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Diffstat (limited to 'results/classifier/105/graphic/1922')
| -rw-r--r-- | results/classifier/105/graphic/1922 | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/results/classifier/105/graphic/1922 b/results/classifier/105/graphic/1922 new file mode 100644 index 000000000..65c600dcf --- /dev/null +++ b/results/classifier/105/graphic/1922 @@ -0,0 +1,33 @@ +graphic: 0.838 +device: 0.584 +semantic: 0.541 +other: 0.440 +boot: 0.427 +instruction: 0.419 +network: 0.284 +mistranslation: 0.278 +vnc: 0.252 +assembly: 0.192 +socket: 0.131 +KVM: 0.053 + +loongson3-virt machine fails to bring up secondary CPUs +Description of problem: +When booting Debian netboot on `loongson3-virt` machine with SMP, cores other than number 0 fail to come up. Boot without SMP is successful. + +I provided the details of the first combination I tested, but I have also tested on an x86_64 host, as well as with Debian 11 (kernel `5.10.0-22-loongson-3`) on both hosts, with the same results. +Steps to reproduce: +1. `wget https://ftp.debian.org/debian/dists/bookworm/main/installer-mips64el/current/images/loongson-3/netboot/vmlinuz-6.1.0-10-loongson-3` +2. `wget https://ftp.debian.org/debian/dists/bookworm/main/installer-mips64el/current/images/loongson-3/netboot/initrd.gz` +3. `qemu-system-mips64el -M loongson3-virt -kernel vmlinuz-6.1.0-10-loongson-3 -initrd initrd.gz -append "console=ttyS0" -serial stdio -smp 2` +Additional information: +Boot is successful when removing `-smp 2` from command line. With it present, the following error is in `dmesg` (extends to all other CPUs when a larger SMP value is passed): +``` +[ 2.248229] rcu: Hierarchical SRCU implementation. +[ 2.248446] rcu: Max phase no-delay instances is 1000. +[ 2.647997] smp: Bringing up secondary CPUs ... +[ 2.749706] Booting CPU#1... +[ 7.093229] CPU1: failed to start +[ 7.096508] smp: Brought up 1 node, 1 CPU +``` +The boot eventually stalls after this. |