Kernel 5.3RC (Release Candidate) series

**Doug S** · July 23rd, 2019

Kernel 5.3-rc1 is available from the Ubuntu mainline PPA or kernel.org.

I am completing some tests on 5.2 before trying 5.3-rc1.

We have a running thread during each mainline kernel release cycle.

Previous cycle threads:
5.2
5.1
5.0
4.20
4.19 ?
4.18
4.17
4.16
4.15
4.14

**Doug S** · September 2nd, 2019

This has been a quiet cycle.

Has anyone tried 5.3-rc7 yet?
I am having difficulty downloading linux-headers-5.3.0-050300rc7_5.3.0-050300rc7.201909021831_all.deb from the Ubuntu PPA, and am wondering if the issue is on my side of things or the file itself is there, but empty.

Code:

doug@s15:~/test_kernels$ ls -l linux-headers-5.3.0-050300rc*
-rw-rwxr--+ 1 doug doug 10914276 Aug  4 23:32 linux-headers-5.3.0-050300rc3_5.3.0-050300rc3.201908042232_all.deb
-rw-rwxr--+ 1 doug doug  1175776 Aug  4 23:32 linux-headers-5.3.0-050300rc3-lowlatency_5.3.0-050300rc3.201908042232_amd64.deb
-rw-rwxr--+ 1 doug doug 10911284 Sep  2 14:39 linux-headers-5.3.0-050300rc6_5.3.0-050300rc6.201908252033_all.deb
-rw-r--r--  1 doug doug        0 Sep  2 14:04 linux-headers-5.3.0-050300rc7_5.3.0-050300rc7.201909021831_all.deb
-rw-rwxr--+ 1 doug doug  1178016 Sep  2 13:57 linux-headers-5.3.0-050300rc7-lowlatency_5.3.0-050300rc7.201909021831_amd64.deb

EDIT: I downloaded the -rc6 "all" headers file, just to check that the file issue didn't occur in a previous week, since I never downloaded -rc4, -5, or -6.

**IanW** · September 3rd, 2019

I see that file showing a size of 10M as of 18.33 on Sept 2nd.
Guess you were a little early for it?

https://kernel.ubuntu.com/~kernel-pp...021831_all.deb

**Doug S** · September 3rd, 2019

Originally Posted by IanW

I see that file showing a size of 10M as of 18.33 on Sept 2nd.
Guess you were a little early for it?

https://kernel.ubuntu.com/~kernel-pp...021831_all.deb

I don't know. When I closed firefox, later in the day, it showed 4 hung download attempts, that I hadn't noticed prior. Anyway, now I got the file fine. Thanks.

**Doug S** · September 3rd, 2019

between kernel 5.3-rc3 and 5.3-rc7 (I missed -rc4, -rc5, and -rc6) there were just a small number of kernel configuration changes for the Ubuntu mainline PPA kernels:

Code:

doug@s15:~/temp-k-git/linux$ scripts/diffconfig .config-5.3.0-050300rc3-lowlatency .config-5.3.0-050300rc7-lowlatency
-IXP4XX_NPE m
-IXP4XX_QMGR m
-REGMAP_SOUNDWIRE m
-SOUNDWIRE_BUS m
 GCC_VERSION 90100 -> 90201
 KERNEL_GZIP y -> n
 KERNEL_LZ4 n -> y
 TEST_BLACKHOLE_DEV n -> m
 VIDEO_VIMC n -> m

My main kernel testing and compiling computer is still an Ubuntu Server 16.04.5 LTS, for which the lz4 package is not available (I don't think it is available for 18.04 LTS either). So, to be able to compile the kernel I had to do this:

Code:

doug@s15:~/temp-k-git/linux$ cp .config-5.3.0-050300rc7-lowlatency .config
doug@s15:~/temp-k-git/linux$ scripts/config --disable DEBUG_INFO  <<< I always do this to reduce compile time and kernel size.
doug@s15:~/temp-k-git/linux$ scripts/config --disable KERNEL_LZ4
doug@s15:~/temp-k-git/linux$ scripts/config --enable KERNEL_GZIP