_voltage=3
arm_freq=1900
gpu_freq=600


I don't have time to experiment at the moment, though.

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Title:
  Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

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[Bug 1880607] Re: Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

2020-05-27 Thread Markus Birth
My cmdline.txt:

root=LABEL=rpi4-root rootfstype=ext4 rootwait verbose nosplash
console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 net.ifnames=0
dwc_otg.lpm_enable=0 dwc_otg.fiq_fix_enable=1 fsck.repair=yes


My config.txt:

[pi4]
# Route interrupts to ARM cores using legacy interrupt controller (default: 0 = 
route via GIC-400)
enable_gic=1
armstub=armstub8-gic.bin

# Fix graphical glitches
dtoverlay=vc4-fkms-v3d

[all]
# evade u-boot, just boot directly (vmlinuz has to be uncompressed!)
kernel=vmlinuz
initramfs initrd.img followkernel

# boot in AArch64 (64-bit) mode
arm_64bit=1

# GPU shared memory, default: 64 (too low might disable features)
gpu_mem=32

# Energy Efficient Ethernet off
dtparam=eee=off

# Use red PWR LED for activity indicator
dtparam=pwr_led_trigger=cpu

# Use green ACT LED for MicroSD indicator
dtparam=act_led_trigger=mmc0

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Title:
  Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

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[Bug 1880607] Re: Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

2020-05-26 Thread Launchpad Bug Tracker
Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: linux-raspi (Ubuntu)
   Status: New => Confirmed

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Title:
  Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

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[Bug 1880607] Re: Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

2020-05-25 Thread Markus Birth
Downgrading to 5.4.0-1008-raspi fixes the issue.

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Title:
  Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

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[Bug 1880607] Re: Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

2020-05-25 Thread Markus Birth
** Attachment added: "ubuntu-bug linux-raspi (gzipped)"
   
https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1880607/+attachment/5376655/+files/apport.linux-raspi.2ccw0izb.apport.gz

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  Raspberry Pi 4 extremely slow file i/o after upgrade to 20.04

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