[Bug 279738] Hyper-V: Kernel panic: acquiring blockable sleep lock with spinlock or critical section held
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Date: Mon, 01 Jul 2024 13:42:59 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=279738 --- Comment #8 from commit-hook@FreeBSD.org --- A commit in branch stable/14 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=d56a912f2fb6fb26a00e950a26e420729e6ef775 commit d56a912f2fb6fb26a00e950a26e420729e6ef775 Author: Wei Hu <whu@FreeBSD.org> AuthorDate: 2024-06-15 14:07:58 +0000 Commit: Wei Hu <whu@FreeBSD.org> CommitDate: 2024-07-01 13:33:08 +0000 Hyper-V: move memory alloc call for tlb hypercall out of smp_rendezvous The allocation call could result in sleep lock violation if it is in smp_rendezvous. Move it out. Also move the pcpu memory pointer to vmbus_pcpu_data since it is only used on Hyper-V. PR: 279738 Reported by: gbe Fixes: 2b887687edc25bb4553f0d8a1183f454a85d413d MFC after: 2 weeks Sponsored by: Microsoft (cherry picked from commit d0cb4674df97aa638d5d17861c364b1625f79401) sys/dev/hyperv/vmbus/hyperv_mmu.c | 6 +-- sys/dev/hyperv/vmbus/vmbus.c | 88 +++++++++++++++++++++++++++++---------- sys/dev/hyperv/vmbus/vmbus_var.h | 5 ++- 3 files changed, 71 insertions(+), 28 deletions(-) -- You are receiving this mail because: You are the assignee for the bug.