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module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:8075, ipnet:52.96.0.0/12, country:US] X-Rspamd-Queue-Id: 4XHyhH2QvCz57rt X-Spamd-Bar: ---- Konstantin Belousov wrote: > On Tue, Oct 01, 2024 at 11:53:33AM +0300, Konstantin Belousov wrote: >> On Tue, Oct 01, 2024 at 01:16:31PM +0700, dsdqmzk@hotmail.com wrote: >>> Hyper-V Gen2 VM, 8 cores, 8GB RAM. The panic is reproducible while >>> running `make -j8 buildworld`. Initially installed from >>> FreeBSD-15.0-CURRENT-amd64-20240926-6a4f0c063718-272495-disc1.iso, >>> updating the kernel (that I could build) to b35f0aa4952 does not help. >>> >>> panic: curthread not pinned >>> cpuid = 3 >>> time = 1727763183 >>> KDB: stack backtrace: >>> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame >>> 0xfffffe008e34a1f0 >>> vpanic() at vpanic+0x13f/frame 0xfffffe008e34a320 >>> panic() at panic+0x43/frame 0xfffffe008e34a380 >>> smp_targeted_tlb_shootdown_native() at >>> smp_targeted_tlb_shootdown_native+0x472/frame 0xfffffe008e34a4c0 >>> pmap_remove_all() at pmap_remove_all+0x560/frame 0xfffffe008e34a540 >> >> Can you obtain the core dump and then backtrace from kgdb? > > I think I found a place where this occurs. Please try the patch below. > > commit 6dcffb980fa3026092f79107ee7668918c9f5490 > Author: Konstantin Belousov > Date: Tue Oct 1 14:45:23 2024 +0300 > > hyperv: call smp_targeted_tlb_shootdown_native() with pin > > Sponsored by: The FreeBSD Foundation > MFC after: 1 week > > diff --git a/sys/dev/hyperv/vmbus/hyperv_mmu.c b/sys/dev/hyperv/vmbus/hyperv_mmu.c > index 7c29fe294093..8e982974161c 100644 > --- a/sys/dev/hyperv/vmbus/hyperv_mmu.c > +++ b/sys/dev/hyperv/vmbus/hyperv_mmu.c > @@ -241,7 +241,6 @@ hv_vm_tlb_flush(pmap_t pmap, vm_offset_t addr1, vm_offset_t addr2, > critical_exit(); > return; > native: > - sched_unpin(); > critical_exit(); > return smp_targeted_tlb_shootdown_native(pmap, addr1, > addr2, curcpu_cb, op); It seems to have helped, at least I was able to finish the buildworld successfully with patched kernel, thanks.