| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <CAK9=C2UfK=rap06A4GLbbhSvGJYpLHb9LMqU_GuxFo0FVQnJHw@mail.gmail.com> Date: Thu, 14 Mar 2024 11:51:53 +0530 From: Anup Patel <apatel@...tanamicro.com> To: 20240307140307.646078-1-apatel@...tanamicro.com Cc: tglx@...utronix.de, palmer@...belt.com, paul.walmsley@...ive.com, robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org, maz@...nel.org, bjorn@...nel.org, atishp@...shpatra.org, ajones@...tanamicro.com, sunilvl@...tanamicro.com, saravanak@...gle.com, linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, dawei.li@...ngroup.cn Subject: Re: [PATCH v16 0/9] Linux RISC-V AIA Support On Thu, Mar 14, 2024 at 11:17 AM Dawei Li <dawei.li@...ngroup.cn> wrote: > > Hi Anup, > > Thanks for the great work on AIA! > > Firstly I must apologize for the top posting cuz I miss the series mail for > my inbox. And for the record, I am replying to [1]. > > After I checkout riscv_aia_v16 branch at https://github.com/avpatel/linuxgit, > some call traces about spurious interrupt are screaming: > > [ 1.244292] irq 11: nobody cared (try booting with the "irqpoll" option) > [ 1.244707] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.8.0-rc6-00055-gd7d4d086b79a #14 > [ 1.244932] Hardware name: riscv-virtio,qemu (DT) > [ 1.245130] Call Trace: > [ 1.245337] [<ffffffff80005f32>] dump_backtrace+0x1c/0x24 > [ 1.245559] [<ffffffff809023f4>] show_stack+0x2c/0x38 > [ 1.245761] [<ffffffff8090ec8c>] dump_stack_lvl+0x3c/0x54 > [ 1.245979] [<ffffffff8090ecb8>] dump_stack+0x14/0x1c > [ 1.246116] [<ffffffff8090368c>] __report_bad_irq+0x3e/0xae > [ 1.246276] [<ffffffff8006a938>] note_interrupt+0x1f4/0x23e > [ 1.246382] [<ffffffff800679e2>] handle_irq_event_percpu+0x42/0x50 > [ 1.246508] [<ffffffff80067a2c>] handle_irq_event+0x3c/0x68 > [ 1.246628] [<ffffffff8006b7a4>] handle_fasteoi_irq+0xac/0x176 > [ 1.246788] [<ffffffff80066c3c>] generic_handle_domain_irq+0x1c/0x2a > [ 1.246928] [<ffffffff80473f0e>] imsic_handle_irq+0x72/0x12a > [ 1.247041] [<ffffffff80066c3c>] generic_handle_domain_irq+0x1c/0x2a > [ 1.247165] [<ffffffff80472470>] riscv_intc_aia_irq+0x26/0x38 > [ 1.247291] [<ffffffff8090ed0a>] handle_riscv_irq+0x4a/0x74 > [ 1.247430] [<ffffffff80918af6>] call_on_irq_stack+0x32/0x40 > [ 1.247626] handlers: > [ 1.247721] [<000000004ebb6fe3>] vm_interrupt > [ 1.248314] Disabling IRQ #11 > [ 1.303510] irq 12: nobody cared (try booting with the "irqpoll" option) > [ 1.303700] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc6-00055-gd7d4d086b79a #14 > [ 1.304768] Hardware name: riscv-virtio,qemu (DT) > [ 1.305460] Call Trace: > [ 1.305868] [<ffffffff80005f32>] dump_backtrace+0x1c/0x24 > [ 1.306621] [<ffffffff809023f4>] show_stack+0x2c/0x38 > [ 1.307295] [<ffffffff8090ec8c>] dump_stack_lvl+0x3c/0x54 > [ 1.308025] [<ffffffff8090ecb8>] dump_stack+0x14/0x1c > [ 1.308698] [<ffffffff8090368c>] __report_bad_irq+0x3e/0xae > [ 1.309698] [<ffffffff8006a938>] note_interrupt+0x1f4/0x23e > [ 1.310568] [<ffffffff800679e2>] handle_irq_event_percpu+0x42/0x50 > [ 1.311542] [<ffffffff80067a2c>] handle_irq_event+0x3c/0x68 > [ 1.312298] [<ffffffff8006b7a4>] handle_fasteoi_irq+0xac/0x176 > [ 1.313127] [<ffffffff80066c3c>] generic_handle_domain_irq+0x1c/0x2a > [ 1.315375] [<ffffffff80473f0e>] imsic_handle_irq+0x72/0x12a > [ 1.316163] [<ffffffff80066c3c>] generic_handle_domain_irq+0x1c/0x2a > [ 1.317078] [<ffffffff80472470>] riscv_intc_aia_irq+0x26/0x38 > [ 1.318036] [<ffffffff8090ed0a>] handle_riscv_irq+0x4a/0x74 > [ 1.318934] [<ffffffff8090f3e6>] do_irq+0x4a/0x4c > [ 1.319831] [<ffffffff809189ac>] ret_from_exception+0x0/0x64 > [ 1.320860] [<ffffffff8091845c>] _raw_spin_unlock_irqrestore+0x1a/0x2e > [ 1.321887] [<ffffffff80473d06>] imsic_local_timer_callback+0x50/0x5c > [ 1.322957] [<ffffffff8008ade4>] call_timer_fn.isra.0+0x14/0x5e > [ 1.323781] [<ffffffff8008b44a>] run_timer_softirq+0x388/0x3a8 > [ 1.324579] [<ffffffff80918c7e>] __do_softirq+0x100/0x252 > [ 1.325304] [<ffffffff80018464>] irq_exit_rcu+0x7c/0xa6 > [ 1.326126] [<ffffffff8090ed24>] handle_riscv_irq+0x64/0x74 > [ 1.327535] [<ffffffff80918af6>] call_on_irq_stack+0x32/0x40 > [ 1.328703] handlers: > [ 1.330724] [<000000008b6c4f15>] serial8250_interrupt > [ 1.331573] Disabling IRQ #12 > [ 1.350231] Run /sbin/init as init process > > And I take a look on /proc/interrupts, spurious interrupts are happening: > ~ # cat /proc/interrupts > CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7 CPU8 CPU9 CPU10 CPU11 CPU12 CPU13 CPU14 CPU15 > 10: 83 222 350 163 71 101 193 68 54 60 174 50 51 48 48 46 RISC-V INTC 5 Edge riscv-timer > 11: 100001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 APLIC-MSI-d000000.aplic 8 Level -fasteoi virtio0 > 12: 0 100000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 APLIC-MSI-d000000.aplic 10 Level -fasteoi ttyS0 > 13: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 APLIC-MSI-d000000.aplic 11 Level -fasteoi 101000.rtc > IPI0: 3 8 4 7 7 6 5 4 7 7 7 5 6 10 4 5 Rescheduling interrupts > IPI1: 727 517 431 448 497 456 514 476 488 466 455 456 443 443 439 433 Function call interrupts > IPI2: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 CPU stop interrupts > IPI3: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 CPU stop (for crash dump) interrupts > IPI4: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IRQ work interrupts > IPI5: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Timer broadcast interrupts > > But when I switched back to V15, everything is fine. > > Here are some of info _maybe_ helpful: > kernel: d7d4d086b79a11ad8bbcaf732c7830faa3f3192f > qemu: e1007b6bab5cf97705bf4f2aaec1f607787355b8 > qemu cmdline: qemu-system-riscv64 -M virt,aia=aplic-imsic -m 256M -nographic -kernel ~/src/linux/arch/riscv/boot/Image -drive file=rootfs.img,format=raw,id=hd0 -device virtio-blk-device,drive=hd0 -append "root=/dev/vda rw console=ttyS0" -smp 16 > config: defconfig(make ARCH=riscv defconfig) > > And I am happy to provide any extra info if needed. > > After I take a git diff and check your changelog: > [Quoting from [1]] > - Simplified aplic_msi_irq_eoi() in PATCH7 based on the section "4.9.2 Special > consideration for level-sensitive interrupt sources" of the RISC-V AIA > specification and also provided handler name. > > I apologize if I miss something. > > [1] https://lore.kernel.org/lkml/20240307140307.646078-1-apatel@ventanamicro.com/ The QEMU APLIC emulation of the setipnum register was broken. The corresponding QEMU fixes are already accepted and queued by the maintainer. Please refer, https://lore.kernel.org/all/20240306095722.463296-1-apatel@ventanamicro.com/ Regards, Anup
Powered by blists - more mailing lists