The Hirsute Hippo has reached End of Life, so this bug will not be fixed
for that release.
** Changed in: linux-raspi (Ubuntu Hirsute)
Status: Fix Committed => Won't Fix
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https://bugs.launchpad.net/bugs/1948807
Title:
Boot time from snap in 20/stable increases boot time on 3.5 seconds
Status in linux-raspi package in Ubuntu:
Invalid
Status in linux-raspi-5.4 package in Ubuntu:
Invalid
Status in linux-raspi2 package in Ubuntu:
Invalid
Status in linux-raspi-5.4 source package in Bionic:
Fix Committed
Status in linux-raspi2 source package in Bionic:
Fix Committed
Status in linux-raspi source package in Focal:
Fix Committed
Status in linux-raspi source package in Hirsute:
Won't Fix
Status in linux-raspi source package in Impish:
Fix Committed
Bug description:
[ Impact ]
I am seeing what looks as a regression in pi-kernel snap for UC20:
there are around 3.5 additional seconds spent in boot time. In the
image from cdimage (2021-06-30), I see:
[ 1.856540] random: crng init done
[ 1.871798] loop: module loaded
(see https://paste.ubuntu.com/p/CkfWXY5Vgf/)
while if I build an image from latest snaps in the 20/stable channel, I get:
[ 1.855481] random: crng init done
[ 5.349491] loop: module loaded
(see https://paste.ubuntu.com/p/CNt42gdDcZ/)
The pi-kernel snap revision is 353.
[ Test Case ]
$ sudo dmesg | grep -B1 -A1 'loop: module'
[ 0.791122] cacheinfo: Unable to detect cache hierarchy for CPU 0
[ 4.903386] loop: module loaded
[ 4.906092] spi-bcm2835 fe204000.spi: could not get clk: -517
[ Fix ]
Set CONFIG_BLK_DEV_LOOP_MIN_COUNT to the default value (8).
[ Where Problems Could Occur ]
Loop devices need to be created on-demand if more than 8 are required.
If that fails, user space will fail.
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