On Mon, Jun 30, 2014 at 01:20:30PM -0700, Andrew Morton wrote: > On Sun, 29 Jun 2014 00:50:50 +0200 Andreas Bombe <a...@debian.org> wrote: > > > None of the post 3.15 kernel boot for me. They all hang at the GRUB > > screen telling me it loaded and started the kernel, but the kernel > > itself stops before it prints anything (or even replaces the GRUB > > background graphics). > > > > I bisected it down to 939f04bec1a4ef6ba4370b0f34b01decc844b1b1 "printk: > > enable interrupts before calling console_trylock_for_printk()". > > Reverting that patch on the latest kernel (git 24b414d5a7) allows me to > > boot normally. > > OK, thanks, I queued the below reversion. I'll hold off for a week or > two in case we come up with a fix. > > > I fixed the conflict in the revert by leaving in the "if > > (in_sched) return printed_len;". > > hm, that might have been buggy - we still need to the lockdep_on() and > local_irq_restore(). You're a victim of > someone-stuck-a-random-return-in-the-middle-of-a-function.
To be honest, I just randomly picked one possible conflict resolution to confirm whether the revert actually helps. > Please review this and if possible, run-time test it? Against current > mainline. I've applied it (actually I picked the one from your patch series but they are identical I think) and it does boot. I'm writing this on the latest kernel + your revert. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
