* Boot stuck at "smp: Bringing up secondary CPUs ..."
@ 2019-02-05 15:27 Andreas Schwab
[not found] ` <F77EA382-959C-4142-9A00-F1EBB58D37F8@wdc.com>
0 siblings, 1 reply; 8+ messages in thread
From: Andreas Schwab @ 2019-02-05 15:27 UTC (permalink / raw)
To: linux-riscv
What does it mean when the boot hangs during smp bringup (on the
hifive-u)?
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
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^ permalink raw reply [flat|nested] 8+ messages in thread[parent not found: <F77EA382-959C-4142-9A00-F1EBB58D37F8@wdc.com>]
* Re: Boot stuck at "smp: Bringing up secondary CPUs ..." [not found] ` <F77EA382-959C-4142-9A00-F1EBB58D37F8@wdc.com> @ 2019-02-06 9:16 ` Andreas Schwab 2019-02-06 9:33 ` Anup Patel 0 siblings, 1 reply; 8+ messages in thread From: Andreas Schwab @ 2019-02-06 9:16 UTC (permalink / raw) To: Atish Patra; +Cc: linux-riscv On Feb 05 2019, Atish Patra <Atish.Patra@wdc.com> wrote: > Are you loading Linux from U-Boot and openSBI ? No. Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different." _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Boot stuck at "smp: Bringing up secondary CPUs ..." 2019-02-06 9:16 ` Andreas Schwab @ 2019-02-06 9:33 ` Anup Patel 2019-02-06 10:04 ` Andreas Schwab 0 siblings, 1 reply; 8+ messages in thread From: Anup Patel @ 2019-02-06 9:33 UTC (permalink / raw) To: Andreas Schwab; +Cc: Atish Patra, linux-riscv On Wed, Feb 6, 2019 at 2:47 PM Andreas Schwab <schwab@suse.de> wrote: > > On Feb 05 2019, Atish Patra <Atish.Patra@wdc.com> wrote: > > > Are you loading Linux from U-Boot and openSBI ? > > No. We requite Atish's SMP fixes to boot upstream kernel on Unleashed board. I have applied Atish's v2 patches on "v5.0-rc5_unleashed" branch of https://github.com/avpatel/linux.git Regards, Anup _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Boot stuck at "smp: Bringing up secondary CPUs ..." 2019-02-06 9:33 ` Anup Patel @ 2019-02-06 10:04 ` Andreas Schwab 2019-02-06 10:17 ` Anup Patel 0 siblings, 1 reply; 8+ messages in thread From: Andreas Schwab @ 2019-02-06 10:04 UTC (permalink / raw) To: Anup Patel; +Cc: Atish Patra, linux-riscv On Feb 06 2019, Anup Patel <anup@brainfault.org> wrote: > On Wed, Feb 6, 2019 at 2:47 PM Andreas Schwab <schwab@suse.de> wrote: >> >> On Feb 05 2019, Atish Patra <Atish.Patra@wdc.com> wrote: >> >> > Are you loading Linux from U-Boot and openSBI ? >> >> No. > > We requite Atish's SMP fixes to boot upstream kernel on Unleashed board. The same boot image has booted sucessfully before. The problem with SMP bringup only started when I started experimenting with openSBI and U-Boot. Coincidence? Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different." _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Boot stuck at "smp: Bringing up secondary CPUs ..." 2019-02-06 10:04 ` Andreas Schwab @ 2019-02-06 10:17 ` Anup Patel 2019-02-06 10:33 ` Andreas Schwab 0 siblings, 1 reply; 8+ messages in thread From: Anup Patel @ 2019-02-06 10:17 UTC (permalink / raw) To: Andreas Schwab; +Cc: Atish Patra, linux-riscv On Wed, Feb 6, 2019 at 3:34 PM Andreas Schwab <schwab@suse.de> wrote: > > On Feb 06 2019, Anup Patel <anup@brainfault.org> wrote: > > > On Wed, Feb 6, 2019 at 2:47 PM Andreas Schwab <schwab@suse.de> wrote: > >> > >> On Feb 05 2019, Atish Patra <Atish.Patra@wdc.com> wrote: > >> > >> > Are you loading Linux from U-Boot and openSBI ? > >> > >> No. > > > > We requite Atish's SMP fixes to boot upstream kernel on Unleashed board. > > The same boot image has booted sucessfully before. The problem with SMP > bringup only started when I started experimenting with openSBI and > U-Boot. Coincidence? Lot of kernel bugs are hidden due to FDT fixups done by BBL at boot-time. This particular issue is seen because BBL updates /cpus DT node whereas OpenSBI does not. In fact, OpenSBI only does minimal possible changes to DTB passed by previous booting stages. Regards, Anup _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Boot stuck at "smp: Bringing up secondary CPUs ..." 2019-02-06 10:17 ` Anup Patel @ 2019-02-06 10:33 ` Andreas Schwab 2019-02-06 10:37 ` Anup Patel 0 siblings, 1 reply; 8+ messages in thread From: Andreas Schwab @ 2019-02-06 10:33 UTC (permalink / raw) To: Anup Patel; +Cc: Atish Patra, linux-riscv On Feb 06 2019, Anup Patel <anup@brainfault.org> wrote: > On Wed, Feb 6, 2019 at 3:34 PM Andreas Schwab <schwab@suse.de> wrote: >> >> On Feb 06 2019, Anup Patel <anup@brainfault.org> wrote: >> >> > On Wed, Feb 6, 2019 at 2:47 PM Andreas Schwab <schwab@suse.de> wrote: >> >> >> >> On Feb 05 2019, Atish Patra <Atish.Patra@wdc.com> wrote: >> >> >> >> > Are you loading Linux from U-Boot and openSBI ? >> >> >> >> No. >> > >> > We requite Atish's SMP fixes to boot upstream kernel on Unleashed board. >> >> The same boot image has booted sucessfully before. The problem with SMP >> bringup only started when I started experimenting with openSBI and >> U-Boot. Coincidence? > > Lot of kernel bugs are hidden due to FDT fixups done by BBL at boot-time. Then why does it fail with BBL? Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different." _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Boot stuck at "smp: Bringing up secondary CPUs ..." 2019-02-06 10:33 ` Andreas Schwab @ 2019-02-06 10:37 ` Anup Patel 2019-02-06 10:44 ` Andreas Schwab 0 siblings, 1 reply; 8+ messages in thread From: Anup Patel @ 2019-02-06 10:37 UTC (permalink / raw) To: Andreas Schwab; +Cc: Atish Patra, linux-riscv On Wed, Feb 6, 2019 at 4:03 PM Andreas Schwab <schwab@suse.de> wrote: > > On Feb 06 2019, Anup Patel <anup@brainfault.org> wrote: > > > On Wed, Feb 6, 2019 at 3:34 PM Andreas Schwab <schwab@suse.de> wrote: > >> > >> On Feb 06 2019, Anup Patel <anup@brainfault.org> wrote: > >> > >> > On Wed, Feb 6, 2019 at 2:47 PM Andreas Schwab <schwab@suse.de> wrote: > >> >> > >> >> On Feb 05 2019, Atish Patra <Atish.Patra@wdc.com> wrote: > >> >> > >> >> > Are you loading Linux from U-Boot and openSBI ? > >> >> > >> >> No. > >> > > >> > We requite Atish's SMP fixes to boot upstream kernel on Unleashed board. > >> > >> The same boot image has booted sucessfully before. The problem with SMP > >> bringup only started when I started experimenting with openSBI and > >> U-Boot. Coincidence? > > > > Lot of kernel bugs are hidden due to FDT fixups done by BBL at boot-time. > > Then why does it fail with BBL? Not sure what case you referring with BBL. Please review Atish's SMP fix patches. Regards, Anup _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Boot stuck at "smp: Bringing up secondary CPUs ..." 2019-02-06 10:37 ` Anup Patel @ 2019-02-06 10:44 ` Andreas Schwab 0 siblings, 0 replies; 8+ messages in thread From: Andreas Schwab @ 2019-02-06 10:44 UTC (permalink / raw) To: Anup Patel; +Cc: Atish Patra, linux-riscv On Feb 06 2019, Anup Patel <anup@brainfault.org> wrote: > Not sure what case you referring with BBL. I don't refer anything. It just doesn't boot any more. > Please review Atish's SMP fix patches. The very same image has booted previously without any issues. Andreas. -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different." _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv ^ permalink raw reply [flat|nested] 8+ messages in thread
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2019-02-05 15:27 Boot stuck at "smp: Bringing up secondary CPUs ..." Andreas Schwab
[not found] ` <F77EA382-959C-4142-9A00-F1EBB58D37F8@wdc.com>
2019-02-06 9:16 ` Andreas Schwab
2019-02-06 9:33 ` Anup Patel
2019-02-06 10:04 ` Andreas Schwab
2019-02-06 10:17 ` Anup Patel
2019-02-06 10:33 ` Andreas Schwab
2019-02-06 10:37 ` Anup Patel
2019-02-06 10:44 ` Andreas Schwab
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