On Sat, Jan 15, 2022 at 01:36:55PM -0500, Agnosto Dvonik wrote: > Synopsis: Unpredictable and unrecoverable freezing > Category: kernel panic > Environment: > System : OpenBSD 7.0 > Details : OpenBSD 7.0-current (GENERIC.MP) #256: Fri Jan 14 > 22:30:45 MST 2022 > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP > > Architecture: OpenBSD.amd64 > Machine : amd64 > Description: > On kernels #254, #255, and #256 there is freezing when certain programs > (mostly larger) programs are run, such as firefox-96.0 or mpv-0.34.0p1. What > confuses me about this most would be how top(1) reports normal CPU usage, > and df(1) reports normal disk usage in /tmp and in my mfs partition in > ~/.cache. > This freezing does not go away after a few minutes or even a few hourse, > forcing me to manually powerdown the machine. I have also noticed that the > fans in the system start to whirr a bit more when this happens than in > normal usage. > In some instances of this happening, a kernel panic message has been > produced: > > splassert: assertwaitok: want 0 have 4 > panic: kernel diagnostic assertion "p -> p_wchan == NULL" failed: file > "/usr/src/sys/kern/kern_sched.c", line 355
Can you try with 'sysctl kern.splassert=2' that should print a stack trace to show where this is coming from. > > When this message occurs, the kernel seems to have frozen as well, and > does not exit into ddb(4) as expected, and no crash results are sent to > /var/crash. > How-To-Repeat: > # I don't know exactly how to get the error, but usually running > firefox(1) or mpv(1) for anywhere around ~2-10 minutes can trigger it. > # However, a normal X session cannot do the same. > > dmesg: > OpenBSD 7.0-current (GENERIC.MP) #256: Fri Jan 14 22:30:45 MST 2022 > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP > real mem = 8458780672 (8066MB) > avail mem = 8185229312 (7806MB) > random: good seed from bootblocks > mpath0 at root > scsibus0 at mpath0: 256 targets > mainbus0 at root > bios0 at mainbus0: SMBIOS rev. 3.0 @ 0xba649000 (63 entries) > bios0: vendor LENOVO version "N24ET67W (1.42 )" date 11/17/2021 > bios0: LENOVO 20L5S1S000 > acpi0 at bios0: ACPI 5.0 > acpi0: sleep states S0 S3 S4 S5 > acpi0: tables DSDT FACP SSDT UEFI SSDT SSDT HPET APIC MCFG ECDT SSDT SSDT > SSDT BOOT BATB SSDT SSDT SSDT LPIT WSMT SSDT SSDT SSDT DBGP DBG2 MSDM DMAR > ASF! FPDT UEFI > acpi0: wakeup devices GLAN(S4) XHC_(S3) XDCI(S4) HDAS(S4) RP01(S4) PXSX(S4) > RP02(S4) PXSX(S4) RP03(S4) PXSX(S4) RP04(S4) PXSX(S4) RP05(S4) PXSX(S4) > RP06(S4) PXSX(S4) [...] > acpitimer0 at acpi0: 3579545 Hz, 24 bits > acpihpet0 at acpi0: 23999999 Hz > acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat > cpu0 at mainbus0: apid 0 (boot processor) > cpu0: Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz, 1296.98 MHz, 06-8e-0a > cpu0: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,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, 10 var ranges, 88 fixed ranges > cpu0: apic clock running at 24MHz > cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4.1.1.1, IBE > cpu1 at mainbus0: apid 2 (application processor) > cpu1: Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz, 1095.52 MHz, 06-8e-0a > cpu1: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN > cpu1: 256KB 64b/line 8-way L2 cache > cpu1: smt 0, core 1, package 0 > cpu2 at mainbus0: apid 4 (application processor) > cpu2: Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz, 921.54 MHz, 06-8e-0a > cpu2: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN > cpu2: 256KB 64b/line 8-way L2 cache > cpu2: smt 0, core 2, package 0 > cpu3 at mainbus0: apid 6 (application processor) > cpu3: Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz, 897.91 MHz, 06-8e-0a > cpu3: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN > cpu3: 256KB 64b/line 8-way L2 cache > cpu3: smt 0, core 3, package 0 > cpu4 at mainbus0: apid 1 (application processor) > cpu4: Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz, 897.91 MHz, 06-8e-0a > cpu4: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN > cpu4: 256KB 64b/line 8-way L2 cache > cpu4: smt 1, core 0, package 0 > cpu5 at mainbus0: apid 3 (application processor) > cpu5: Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz, 897.91 MHz, 06-8e-0a > cpu5: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN > cpu5: 256KB 64b/line 8-way L2 cache > cpu5: smt 1, core 1, package 0 > cpu6 at mainbus0: apid 5 (application processor) > cpu6: Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz, 897.91 MHz, 06-8e-0a > cpu6: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN > cpu6: 256KB 64b/line 8-way L2 cache > cpu6: smt 1, core 2, package 0 > cpu7 at mainbus0: apid 7 (application processor) > cpu7: Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz, 897.91 MHz, 06-8e-0a > cpu7: > FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT,SRBDS_CTRL,MD_CLEAR,TSXFA,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES,MELTDOWN > cpu7: 256KB 64b/line 8-way L2 cache > cpu7: smt 1, core 3, package 0 > ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 120 pins > acpimcfg0 at acpi0 > acpimcfg0: addr 0xf8000000, bus 0-63 > acpiec0 at acpi0 > acpiprt0 at acpi0: bus 0 (PCI0) > acpiprt1 at acpi0: bus 1 (RP01) > acpiprt2 at acpi0: bus -1 (RP02) > acpiprt3 at acpi0: bus -1 (RP03) > acpiprt4 at acpi0: bus -1 (RP04) > acpiprt5 at acpi0: bus -1 (RP05) > acpiprt6 at acpi0: bus -1 (RP06) > acpiprt7 at acpi0: bus 3 (RP07) > acpiprt8 at acpi0: bus -1 (RP08) > acpiprt9 at acpi0: bus 4 (RP09) > acpiprt10 at acpi0: bus -1 (RP10) > acpiprt11 at acpi0: bus 61 (RP11) > acpiprt12 at acpi0: bus -1 (RP12) > acpiprt13 at acpi0: bus -1 (RP13) > acpiprt14 at acpi0: bus -1 (RP14) > acpiprt15 at acpi0: bus -1 (RP15) > acpiprt16 at acpi0: bus -1 (RP16) > acpiprt17 at acpi0: bus -1 (RP17) > acpiprt18 at acpi0: bus -1 (RP18) > acpiprt19 at acpi0: bus -1 (RP19) > acpiprt20 at acpi0: bus -1 (RP20) > acpiprt21 at acpi0: bus -1 (RP21) > acpiprt22 at acpi0: bus -1 (RP22) > acpiprt23 at acpi0: bus -1 (RP23) > acpiprt24 at acpi0: bus -1 (RP24) > acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001 > acpithinkpad0 at acpi0: version 2.0 > acpiac0 at acpi0: AC unit online > acpibat0 at acpi0: BAT0 model "01AV421" serial 1463 type LiP oem "SMP" > acpibat1 at acpi0: BAT1 model "01AV424" serial 1896 type LiP oem "Celxpert" > "LEN0100" at acpi0 not configured > "INT3403" at acpi0 not configured > acpicmos0 at acpi0 > acpibtn0 at acpi0: SLPB > "PNP0C14" at acpi0 not configured > acpibtn1 at acpi0: LID_ > "PNP0C14" at acpi0 not configured > "PNP0C14" at acpi0 not configured > "PNP0C14" at acpi0 not configured > "INT3400" at acpi0 not configured > acpicpu0 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), > C1(1000@1 mwait.1), PSS > acpicpu1 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), > C1(1000@1 mwait.1), PSS > acpicpu2 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), > C1(1000@1 mwait.1), PSS > acpicpu3 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), > C1(1000@1 mwait.1), PSS > acpicpu4 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), > C1(1000@1 mwait.1), PSS > acpicpu5 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), > C1(1000@1 mwait.1), PSS > acpicpu6 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), > C1(1000@1 mwait.1), PSS > acpicpu7 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), > C1(1000@1 mwait.1), PSS > acpipwrres0 at acpi0: PUBS, resource for XHC_ > acpitz0 at acpi0: critical temperature is 128 degC > acpivideo0 at acpi0: GFX0 > acpivout0 at acpivideo0: DD1F > cpu0: using VERW MDS workaround (except on vmm entry) > cpu0: Enhanced SpeedStep 1296 MHz: speeds: 1801, 1800, 1700, 1600, 1500, > 1400, 1300, 1200, 1100, 1000, 900, 800, 700, 600, 500, 400 MHz > pci0 at mainbus0 bus 0 > pchb0 at pci0 dev 0 function 0 "Intel Core 8G Host" rev 0x08 > inteldrm0 at pci0 dev 2 function 0 "Intel UHD Graphics 620" rev 0x07 > drm0 at inteldrm0 > inteldrm0: msi, KABYLAKE, gen 9 > "Intel Core 6G Thermal" rev 0x08 at pci0 dev 4 function 0 not configured > "Intel Core GMM" rev 0x00 at pci0 dev 8 function 0 not configured > xhci0 at pci0 dev 20 function 0 "Intel 100 Series xHCI" rev 0x21: msi, xHCI > 1.0 > usb0 at xhci0: USB revision 3.0 > uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev > 3.00/1.00 addr 1 > pchtemp0 at pci0 dev 20 function 2 "Intel 100 Series Thermal" rev 0x21 > "Intel 100 Series MEI" rev 0x21 at pci0 dev 22 function 0 not configured > ppb0 at pci0 dev 28 function 0 "Intel 100 Series PCIE" rev 0xf1: msi > pci1 at ppb0 bus 1 > ppb1 at pci0 dev 28 function 6 "Intel 100 Series PCIE" rev 0xf1: msi > pci2 at ppb1 bus 3 > iwm0 at pci2 dev 0 function 0 "Intel Dual Band Wireless-AC 8265" rev 0x78, > msi > ppb2 at pci0 dev 29 function 0 "Intel 100 Series PCIE" rev 0xf1 > pci3 at ppb2 bus 4 > ppb3 at pci0 dev 29 function 2 "Intel 100 Series PCIE" rev 0xf1: msi > pci4 at ppb3 bus 61 > nvme0 at pci4 dev 0 function 0 "Intel NVMe" rev 0x03: msix, NVMe 1.3 > nvme0: INTEL SSDPEKKF512G8L, firmware L13P, serial PHHH93560284512H > scsibus1 at nvme0: 2 targets, initiator 0 > sd0 at scsibus1 targ 1 lun 0: <NVMe, INTEL SSDPEKKF51, L13P> > sd0: 488386MB, 512 bytes/sector, 1000215216 sectors > pcib0 at pci0 dev 31 function 0 "Intel 200 Series LPC" rev 0x21 > "Intel 100 Series PMC" rev 0x21 at pci0 dev 31 function 2 not configured > azalia0 at pci0 dev 31 function 3 "Intel 200 Series HD Audio" rev 0x21: msi > azalia0: codecs: Realtek ALC257, Intel/0x280b, using Realtek ALC257 > audio0 at azalia0 > ichiic0 at pci0 dev 31 function 4 "Intel 100 Series SMBus" rev 0x21: apic 2 > int 16 > iic0 at ichiic0 > em0 at pci0 dev 31 function 6 "Intel I219-V" rev 0x21: msi, address > f8:75:a4:6a:f9:a7 > isa0 at pcib0 > isadma0 at isa0 > pckbc0 at isa0 port 0x60/5 irq 1 irq 12 > pckbd0 at pckbc0 (kbd slot) > wskbd0 at pckbd0: console keyboard > pms0 at pckbc0 (aux slot) > wsmouse0 at pms0 mux 0 > wsmouse1 at pms0 mux 0 > pms0: Synaptics clickpad, firmware 8.16, 0x1e2b1 0x940300 0x33cc40 0xf016a3 > 0x12e800 > pcppi0 at isa0 port 0x61 > spkr0 at pcppi0 > vmm0 at mainbus0: VMX/EPT > efifb at mainbus0 not configured > uvideo0 at uhub0 port 8 configuration 1 interface 0 "Chicony Electronics > Co.,Ltd. Integrated Camera" rev 2.01/0.27 addr 2 > video0 at uvideo0 > vscsi0 at root > scsibus2 at vscsi0: 256 targets > softraid0 at root > scsibus3 at softraid0: 256 targets > softraid0: sd1 was not shutdown properly > sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> > sd1: 488385MB, 512 bytes/sector, 1000213631 sectors > root on sd1a (efcf01b1e2035cb1.a) swap on sd1b dump on sd1b > WARNING: / was not properly unmounted > drm:pid0:intel_ddi_sanitize_encoder_pll_mapping *NOTICE* [drm] > [ENCODER:102:DDI J/PHY h] is disabled/in DSI mode with an ungated DDI clock, > gate it > drm:pid0:intel_ddi_sanitize_encoder_pll_mapping *NOTICE* [drm] > [ENCODER:116:DDI J/PHY h] is disabled/in DSI mode with an ungated DDI clock, > gate it > inteldrm0: 1920x1080, 32bpp > wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0 > wsdisplay0: screen 1-5 added (std, vt100 emulation) > iwm0: hw rev 0x230, fw ver 36.ca7b901d.0, address 08:71:90:e7:3c:d6 > > usbdevs: > Controller /dev/usb0: > addr 01: 8086:0000 Intel, xHCI root hub > super speed, self powered, config 1, rev 1.00 > driver: uhub0 > addr 02: 04f2:b604 Chicony Electronics Co.,Ltd., Integrated Camera > high speed, power 500 mA, config 1, rev 0.27, iSerial 0001 > driver: uvideo0 > >
