Weird: 30 sec delay during early boot
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Quoted 8 lines · Jeff Garzik
This appeared in -bk-latest in the past day or two.
BK-current on x86-64 (config/dmesg/lspci attached) will pause for 30 wall-clock seconds immediately after being loaded by the bootloader, then will proceed to boot successfully and function correctly. This is reproducible on every boot.
So, 30 seconds with no printk output, then boots normally.
Boot with earlyprintk=serial,ttySx,baud or earlyprintk=vga That should enable printk from the beginning and may give some clues.
-Andi
Quoted 10 lines · Andi Kleen
Quoted 7 lines · Jeff Garzik
This appeared in -bk-latest in the past day or two.
BK-current on x86-64 (config/dmesg/lspci attached) will pause for 30 wall-clock seconds immediately after being loaded by the bootloader, then will proceed to boot successfully and function correctly. This is reproducible on every boot.
Quoted 6 lines
Quoted 1 line
So, 30 seconds with no printk output, then boots normally.
Boot with earlyprintk=serial,ttySx,baud or earlyprintk=vga That should enable printk from the beginning and may give some clues.
would early printk show something that dmesg(8) would not?
Jeff
Quoted 1 line
would early printk show something that dmesg(8) would not?
Yes, it's real time and you can see where the delay occurs.
-Andi