Messages in this thread | | | Date | Sun, 18 Sep 2022 14:17:49 +0200 | From | Thorsten Leemhuis <> | Subject | [REGESSION] Bug 216502 - slow crng initialization on Rockchip 3399 (Friendyarm NanoPi M4) |
| |
Hi, this is your Linux kernel regression tracker speaking.
I noticed a regression report in bugzilla.kernel.org. As many (most?) kernel developer don't keep an eye on it, I decided to forward it my mail. Quoting from https://bugzilla.kernel.org/show_bug.cgi?id=216502 :
> Crng initialization time has significantly increased on Rockchip > 3399-based Friendyarm NanoPi M4 in v6.0.0-rc5 compared to v5.18.0 (from > 2.36s since rootfs mounted to 8.55s since rootfs mounted). Bisection > points at 78c768e619fb ("random: vary jitter iterations based on cycle > counter speed"). Manually reverting that commit on top of v6.0.0-rc5 > fixes the issue. Attached dmesg logs correspond to vanilla v6.0.0-rc5 > ("bad") and v6.0.0-rc5 with 78c768e619fb reverted ("good"). See the ticket for more details. Apologies if I forwarded it to the wrong folks, I cover a lot of ground and thus sometimes get things wrong. :-/
BTW, I'd also like to add the report to the list of tracked regressions to ensure it's doesn't fall through the cracks in the end:
#regzbot introduced: 78c768e619fb https://bugzilla.kernel.org/show_bug.cgi?id=216502 #regzbot ignore-activity
Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
P.S.: As the Linux kernel's regression tracker I deal with a lot of reports and sometimes miss something important when writing mails like this. If that's the case here, don't hesitate to tell me in a public reply, it's in everyone's interest to set the public record straight.
| |