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Groups > linux.debian.kernel > #62347 > unrolled thread
| Started by | stefano gozzi <stefanogozzi@gmail.com> |
|---|---|
| First post | 2018-10-10 23:00 +0200 |
| Last post | 2018-10-11 10:10 +0200 |
| Articles | 2 — 2 participants |
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Bug#910765: very slow boot with backport kernel (+workaround) stefano gozzi <stefanogozzi@gmail.com> - 2018-10-10 23:00 +0200
Bug#910765: very slow boot with backport kernel (+workaround) Yves-Alexis Perez <corsac@debian.org> - 2018-10-11 10:10 +0200
| From | stefano gozzi <stefanogozzi@gmail.com> |
|---|---|
| Date | 2018-10-10 23:00 +0200 |
| Subject | Bug#910765: very slow boot with backport kernel (+workaround) |
| Message-ID | <wHtKi-4jv-19@gated-at.bofh.it> |
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Package: linux-image-4.18.0-0.bpo.1-amd64
Debian stable (updated) with kernel 4.18.0-0.bpo.1-amd64 #1 SMP Debian
4.18.6-1~bpo9+1 (2018-09-13) x86_64 GNU/Linux
updating from standard kernel to backports, the boot is very slow (gdm
login appears after ~3 minutes)
boot process is stuck before "crng init done" as you can see by messages:
Oct 10 18:06:24 gozzi-MBP NetworkManager[598]: <info> [1539187584.4027]
dhcp6 (wlp4s0b1): state changed bound -> done
Oct 10 18:09:15 gozzi-MBP kernel: [ 194.178094] random: crn
Workaround that solves the problem: install the package haveged
workaround tried but not working
install backport headers
install rng-tools
hardware informations
Manufacturer: Apple Inc.
Product Name: Mac-C3EC7CD22292981F
Version: MacBookPro10,1
thanks for the effort
stefano
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| From | Yves-Alexis Perez <corsac@debian.org> |
|---|---|
| Date | 2018-10-11 10:10 +0200 |
| Message-ID | <wHEcG-2ge-7@gated-at.bofh.it> |
| In reply to | #62347 |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On Wed, 2018-10-10 at 22:49 +0200, stefano gozzi wrote: > Debian stable (updated) with kernel 4.18.0-0.bpo.1-amd64 #1 SMP Debian > 4.18.6-1~bpo9+1 (2018-09-13) x86_64 GNU/Linux > > updating from standard kernel to backports, the boot is very slow (gdm > login appears after ~3 minutes) Hi, can you confirm that reverting to 4.17 fixes the issue? It looks similar to #910631 (except with LightDM, and I'm waiting confirmation on the kernel involvement on that one). LightDM seems to use /dev/urandom which shouldn't block at all, I wonder if there's something else involved calling getrandom() without O_NONBLOCK, or if there's indeed a regression in 4.18 rng. Regards, - -- Yves-Alexis -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEE8vi34Qgfo83x35gF3rYcyPpXRFsFAlu/A+IACgkQ3rYcyPpX RFviZAgAtbkjzapCuWOTvO6rJ5WseDMr5Z88dblxnGyqY7wdh+H2BrwYRyxiZZXw vyHhXJDInh+Zfii+cQiZ9derVZwLFkuNULagUNbJDbAWceMYqw1fgctIurRvCWJ0 XBBsj/KMuzSMu6d5bw7X3P4t9nnPAxoBnlipV3eKdoau8rTqDygeViHBrZtAlMa1 DvNv2UZ2wicd3H0jnDbm0gAlrh89ZdD9nQ4nASr5kfg29z8F0t7/wFrWefdnbU8j DfkcxmB4Ok4C9Sx/etooxVcJAFvPQe6LaN1Ytu+Yr9vd3NcWKBteblXH30Boqmn4 QOa3f20tdOViYCAdu2vJZD7+TYF/bQ== =nbiP -----END PGP SIGNATURE-----
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