On Wed, Jul 29, 2020 at 02:05:18PM +0200, Andre Stoebe wrote:
> >Synopsis: Panic on boot with Hyper-V since Jun 17 snapshot
> >Category: kernel
> >Environment:
> System : OpenBSD 6.7
> Details : OpenBSD 6.7-current (GENERIC.MP) #375: Sun Jul 26
> 11:26:37 MDT 2020
>
> dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
>
> Architecture: OpenBSD.amd64
> Machine : amd64
> >Description:
> Booting -current on Hyper-V with hvn(4) results in a panic after
> "starting network".
>
> This seems to only affect the multi-user boot; hvn(4) still
> works flawlessly on the ramdisk.
>
> Last working snapshot:
> OpenBSD 6.7-current (GENERIC.MP) #273: Mon Jun 15 19:13:12 MDT 2020
>
> First non-working snapshot:
> OpenBSD 6.7-current (GENERIC.MP) #278: Wed Jun 17 12:18:35 MDT 2020
>
> Below is the serial output including ddb trace and ps.
> >How-To-Repeat:
> Boot OpenBSD-current on Hyper-V with a hvn(4) network adapter.
> >Fix:
> Unknown. As a workaround, disabling hvn(4) via "boot -c" does
> not result in a panic.
more fallout of intr_barrier() now using the argument
Index: sys/dev/pv/if_hvn.c
===================================================================
RCS file: /cvs/src/sys/dev/pv/if_hvn.c,v
retrieving revision 1.41
diff -u -p -r1.41 if_hvn.c
--- sys/dev/pv/if_hvn.c 10 Jul 2020 13:26:40 -0000 1.41
+++ sys/dev/pv/if_hvn.c 29 Jul 2020 12:52:09 -0000
@@ -451,7 +451,7 @@ hvn_stop(struct hvn_softc *sc)
}
ifq_barrier(&ifp->if_snd);
- intr_barrier(sc->sc_chan);
+ sched_barrier(NULL);
ifq_clr_oactive(&ifp->if_snd);
}
>
> NOTE: random seed is being reused.
> booting hd0a:/bsd: 14390600+3171336+344096+0+872448
> [968918+128+1133640+857287]=0x14bde68
> entry point at 0xffffffff81001000
> [ using 2961000 bytes of bsd ELF symbol table ]
> Copyright (c) 1982, 1986, 1989, 1991, 1993
> The Regents of the University of California. All rights reserved.
> Copyright (c) 1995-2020 OpenBSD. All rights reserved. https://www.OpenBSD.org
>
> OpenBSD 6.7-current (GENERIC.MP) #278: Wed Jun 17 12:18:35 MDT 2020
> dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> real mem = 4278124544 (4079MB)
> avail mem = 4133519360 (3942MB)
> random: good seed from bootblocks
> mpath0 at root
> scsibus0 at mpath0: 256 targets
> mainbus0 at root
> bios0 at mainbus0: SMBIOS rev. 2.3 @ 0xf93d0 (338 entries)
> bios0: vendor American Megatrends Inc. version "090008" date 12/07/2018
> bios0: Microsoft Corporation Virtual Machine
> acpi0 at bios0: ACPI 2.0
> acpi0: sleep states S0 S5
> acpi0: tables DSDT FACP WAET SLIC OEM0 SRAT APIC OEMB
> acpi0: wakeup devices
> acpitimer0 at acpi0: 3579545 Hz, 32 bits
> acpihve0 at acpi0
> acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
> ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 11, 24 pins, remapped
> cpu0 at mainbus0: apid 0 (boot processor)
> cpu0: Intel(R) Xeon(R) CPU E3-1245 v5 @ 3.50GHz, 2770.10 MHz, 06-5e-03
> cpu0:
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SS,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,FSGSBASE,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
> cpu0: 256KB 64b/line 8-way L2 cache
> cpu0: smt 0, core 0, package 0
> mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
> cpu0: apic clock running at 166MHz
> cpu1 at mainbus0: apid 1 (application processor)
> cpu1: Intel(R) Xeon(R) CPU E3-1245 v5 @ 3.50GHz, 2910.06 MHz, 06-5e-03
> cpu1:
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SS,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,FSGSBASE,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
> cpu1: 256KB 64b/line 8-way L2 cache
> cpu1: smt 0, core 1, package 0
> cpu2 at mainbus0: apid 2 (application processor)
> cpu2: Intel(R) Xeon(R) CPU E3-1245 v5 @ 3.50GHz, 2910.09 MHz, 06-5e-03
> cpu2:
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SS,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,FSGSBASE,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
> cpu2: 256KB 64b/line 8-way L2 cache
> cpu2: smt 0, core 2, package 0
> cpu3 at mainbus0: apid 3 (application processor)
> cpu3: Intel(R) Xeon(R) CPU E3-1245 v5 @ 3.50GHz, 2910.11 MHz, 06-5e-03
> cpu3:
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SS,HTT,SSE3,PCLMUL,SSSE3,FMA3,CX16,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,FSGSBASE,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN
> cpu3: 256KB 64b/line 8-way L2 cache
> cpu3: smt 0, core 3, package 0
> acpiprt0 at acpi0: bus 0 (PCI0)
> acpicpu0 at acpi0: C1(@1 halt!)
> acpicpu1 at acpi0: C1(@1 halt!)
> acpicpu2 at acpi0: C1(@1 halt!)
> acpicpu3 at acpi0: C1(@1 halt!)
> acpipci0 at acpi0 PCI0
> extent `acpipci0 pcibus' (0x0 - 0xff), flags=0
> extent `pciio' (0x0 - 0xffffffff), flags=0
> 0x10000 - 0xffffffff
> extent `pcimem' (0x0 - 0xffffffffffffffff), flags=0
> 0x0 - 0xf7ffffff
> 0x40000000000 - 0xffffffffffffffff
> acpicmos0 at acpi0
> "VMBus" at acpi0 not configured
> "Hyper_V_Gen_Counter_V1" at acpi0 not configured
> cpu0: using VERW MDS workaround (except on vmm entry)
> pvbus0 at mainbus0: Hyper-V 10.0
> hyperv0 at pvbus0: protocol 4.0, features 0x2e7f
> hyperv0: heartbeat, kvp, shutdown, timesync
> hvs0 at hyperv0 channel 2: ide, protocol 6.2
> scsibus1 at hvs0: 2 targets
> sd0 at scsibus1 targ 0 lun 0: <Msft, Virtual Disk, 1.0>
> naa.600224802050cb43ae008c0f97857048
> sd0: 65536MB, 512 bytes/sector, 134217728 sectors, thin
> hvs1 at hyperv0 channel 15: scsi, protocol 6.2
> scsibus2 at hvs1: 2 targets
> hvn0 at hyperv0 channel 16: NVS 5.0 NDIS 6.30, address 00:15:5d:9a:72:2f
> pci0 at mainbus0 bus 0
> pchb0 at pci0 dev 0 function 0 "Intel 82443BX" rev 0x03
> pcib0 at pci0 dev 7 function 0 "Intel 82371AB PIIX4 ISA" rev 0x01
> pciide0 at pci0 dev 7 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel 0
> wired to compatibility, channel 1 wired to compatibility
> pciide0: channel 0 disabled (no drives)
> atapiscsi0 at pciide0 channel 1 drive 0
> scsibus3 at atapiscsi0: 2 targets
> cd0 at scsibus3 targ 0 lun 0: <Msft, Virtual CD/ROM, 1.0> removable
> cd0(pciide0:1:0): using PIO mode 4, DMA mode 2
> piixpm0 at pci0 dev 7 function 3 "Intel 82371AB Power" rev 0x02: SMBus
> disabled
> vga1 at pci0 dev 8 function 0 "Microsoft VGA" rev 0x00
> wsdisplay at vga1 not configured
> isa0 at pcib0
> isadma0 at isa0
> fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
> com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
> com0: console
> com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
> pckbc0 at isa0 port 0x60/5 irq 1 irq 12
> pckbd0 at pckbc0 (kbd slot)
> wskbd0 at pckbd0 mux 1
> pms0 at pckbc0 (aux slot)
> wsmouse0 at pms0 mux 0
> pcppi0 at isa0 port 0x61
> spkr0 at pcppi0
> vscsi0 at root
> scsibus4 at vscsi0: 256 targets
> softraid0 at root
> scsibus5 at softraid0: 256 targets
> root on sd0a (1d6b6b3c33ab37de.a) swap on sd0b dump on sd0b
> WARNING: / was not properly unmounted
> fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
> Automatic boot in progress: starting file system checks.
> /dev/sd0a (1d6b6b3c33ab37de.a): FREE BLK COUNT(S) WRONG IN SUPERBLK (SALVAGED)
> /dev/sd0a (1d6b6b3c33ab37de.a): SUMMARY INFORMATION BAD (SALVAGED)
> /dev/sd0a (1d6b6fd1 at fdc0 drive 1: density unknown
> b3c33ab37de.a): BLK(S) MISSING IN BIT MAPS (SALVAGED)
> /dev/sd0a (1d6b6b3c33ab37de.a): 16631 files, 246111 used, 268328 free (192
> frags, 33517 blocks, 0.0% fragmentation)
> /dev/sd0a (1d6b6b3c33ab37de.a): MARKING FILE SYSTEM CLEAN
> /dev/sd0k (1d6b6b3c33ab37de.k): 2 files, 2 used, 13167524 free (20 frags,
> 1645938 blocks, 0.0% fragmentation)
> /dev/sd0k (1d6b6b3c33ab37de.k): MARKING FILE SYSTEM CLEAN
> /dev/sd0d (1d6b6b3c33ab37de.d): INCORRECT BLOCK COUNT I=3 (4 should be 0)
> (CORRECTED)
> /dev/sd0d (1d6b6b3c33ab37de.d): UNREF FILE I=3 OWNER=root MODE=100600
> /dev/sd0d: SIZE=0 MTIME=Jul 29 10:20 2020 (CLEARED)
> /dev/sd0d (1d6b6b3c33ab37de.d): 6 files, 5 used, 2062690 free (42 frags,
> 257831 blocks, 0.0% fragmentation)
> /dev/sd0d (1d6b6b3c33ab37de.d): MARKING FILE SYSTEM CLEAN
> /dev/sd0f (1d6b6b3c33ab37de.f): 224680 files, 1157145 used, 389470 free
> (39678 frags, 43724 blocks, 2.6% fragmentation)
> /dev/sd0f (1d6b6b3c33ab37de.f): MARKING FILE SYSTEM CLEAN
> /dev/sd0g (1d6b6b3c33ab37de.g): 9160 files, 110467 used, 403972 free (7404
> frags, 49571 blocks, 1.4% fragmentation)
> /dev/sd0g (1d6b6b3c33ab37de.g): MARKING FILE SYSTEM CLEAN
> /dev/sd0h (1d6b6b3c33ab37de.h): 13178 files, 260424 used, 4393111 free (6287
> frags, 548353 blocks, 0.1% fragmentation)
> /dev/sd0h (1d6b6b3c33ab37de.h): MARKING FILE SYSTEM CLEAN
> /dev/sd0j (1d6b6b3c33ab37de.j): 3484 files, 186521 used, 2908358 free (582
> frags, 363472 blocks, 0.0% fragmentation)
> /dev/sd0j (1d6b6b3c33ab37de.j): MARKING FILE SYSTEM CLEAN
> /dev/sd0i (1d6b6b3c33ab37de.i): 138604 files, 620123 used, 410404 free (1612
> frags, 51099 blocks, 0.2% fragmentation)
> /dev/sd0i (1d6b6b3c33ab37de.i): MARKING FILE SYSTEM CLEAN
> /dev/sd0e (1d6b6b3c33ab37de.e): FREE BLK COUNT(S) WRONG IN SUPERBLK (SALVAGED)
> /dev/sd0e (1d6b6b3c33ab37de.e): SUMMARY INFORMATION BAD (SALVAGED)
> /dev/sd0e (1d6b6b3c33ab37de.e): BLK(S) MISSING IN BIT MAPS (SALVAGED)
> /dev/sd0e (1d6b6b3c33ab37de.e): 561 files, 6789 used, 3619194 free (274
> frags, 452365 blocks, 0.0% fragmentation)
> /dev/sd0e (1d6b6b3c33ab37de.e): MARKING FILE SYSTEM CLEAN
> kbd: keyboard mapping set to de
> pf enabled
> starting network
> kernel: protection fault trap, code=0
> Stopped at setrunqueue+0xa2: addl $0x1,0x288(%r13)
> ddb{0}> trace
> setrunqueue(4632e58d2632e1b7,ffff8000235e79c0,32) at setrunqueue+0xa2
> sched_barrier_task(ffff80002367a858) at sched_barrier_task+0x6c
> taskq_thread(ffffffff820e01e0) at taskq_thread+0x8d
> end trace frame: 0x0, count: -3
> ddb{0}> machine ddbcpu 1
> Stopped at x86_ipi_db+0x12: leave
> ddb{1}> trace
> x86_ipi_db(ffff800022415ff0) at x86_ipi_db+0x12
> x86_ipi_handler() at x86_ipi_handler+0x80
> Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
> acpicpu_idle() at acpicpu_idle+0x271
> sched_idle(ffff800022415ff0) at sched_idle+0x225
> end trace frame: 0x0, count: -5
> ddb{1}> machine ddbcpu 2
> Stopped at x86_ipi_db+0x12: leave
> ddb{2}> trace
> x86_ipi_db(ffff800022426ff0) at x86_ipi_db+0x12
> x86_ipi_handler() at x86_ipi_handler+0x80
> Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
> acpicpu_idle() at acpicpu_idle+0x271
> sched_idle(ffff800022426ff0) at sched_idle+0x225
> end trace frame: 0x0, count: -5
> ddb{2}> machine ddbcpu 3
> Stopped at x86_ipi_db+0x12: leave
> ddb{3}> trace
> x86_ipi_db(ffff80002242fff0) at x86_ipi_db+0x12
> x86_ipi_handler() at x86_ipi_handler+0x80
> Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
> acpicpu_idle() at acpicpu_idle+0x271
> sched_idle(ffff80002242fff0) at sched_idle+0x225
> end trace frame: 0x0, count: -5
> ddb{3}> ps
> PID TID PPID UID S FLAGS WAIT COMMAND
> 16940 381953 2194 0 3 0x3 sbar ifconfig
> 2194 467874 88209 0 3 0x10008b pause sh
> 27795 175339 15600 115 3 0x100092 kqread slaacd
> 1268 460749 15600 115 3 0x100092 kqread slaacd
> 15600 87558 1 0 3 0x100080 kqread slaacd
> 75508 331379 15064 0 3 0x100083 nanosleep sleep
> 15064 228406 1 0 3 0x100089 pause ksh
> 88209 267771 1 0 3 0x10008b pause sh
> 29800 381335 0 0 3 0x14200 bored smr
> 13503 94478 0 0 3 0x14200 pgzero zerothread
> 89041 215522 0 0 3 0x14200 aiodoned aiodoned
> 46332 915 0 0 3 0x14200 syncer update
> 20152 396910 0 0 3 0x14200 cleaner cleaner
> 54251 296627 0 0 3 0x14200 reaper reaper
> 66847 188480 0 0 3 0x14200 pgdaemon pagedaemon
> 78063 276360 0 0 3 0x14200 bored crynlk
> 25507 271821 0 0 3 0x14200 bored crypto
> 80421 84867 0 0 3 0x14200 bored hvs1
> 57199 382476 0 0 3 0x14200 bored hvs0
> 50781 12321 0 0 3 0x40014200 acpi0 acpi0
> *99819 420836 0 0 7 0x40014200 idle3
> 82224 107227 0 0 7 0x40014200 idle2
> 36175 478289 0 0 7 0x40014200 idle1
> 8587 296045 0 0 3 0x14200 bored softnet
> kernel: protection fault trap, code=0
> Faulted in DDB; continuing...
>
>
