Messages in this thread |  | | Date | Fri, 7 Apr 2017 17:23:04 +0200 | From | Peter Zijlstra <> | Subject | Re: [printk] fbc14616f4: BUG:kernel_reboot-without-warning_in_test_stage |
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On Sat, Apr 08, 2017 at 12:13:06AM +0900, Sergey Senozhatsky wrote: > On (04/07/17 14:44), Pavel Machek wrote: > [..] > > > [..] > > > > I believe "spend at most 2 seconds in printk(), then print a warning > > > > and offload" is a solution closer to what we had before. > > > > > > a warning here can be very noisy. > > > > Well, on normally-configured it should be ok. We don't commonly see > > printk problems... If it is too noisy, perhaps we should increase from > > 2 seconds, but I don't think it will be problem. > > we are looking at different typical setups :) serial console being 45 > seconds behind logbuf does not surprise me anymore.
That does sound like you're doing something wrong and should look at reducing printk() more than anything else.
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