On Fri, Aug 4, 2023 at 11:28 PM Jason A. Donenfeld <Jason@xxxxxxxxx> wrote:
>
> Hi Guo,
>
> On Tue, Jun 13, 2023 at 09:30:16PM -0400, guoren@xxxxxxxxxx wrote:
> > From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
> >
> > Add independent irq stacks for percpu to prevent kernel stack overflows.
> > It is also compatible with VMAP_STACK by arch_alloc_vmap_stack.
> >
> > Tested-by: Jisheng Zhang <jszhang@xxxxxxxxxx>
> > Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
> > Signed-off-by: Guo Ren <guoren@xxxxxxxxxx>
> > Cc: Clément Léger <cleger@xxxxxxxxxxxx>
>
> This patch broke the WireGuard test suite. I've attached the .config
> file that it uses. I'm able to fix it by setting CONFIG_EXPERT=y and
> CONFIG_IRQ_STACKS=n to essentially reverse the effect of this patch. But
> I'd rather not do that.
>
> Any idea what's up?
>
> Thanks,
> Jason
And, err, I guess I failed to describe what's broken exactly. Here's
what happens:
timeout --foreground 20m qemu-system-riscv64 \
-nodefaults \
-nographic \
-smp 4 \
-cpu rv64 -machine virt \
-m 256M \
-serial stdio \
-chardev
file,path=/home/zx2c4/Projects/wireguard-linux/tools/testing/selftests/wireguard/qemu/build/riscv64/result,id=result
\
-device virtio-serial-device -device virtserialport,chardev=result \
-no-reboot \
-monitor none \
-kernel /home/zx2c4/Projects/wireguard-linux/tools/testing/selftests/wireguard/qemu/build/riscv64/kernel/arch/riscv/boot/Image
OpenSBI v1.2
____ _____ ____ _____
/ __ \ / ____| _ \_ _|
| | | |_ __ ___ _ __ | (___ | |_) || |
| | | | '_ \ / _ \ '_ \ \___ \| _ < | |
| |__| | |_) | __/ | | |____) | |_) || |_
\____/| .__/ \___|_| |_|_____/|____/_____|
| |
|_|
Platform Name : riscv-virtio,qemu
Platform Features : medeleg
Platform HART Count : 4
Platform IPI Device : aclint-mswi
Platform Timer Device : aclint-mtimer @ 10000000Hz
Platform Console Device : uart8250
Platform HSM Device : ---
Platform PMU Device : ---
Platform Reboot Device : sifive_test
Platform Shutdown Device : sifive_test
Firmware Base : 0x80000000
Firmware Size : 236 KB
Runtime SBI Version : 1.0
Domain0 Name : root
Domain0 Boot HART : 0
Domain0 HARTs : 0*,1*,2*,3*
Domain0 Region00 : 0x0000000002000000-0x000000000200ffff (I)
Domain0 Region01 : 0x0000000080000000-0x000000008003ffff ()
Domain0 Region02 : 0x0000000000000000-0xffffffffffffffff (R,W,X)
Domain0 Next Address : 0x0000000080200000
Domain0 Next Arg1 : 0x000000008fe00000
Domain0 Next Mode : S-mode
Domain0 SysReset : yes
Boot HART ID : 0
Boot HART Domain : root
Boot HART Priv Version : v1.12
Boot HART Base ISA : rv64imafdch
Boot HART ISA Extensions : time,sstc
Boot HART PMP Count : 16
Boot HART PMP Granularity : 4
Boot HART PMP Address Bits: 54
Boot HART MHPM Count : 16
Boot HART MIDELEG : 0x0000000000001666
Boot HART MEDELEG : 0x0000000000f0b509
[terminates/hangs here]
