Date: Thu, 20 Dec 2018 10:33:20 -0700 From: Rebecca Cran <rebecca@bluestop.org> To: "freebsd-current@FreeBSD.org" <freebsd-current@freebsd.org> Subject: Panic in getblkx() booting from disc1.iso in Qemu VM Message-ID: <4628942.YNO7O01DYZ@photon.int.bluestop.org>
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I know booting from the cd/dvd iso worked fairly recently, but today booting a new build of -CURRENT in a Qemu VM resulted in a panic: FreeBSD 13.0-CURRENT 19a6ceb89db(HEAD) GENERIC amd64 FreeBSD clang version 7.0.1 (tags/RELEASE_701/final 349250) (based on LLVM 7.0.1) WARNING: WITNESS option enabled, expect reduced performance. VT(efifb): resolution 800x600 CPU: QEMU Virtual CPU version 2.5+ (2994.86-MHz K8-class CPU) Origin="AuthenticAMD" Id=0x663 Family=0x6 Model=0x6 Stepping=3 Features=0x783fbfd<FPU,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE,SSE2> Features2=0x80002001<SSE3,CX16,HV> AMD Features=0x20100800<SYSCALL,NX,LM> AMD Features2=0x5<LAHF,SVM> SVM: NAsids=16 Hypervisor: Origin = "TCGTCGTCGTCG" real memory = 8589934592 (8192 MB) avail memory = 8227643392 (7846 MB) ... WARNING: WITNESS option enabled, expect reduced performance. Trying to mount root from cd9660:/dev/iso9660/13_0_CURRENT_AMD64_DVD [ro]... panic: bsize == 0, check bo->bo_bsize cpuid = 0 time = 2 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0041189270 vpanic() at vpanic+0x1b4/frame 0xfffffe00411892d0 panic() at panic+0x43/frame 0xfffffe0041189330 getblkx() at getblkx+0x807/frame 0xfffffe00411893f0 breadn_flags() at breadn_flags+0x3d/frame 0xfffffe0041189460 cd9660_blkatoff() at cd9660_blkatoff+0x53/frame 0xfffffe00411894d0 cd9660_vget_internal() at cd9660_vget_internal+0x26b/frame 0xfffffe0041189550 vfs_domount() at vfs_domount+0x7d3/frame 0xfffffe0041189770 vfs_donmount() at vfs_donmount+0x7b9/frame 0xfffffe0041189810 kernel_mount() at kernel_mount+0x58/frame 0xfffffe0041189860 parse_mount() at parse_mount+0x469/frame 0xfffffe00411899a0 vfs_mountroot() at vfs_mountroot+0x67f/frame 0xfffffe0041189b10 start_init() at start_init+0x28/frame 0xfffffe0041189bb0 fork_exit() at fork_exit+0x84/frame 0xfffffe0041189bf0 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0041189bf0 --- trap 0, rip = 0, rsp = 0, rbp = 0 --- KDB: enter: panic [ thread pid 1 tid 100002 ] Stopped at kdb_enter+0x3b: movq $0,kdb_why db> -- Rebecca
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