This is current/amd64 on an APU1C (dmesg below). It runs off a microSD card (sd1 in a SD card adapter in the SD slot) and has a 60GB mSATA (sd0 in the mSATA slot ) for backups of others.
Filesystem Size Used Avail Capacity Mounted on /dev/sd1a 501M 106M 370M 23% / /dev/sd1d 989M 6.0K 940M 1% /tmp /dev/sd1e 249M 6.7M 229M 3% /var /dev/sd1f 989M 950K 939M 1% /var/log /dev/sd1g 1.5G 1.4M 1.4G 1% /var/www /dev/sd1h 1.9G 651M 1.2G 35% /usr /dev/sd1i 4.8G 193M 4.4G 5% /usr/local /dev/sd1l 4.8G 54.3M 4.5G 2% /home /dev/sd0a 55.8G 129M 52.9G 1% /backup The problem is the root filesystem is always unclean after a reboot. That is, after a warm reboot with 'shutdown -r' or 'reboot': WARNING: / was not properly unmounted Automatic boot in progress: starting file system checks. /dev/sd1a (47e56166cfb1e429.a): 1758 files, 54169 used, 202494 free (38 frags, 25307 blocks, 0.0% fragmentation) /dev/sd1a (47e56166cfb1e429.a): MARKING FILE SYSTEM CLEAN This never happens with a cold reboot (shutdown -h or halt). It also never happens with the mSATA disk. The shutdown (cold or warm) does report 'syncing disks ... done' and doesn't report any problems. How can I debug this? Is it something specific about microSD cards? In every case, the filesystem just got fsck'ed on boot and runs fine; but it seems unreliable booting an unclean / Jan OpenBSD 7.3-current (GENERIC.MP) #0: Sat Apr 29 23:58:22 CEST 2023 h...@stary.stare.cz:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 2098511872 (2001MB) avail mem = 2015338496 (1921MB) random: good seed from bootblocks mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.7 @ 0x7e16d820 (7 entries) bios0: vendor coreboot version "4.0" date 09/08/2014 bios0: PC Engines APU acpi0 at bios0: ACPI 4.0 acpi0: sleep states S0 S1 S3 S4 S5 acpi0: tables DSDT FACP SPCR HPET APIC HEST SSDT SSDT SSDT acpi0: wakeup devices AGPB(S4) HDMI(S4) PBR4(S4) PBR5(S4) PBR6(S4) PBR7(S4) PE20(S4) PE21(S4) PE22(S4) PE23(S4) PIBR(S4) UOH1(S3) UOH2(S3) UOH3(S3) UOH4(S3) UOH5(S3) [...] acpitimer0 at acpi0: 3579545 Hz, 32 bits acpihpet0 at acpi0: 14318180 Hz acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD G-T40E Processor, 1000.01 MHz, 14-02-00 cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,SSSE3,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,IBS,SKINIT,ITSC cpu0: 32KB 64b/line 8-way D-cache, 32KB 64b/line 2-way I-cache cpu0: 512KB 64b/line 16-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 200MHz cpu0: mwait min=64, max=64, IBE cpu1 at mainbus0: apid 1 (application processor) cpu1: AMD G-T40E Processor, 1000.02 MHz, 14-02-00 cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,SSSE3,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,IBS,SKINIT,ITSC cpu1: 32KB 64b/line 8-way D-cache, 32KB 64b/line 2-way I-cache cpu1: 512KB 64b/line 16-way L2 cache cpu1: smt 0, core 1, package 0 ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 21, 24 pins acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (AGPB) acpiprt2 at acpi0: bus -1 (HDMI) acpiprt3 at acpi0: bus 1 (PBR4) acpiprt4 at acpi0: bus 2 (PBR5) acpiprt5 at acpi0: bus 3 (PBR6) acpiprt6 at acpi0: bus -1 (PBR7) acpiprt7 at acpi0: bus 5 (PE20) acpiprt8 at acpi0: bus -1 (PE21) acpiprt9 at acpi0: bus -1 (PE22) acpiprt10 at acpi0: bus -1 (PE23) acpiprt11 at acpi0: bus 4 (PIBR) acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001 acpicmos0 at acpi0 acpibtn0 at acpi0: PWRB acpicpu0 at acpi0: C2(0@100 io@0x841), C1(@1 halt!), PSS acpicpu1 at acpi0: C2(0@100 io@0x841), C1(@1 halt!), PSS cpu0: 1000 MHz: speeds: 1000 800 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "AMD 14h Host" rev 0x00 ppb0 at pci0 dev 4 function 0 "AMD 14h PCIE" rev 0x00: msi pci1 at ppb0 bus 1 re0 at pci1 dev 0 function 0 "Realtek 8168" rev 0x06: RTL8168E/8111E (0x2c00), msi, address 00:0d:b9:3d:bb:fc rgephy0 at re0 phy 7: RTL8169S/8110S/8211 PHY, rev. 4 ppb1 at pci0 dev 5 function 0 "AMD 14h PCIE" rev 0x00: msi pci2 at ppb1 bus 2 re1 at pci2 dev 0 function 0 "Realtek 8168" rev 0x06: RTL8168E/8111E (0x2c00), msi, address 00:0d:b9:3d:bb:fd rgephy1 at re1 phy 7: RTL8169S/8110S/8211 PHY, rev. 4 ppb2 at pci0 dev 6 function 0 "AMD 14h PCIE" rev 0x00: msi pci3 at ppb2 bus 3 re2 at pci3 dev 0 function 0 "Realtek 8168" rev 0x06: RTL8168E/8111E (0x2c00), msi, address 00:0d:b9:3d:bb:fe rgephy2 at re2 phy 7: RTL8169S/8110S/8211 PHY, rev. 4 ahci0 at pci0 dev 17 function 0 "ATI SBx00 SATA" rev 0x40: apic 2 int 19, AHCI 1.2 ahci0: port 0: 6.0Gb/s scsibus1 at ahci0: 32 targets sd0 at scsibus1 targ 0 lun 0: <ATA, KINGSTON SMS200S, 605A> naa.50026b725a08fef7 sd0: 57241MB, 512 bytes/sector, 117231408 sectors, thin ohci0 at pci0 dev 18 function 0 "ATI SB700 USB" rev 0x00: apic 2 int 18, version 1.0, legacy support ehci0 at pci0 dev 18 function 2 "ATI SB700 USB2" rev 0x00: apic 2 int 17 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 configuration 1 interface 0 "ATI EHCI root hub" rev 2.00/1.00 addr 1 ohci1 at pci0 dev 19 function 0 "ATI SB700 USB" rev 0x00: apic 2 int 18, version 1.0, legacy support ehci1 at pci0 dev 19 function 2 "ATI SB700 USB2" rev 0x00: apic 2 int 17 usb1 at ehci1: USB revision 2.0 uhub1 at usb1 configuration 1 interface 0 "ATI EHCI root hub" rev 2.00/1.00 addr 1 piixpm0 at pci0 dev 20 function 0 "ATI SBx00 SMBus" rev 0x42: SMI iic0 at piixpm0 pcib0 at pci0 dev 20 function 3 "ATI SB700 ISA" rev 0x40 ppb3 at pci0 dev 20 function 4 "ATI SB600 PCI" rev 0x40 pci4 at ppb3 bus 4 ohci2 at pci0 dev 20 function 5 "ATI SB700 USB" rev 0x00: apic 2 int 18, version 1.0, legacy support ppb4 at pci0 dev 21 function 0 "ATI SB800 PCIE" rev 0x00 pci5 at ppb4 bus 5 ohci3 at pci0 dev 22 function 0 "ATI SB700 USB" rev 0x00: apic 2 int 18, version 1.0, legacy support ehci2 at pci0 dev 22 function 2 "ATI SB700 USB2" rev 0x00: apic 2 int 17 usb2 at ehci2: USB revision 2.0 uhub2 at usb2 configuration 1 interface 0 "ATI EHCI root hub" rev 2.00/1.00 addr 1 pchb1 at pci0 dev 24 function 0 "AMD 14h Link Cfg" rev 0x43 pchb2 at pci0 dev 24 function 1 "AMD 14h Address Map" rev 0x00 pchb3 at pci0 dev 24 function 2 "AMD 14h DRAM Cfg" rev 0x00 km0 at pci0 dev 24 function 3 "AMD 14h Misc Cfg" rev 0x00 pchb4 at pci0 dev 24 function 4 "AMD 14h CPU Power" rev 0x00 pchb5 at pci0 dev 24 function 5 "AMD 14h Reserved" rev 0x00 pchb6 at pci0 dev 24 function 6 "AMD 14h NB Power" rev 0x00 pchb7 at pci0 dev 24 function 7 "AMD 14h Reserved" rev 0x00 usb3 at ohci0: USB revision 1.0 uhub3 at usb3 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb4 at ohci1: USB revision 1.0 uhub4 at usb4 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00 addr 1 isa0 at pcib0 isadma0 at isa0 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 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 wbsio0 at isa0 port 0x2e/2: NCT5104D rev 0x52 usb5 at ohci2: USB revision 1.0 uhub5 at usb5 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb6 at ohci3: USB revision 1.0 uhub6 at usb6 configuration 1 interface 0 "ATI OHCI root hub" rev 1.00/1.00 addr 1 vmm0 at mainbus0: SVM/RVI umass0 at uhub2 port 1 configuration 1 interface 0 "Generic Flash Card Reader/Writer" rev 2.01/1.00 addr 2 umass0: using SCSI over Bulk-Only scsibus2 at umass0: 2 targets, initiator 0 sd1 at scsibus2 targ 1 lun 0: <Multiple, Card Reader, 1.00> removable serial.058f6366058F63666485 sd1: 29508MB, 512 bytes/sector, 60432384 sectors vscsi0 at root scsibus3 at vscsi0: 256 targets softraid0 at root scsibus4 at softraid0: 256 targets root on sd1a (47e56166cfb1e429.a) swap on sd1b dump on sd1b WARNING: / was not properly unmounted