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[2001:470:1f1c:a0::2]) by smtp.gmail.com with ESMTPSA id c17sm10035199wrq.4.2021.10.17.05.24.31 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 17 Oct 2021 05:24:31 -0700 (PDT) Message-ID: Date: Sun, 17 Oct 2021 13:24:29 +0100 List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 To: FreeBSD Current Content-Language: en-GB From: Graham Perrin Subject: =?UTF-8?Q?VMMR0InitVM_=e2=80=a6_kernel_panic=3a_fatal_trap_9=3a_gen?= =?UTF-8?Q?eral_protection_fault_while_in_kernel_mode?= Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 4HXK2917vPz3FVp X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20210112 header.b="cZGC/VPG"; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of grahamperrin@gmail.com designates 2a00:1450:4864:20::331 as permitted sender) smtp.mailfrom=grahamperrin@gmail.com X-Spamd-Result: default: False [-1.67 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20210112]; NEURAL_HAM_MEDIUM(-0.42)[-0.420]; FROM_HAS_DN(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; NEURAL_HAM_LONG(-1.00)[-0.996]; RCPT_COUNT_ONE(0.00)[1]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::331:from]; NEURAL_SPAM_SHORT(0.75)[0.751]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; RCVD_TLS_ALL(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim] X-ThisMailContainsUnwantedMimeParts: N Is it worth opening a bug for what's below? GENERIC-NODEBUG, main-n249988-2c614481fd5 Gut feeling: it might be very difficult to reproduce. From : … Unread portion of the kernel message buffer: VMMR0InitVM: eflags=246 fKernelFeatures=0x0 (SUPKERNELFEATURES_SMAP=0) Fatal trap 9: general protection fault while in kernel mode cpuid = 3; apic id = 03 instruction pointer     = 0x20:0xffffffff810bc0a6 stack pointer           = 0x28:0xfffffe00c5303ba0 frame pointer           = 0x28:0xfffffe00c5303ba0 code segment            = base 0x0, limit 0xfffff, type 0x1b                         = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags        = interrupt enabled, resume, IOPL = 0 current process         = 19 (arc_reap) trap number             = 9 panic: general protection fault cpuid = 3 time = 1634464447 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00c53038a0 vpanic() at vpanic+0x187/frame 0xfffffe00c5303900 panic() at panic+0x43/frame 0xfffffe00c5303960 trap_fatal() at trap_fatal+0x387/frame 0xfffffe00c53039c0 trap() at trap+0x8b/frame 0xfffffe00c5303ad0 calltrap() at calltrap+0x8/frame 0xfffffe00c5303ad0 --- trap 0x9, rip = 0xffffffff810bc0a6, rsp = 0xfffffe00c5303ba0, rbp = 0xfffffe00c5303ba0 --- pmap_invalidate_all_pcid_noinvpcid_cb() at pmap_invalidate_all_pcid_noinvpcid_cb+0x36/frame 0xfffffe00c5303ba0 smp_targeted_tlb_shootdown() at smp_targeted_tlb_shootdown+0x2b7/frame 0xfffffe00c5303c20 pmap_invalidate_all() at pmap_invalidate_all+0x117/frame 0xfffffe00c5303c90 pmap_remove() at pmap_remove+0x5ae/frame 0xfffffe00c5303d10 _kmem_unback() at _kmem_unback+0x32/frame 0xfffffe00c5303d60 kmem_free() at kmem_free+0x2d/frame 0xfffffe00c5303d80 keg_free_slab() at keg_free_slab+0xdc/frame 0xfffffe00c5303dc0 keg_drain_domain() at keg_drain_domain+0x1c1/frame 0xfffffe00c5303e00 zone_reclaim() at zone_reclaim+0x1aa/frame 0xfffffe00c5303e50 arc_kmem_reap_soon() at arc_kmem_reap_soon+0x61/frame 0xfffffe00c5303e80 arc_reap_cb() at arc_reap_cb+0x9/frame 0xfffffe00c5303e90 zthr_procedure() at zthr_procedure+0xba/frame 0xfffffe00c5303ef0 fork_exit() at fork_exit+0x8a/frame 0xfffffe00c5303f30 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00c5303f30 --- trap 0x4dda280, rip = 0x100000000, rsp = 0, rbp = 0x1a99c090 --- KDB: enter: panic … fstat USER     CMD          PID   FD MOUNT      INUM MODE         SZ|DV R/W grahampe VirtualBoxVM  3085 root /             4 drwxr-xr-x 37  r … Context: lines 1285–1372.