On 15/04/21(Thu) 22:35, Jérôme FRGACIC wrote: > >Synopsis: kernel panic when invoking ddb from another tty than ttyC0 > >Category: kernel > >Environment: > System : OpenBSD 6.8 > Details : OpenBSD 6.8 (GENERIC) #97: Sun Oct 4 18:00:46 MDT 2020 > > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC > > Architecture: OpenBSD.amd64 > Machine : amd64 > >Description: > When I try to invoke ddb with Ctrl-Alt-Esc from another tty than ttyC0, > the > kernel panics. > You will find panic message, traceback and ps output below. > If needed, I still have the crash dump. > >How-To-Repeat: > Enable ddb.console. > Go to any tty except ttyC0. > Enter Crtl-Alt-Esc. > >Fix: > N/A > > > errors before panic message: > splassert: assertwaitok: want 0 have 9
Could you set "sysctl kern.splassert=2" in order to get a useful stack trace for this issue? This is probably where some attention is required. > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > splassert: assertwaitok: want 0 have 9 > > panic message: > panic: kernel diagnostic assertion "p->p_wchan == NULL" failed: file > "/usr/src/sys/kern/kern_sched.c", line 353 > > traceback: > Stopped at db_enter+0x10: popq %rbp > TID PID UID PRFLAGS PFLAGS CPU COMMAND > db_enter() at db_enter+0x10 > panic(ffffffff81ddb0f2) at panic+0x12a > __assert(ffffffff81e3fe94,ffffffff81dc952b,161,ffffffff81dc296e) at > __assert+0x2b > sched_chooseproc() at sched_chooseproc+0x101 > mi_switch() at mi_switch+0x109 > msleep(ffff8000001f7280,ffff8000001f7298,20,ffffffff81e06c00,0) at > msleep+0x101 > taskq_next_work(ffff8000001f7280,ffff800022e46858) at taskq_next_work+0x61 > taskq_thread(ffff8000001f7280) at taskq_thread+0x82 > end trace frame: 0x0, count: 7 > > ps output: > ddb> PID TID PPID UID S FLAGS WAIT COMMAND > 46716 222641 59719 0 3 0x1000b3 ttyin login_passwd > 62320 332948 67717 1000 3 0x1000b0 poll ssh-agent > 8898 218895 67717 1000 3 0x82 select tint2 > 63549 66422 67717 1000 3 0x82 nanosleep redshift > 90460 262322 67717 1000 3 0x82 poll xcompmgr > 67717 150947 41045 1000 3 0x100082 poll cwm > 41045 177573 94871 1000 3 0x10008a pause sh > 94871 276330 55185 0 3 0x100080 wait xenodm > 39144 499998 80037 0 3 0x100080 netio Xorg > 80037 386456 55185 35 3 0x92 poll Xorg > 80037 462408 55185 35 3 0x4000092 poll Xorg > 38954 305428 1 0 3 0x100083 ttyin getty > 75488 428761 1 0 3 0x100083 ttyin getty > 5109 349049 1 0 3 0x100083 ttyin getty > 60876 3318 1 0 3 0x100083 ttyin getty > 59719 521598 1 0 3 0x83 netio login > 55185 191659 1 0 3 0x88 pause xenodm > 26243 59952 1 0 3 0x100098 poll cron > 5560 28593 1 0 3 0x80 kqread apmd > 63659 502916 1 99 3 0x100090 poll sndiod > 23271 107324 1 110 3 0x100090 poll sndiod > 98469 32165 57416 95 3 0x100092 kqread smtpd > 21012 225120 57416 103 3 0x100092 kqread smtpd > 60831 405428 57416 95 3 0x100092 kqread smtpd > 75376 197549 57416 95 3 0x100092 kqread smtpd > 54403 119307 57416 95 3 0x100092 kqread smtpd > 13460 9150 57416 95 3 0x100092 kqread smtpd > 57416 468565 1 0 3 0x100080 kqread smtpd > 89850 30114 1 0 3 0x100080 poll ntpd > 7051 260526 81175 83 3 0x100092 poll ntpd > 81175 348924 1 83 3 0x100092 poll ntpd > 7581 421124 1 53 3 0x90 kqread unbound > 54721 150640 12052 74 3 0x100092 bpf pflogd > 12052 371337 1 0 3 0x80 netio pflogd > 65117 334444 20904 73 3 0x100090 kqread syslogd > 20904 387167 1 0 3 0x100082 netio syslogd > 20616 204781 14397 115 3 0x100092 kqread slaacd > 47806 135934 14397 115 3 0x100092 kqread slaacd > 14397 157357 1 0 3 0x100080 kqread slaacd > 50306 455059 0 0 3 0x14200 bored i915-userptr-acq > 23119 433304 0 0 3 0x14200 bored i915_flip > 79798 49595 0 0 3 0x14200 bored i915_modeset > 81535 116161 0 0 3 0x14200 bored i915-dp > 65323 57322 0 0 3 0x14200 bored i915 > 90264 143808 0 0 3 0x14200 bored smr > 6645 288713 0 0 3 0x14200 pgzero zerothread > 2859 403605 0 0 3 0x14200 aiodoned aiodoned > 82486 330431 0 0 3 0x14200 syncer update > 32653 328446 0 0 3 0x14200 cleaner cleaner > 53574 267786 0 0 3 0x14200 reaper reaper > 20504 227996 0 0 3 0x14200 pgdaemon pagedaemon > 11930 315405 0 0 3 0x14200 bored crynlk > 39309 492257 0 0 3 0x14200 bored crypto > 10326 510000 0 0 3 0x14200 mmctsk sdmmc0 > 14222 39717 0 0 3 0x14200 bored iwxns > 67636 385496 0 0 3 0x14200 usbtsk usbtask > 45740 486117 0 0 3 0x14200 usbatsk usbatsk > 54387 123202 0 0 3 0x14200 bored drmtskl > 84701 298491 0 0 3 0x14200 bored drmlwq > 58278 162282 0 0 3 0x14200 bored drmlwq > 62754 137612 0 0 3 0x14200 bored drmlwq > 8199 449641 0 0 3 0x14200 bored drmlwq > 49549 65109 0 0 3 0x14200 bored drmubwq > 79433 66166 0 0 3 0x14200 bored drmubwq > 52520 82509 0 0 3 0x14200 bored drmubwq > 23712 200288 0 0 3 0x14200 bored drmubwq > 98636 13523 0 0 3 0x14200 bored drmhpwq > 18095 449503 0 0 3 0x14200 bored drmhpwq > 29772 187522 0 0 3 0x14200 bored drmhpwq > 23830 53583 0 0 3 0x14200 bored drmhpwq > 25799 337351 0 0 3 0x14200 bored drmwq > 64472 77172 0 0 3 0x14200 bored drmwq > 96098 312017 0 0 3 0x14200 bored drmwq > *18081 268381 0 0 3 0x14200 bored drmwq > 68860 369856 0 0 3 0x40014200 acpi0 acpi0 > 69872 393429 0 0 3 0x14200 bored sensors > 66928 499473 0 0 3 0x14200 bored softnet > 89306 465307 0 0 3 0x14200 bored systqmp > 47370 222396 0 0 3 0x14200 bored systq > 62380 482781 0 0 3 0x40014200 bored softclock > 90358 27321 0 0 2 0x40014200 wfct idle0 > 1 315226 0 0 3 0x82 wait init > 0 0 -1 0 3 0x10200 scheduler swapper > > > dmesg: > OpenBSD 6.8 (GENERIC) #97: Sun Oct 4 18:00:46 MDT 2020 > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC > real mem = 8384339968 (7995MB) > avail mem = 8115294208 (7739MB) > random: good seed from bootblocks > mpath0 at root > scsibus0 at mpath0: 256 targets > mainbus0 at root > bios0 at mainbus0: SMBIOS rev. 3.2 @ 0x97265000 (56 entries) > bios0: vendor INSYDE Corp. version "1.07.05" date 10/24/2019 > bios0: Notebook NJ50_70CU > acpi0 at bios0: ACPI 5.1 > acpi0: sleep states S0 S3 S4 S5 > acpi0: tables DSDT FACP UEFI SSDT SSDT LPIT WSMT SSDT DBGP DBG2 SSDT SSDT > NHLT HPET APIC MCFG DMAR SSDT FPDT BGRT > acpi0: wakeup devices XHC_(S3) HDAS(S4) RP01(S3) PXSX(S4) RP02(S3) PXSX(S4) > RP03(S3) PXSX(S4) RP04(S3) PXSX(S4) RP05(S3) PXSX(S4) RP06(S3) PXSX(S4) > RP07(S3) 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) i3-10110U CPU @ 2.10GHz, 15446.74 MHz, 06-8e-0c > 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,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,XSAVEC,XGETBV1,XSAVES > 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 > cpu at mainbus0: not configured > cpu at mainbus0: not configured > cpu at mainbus0: not configured > ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 120 pins > acpimcfg0 at acpi0 > acpimcfg0: addr 0xe0000000, bus 0-255 > 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 -1 (RP07) > acpiprt8 at acpi0: bus -1 (RP08) > acpiprt9 at acpi0: bus 1 (RP09) > acpiprt10 at acpi0: bus 6 (RP10) > acpiprt11 at acpi0: bus -1 (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) > acpiec0 at acpi0 > acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001 > acpicmos0 at acpi0 > "SYNA1202" at acpi0 not configured > "ANX7411" at acpi0 not configured > "INT34BB" at acpi0 not configured > acpibtn0 at acpi0: PWRB > acpibtn1 at acpi0: SLPB > acpibtn2 at acpi0: LID0 > acpiac0 at acpi0: AC unit online > acpibat0 at acpi0: BAT0 not present > "PNP0C14" at acpi0 not configured > acpihid0 at acpi0: HIDD > "CLV0001" at acpi0 not configured > "CLV0002" at acpi0 not configured > "PNP0C14" at acpi0 not configured > "PNP0C14" at acpi0 not configured > acpipwrres0 at acpi0: V0PR > acpipwrres1 at acpi0: V1PR > acpipwrres2 at acpi0: V2PR > acpipwrres3 at acpi0: WRST > acpicpu0 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33), > C1(1000@1 mwait.1), PSS > acpitz0 at acpi0: critical temperature is 120 degC > acpipwrres4 at acpi0: PIN_ > acpivideo0 at acpi0: GFX0 > acpivout0 at acpivideo0: DD1F > cpu0: Enhanced SpeedStep 15446 MHz: speeds: 2501, 2500, 2400, 2300, 2100, > 2000, 1800, 1700, 1500, 1300, 1200, 1000, 800, 700, 600, 400 MHz > pci0 at mainbus0 bus 0 > pchb0 at pci0 dev 0 function 0 vendor "Intel", unknown product 0x9b71 rev > 0x0c > inteldrm0 at pci0 dev 2 function 0 vendor "Intel", unknown product 0x9b41 > rev 0x02 > drm0 at inteldrm0 > inteldrm0: msi, COFFEELAKE, gen 9 > vendor "Intel", unknown product 0x02f9 (class DASP subclass miscellaneous, > rev 0x00) at pci0 dev 18 function 0 not configured > xhci0 at pci0 dev 20 function 0 vendor "Intel", unknown product 0x02ed rev > 0x00: msi, xHCI 1.10 > 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 > vendor "Intel", unknown product 0x02ef (class memory subclass RAM, rev 0x00) > at pci0 dev 20 function 2 not configured > iwx0 at pci0 dev 20 function 3 "Intel Wi-Fi 6 AX201" rev 0x00, msix > dwiic0 at pci0 dev 21 function 0 vendor "Intel", unknown product 0x02e8 rev > 0x00: apic 2 int 16 > iic0 at dwiic0 > ihidev0 at iic0 addr 0x2c , can't establish interrupt (polling), vendor > 0x6cb product 0xcd65, SYNA1202 > ihidev0: 14 report ids > imt0 at ihidev0: touchpad, 5 contacts > wsmouse0 at imt0 mux 0 > ims0 at ihidev0 reportid 2: 2 buttons > wsmouse1 at ims0 mux 0 > hid at ihidev0 reportid 6 not configured > hid at ihidev0 reportid 7 not configured > hid at ihidev0 reportid 9 not configured > hid at ihidev0 reportid 10 not configured > hid at ihidev0 reportid 11 not configured > hid at ihidev0 reportid 12 not configured > hid at ihidev0 reportid 13 not configured > hid at ihidev0 reportid 14 not configured > dwiic1 at pci0 dev 21 function 1 vendor "Intel", unknown product 0x02e9 rev > 0x00: apic 2 int 17 > iic1 at dwiic1 > "ANX7411" at iic1 addr 0x42 not configured > vendor "Intel", unknown product 0x02e0 (class communications subclass > miscellaneous, rev 0x00) at pci0 dev 22 function 0 not configured > ahci0 at pci0 dev 23 function 0 vendor "Intel", unknown product 0x02d3 rev > 0x00: msi, AHCI 1.3.1 > ahci0: port 0: 6.0Gb/s > ahci0: port 1: 1.5Gb/s > ahci0: port 2: 6.0Gb/s > scsibus1 at ahci0: 32 targets > sd0 at scsibus1 targ 0 lun 0: <ATA, WDC WD5000LPCX-2, 01.0> > naa.50014ee65cfa28d2 > sd0: 476940MB, 512 bytes/sector, 976773168 sectors > cd0 at scsibus1 targ 1 lun 0: <HL-DT-ST, DVDRAM GUD0N, 1.00> removable > sd1 at scsibus1 targ 2 lun 0: <ATA, LDLC F6+M.2 240, S090> > t10.ATA_LDLC_F6+M.2_240_03242220F0164_ > sd1: 228936MB, 512 bytes/sector, 468862128 sectors, thin > ppb0 at pci0 dev 29 function 0 vendor "Intel", unknown product 0x02b0 rev > 0xf0 > pci1 at ppb0 bus 1 > rtsx0 at pci1 dev 0 function 0 "Realtek RTL8411B Card Reader" rev 0x01: msi > sdmmc0 at rtsx0: 4-bit, dma > re0 at pci1 dev 0 function 1 "Realtek 8168" rev 0x12: RTL8411B (0x5c80), > msi, address 80:fa:5b:7a:21:9f > rgephy0 at re0 phy 7: RTL8251 PHY, rev. 0 > ppb1 at pci0 dev 29 function 1 vendor "Intel", unknown product 0x02b1 rev > 0xf0 > pci2 at ppb1 bus 6 > pcib0 at pci0 dev 31 function 0 vendor "Intel", unknown product 0x0284 rev > 0x00 > azalia0 at pci0 dev 31 function 3 vendor "Intel", unknown product 0x02c8 rev > 0x00: msi > azalia0: codecs: Realtek/0x0293, Intel/0x280b, using Realtek/0x0293 > audio0 at azalia0 > vendor "Intel", unknown product 0x02a3 (class serial bus subclass SMBus, rev > 0x00) at pci0 dev 31 function 4 not configured > vendor "Intel", unknown product 0x02a4 (class serial bus unknown subclass > 0x80, rev 0x00) at pci0 dev 31 function 5 not configured > 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 > pcppi0 at isa0 port 0x61 > spkr0 at pcppi0 > vmm0 at mainbus0: VMX/EPT > efifb at mainbus0 not configured > uvideo0 at uhub0 port 1 configuration 1 interface 0 "Sonix Technology Co., > Ltd. BisonCam,NB Pro" rev 2.00/6.01 addr 2 > video0 at uvideo0 > uhidev0 at uhub0 port 5 configuration 1 interface 0 "Cherry USB keyboard" > rev 2.00/1.03 addr 3 > uhidev0: iclass 3/1 > ukbd0 at uhidev0: 8 variable keys, 6 key codes > wskbd1 at ukbd0 mux 1 > uhidev1 at uhub0 port 5 configuration 1 interface 1 "Cherry USB keyboard" > rev 2.00/1.03 addr 3 > uhidev1: iclass 3/0, 5 report ids > uhid0 at uhidev1 reportid 2: input=1, output=0, feature=0 > uhid1 at uhidev1 reportid 3: input=3, output=0, feature=0 > uhid2 at uhidev1 reportid 5: input=0, output=0, feature=5 > uhidev2 at uhub0 port 7 configuration 1 interface 0 "Logitech USB Optical > Mouse" rev 2.00/72.00 addr 4 > uhidev2: iclass 3/1 > ums0 at uhidev2: 3 buttons, Z dir > wsmouse2 at ums0 mux 0 > ugen0 at uhub0 port 10 "Intel product 0x0026" rev 2.01/0.02 addr 5 > vscsi0 at root > scsibus2 at vscsi0: 256 targets > softraid0 at root > scsibus3 at softraid0: 256 targets > root on sd1a (1109b61c9c14d27a.a) swap on sd1b dump on sd1b > WARNING: / was not properly unmounted > inteldrm0: 1920x1080, 32bpp > wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0 > wskbd1: connecting to wsdisplay0 > wsdisplay0: screen 1-5 added (std, vt100 emulation) > iwx0: hw rev 0x350, fw ver 48.1335886879.0, address 7c:b2:7d:dd:ad:56 > wsmouse2 detached > ums0 detached > uhidev2 detached > uhidev2 at uhub0 port 7 configuration 1 interface 0 "Logitech USB Optical > Mouse" rev 2.00/72.00 addr 4 > uhidev2: iclass 3/1 > ums0 at uhidev2: 3 buttons, Z dir > wsmouse2 at ums0 mux 0 > > 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: 5986:9102 Sonix Technology Co., Ltd., BisonCam,NB Pro > high speed, power 500 mA, config 1, rev 6.01 > driver: uvideo0 > addr 03: 046a:b090 Cherry, USB keyboard > low speed, power 100 mA, config 1, rev 1.03 > driver: uhidev0 > driver: uhidev1 > addr 04: 046d:c077 Logitech, USB Optical Mouse > low speed, power 100 mA, config 1, rev 72.00 > driver: uhidev2 > addr 05: 8087:0026 Intel, product 0x0026 > full speed, self powered, config 1, rev 0.02 > driver: ugen0 >
