i386 11.0_BETA system crash

[Ramiro Aceves <ea1abz%gmail.com@localhost>]

Hi

packardbell_netbsd# uname -a
NetBSD packardbell_netbsd 11.0_BETA NetBSD 11.0_BETA (GENERIC) #0: Tue 
Oct 28 15:00:36 UTC 2025 
mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/i386/compile/GENERIC i386

I was under ICEWM desktop environment session while booting a Qemu 
FreeDOS virtual machine (no NVMM acceleration). Xorg froze and system 
rebooted itself.

Now I am playing with FreeDOS normally. Seems to work, slow of course 
but works.

Crash was recorded in /var/crash

packardbell_netbsd# ls -lh
total 136M
-rw-------  1 root  wheel    2B Nov 15 11:57 bounds
-rw-------  1 root  wheel    5B Dec 16  2024 minfree
-rw-------  1 root  wheel  1.9M Nov 15 11:58 netbsd.0
-rw-------  1 root  wheel  134M Nov 15 11:57 netbsd.0.core
packardbell_netbsd#

packardbell_netbsd# dmesg -M netbsd.0.core -N netbsd.0
[     1.000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 
2003,
[     1.000000]     2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
2012, 2013,
[     1.000000]     2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 
2022, 2023,
[     1.000000]     2024, 2025
[     1.000000]     The NetBSD Foundation, Inc.  All rights reserved.
[     1.000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
[     1.000000]     The Regents of the University of California. All 
rights reserved.

[     1.000000] NetBSD 11.0_BETA (GENERIC) #0: Tue Oct 28 15:00:36 UTC 2025
[     1.000000] 
 mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/i386/compile/GENERIC
[     1.000000] total memory = 1023 MB
[     1.000000] avail memory = 979 MB
[     1.000000] timecounter: Timecounters tick every 10.000 msec
[     1.000000] Kernelized RAIDframe activated
[     1.000000] timecounter: Timecounter "i8254" frequency 1193182 Hz 
quality 100
[     1.000004] mainbus0 (root)
[     1.000004] ACPI: RSDP 0x00000000000F77D0 000014 (v00 ACPIAM)
[     1.000004] ACPI: RSDT 0x000000003FFD0000 000030 (v01 A M I OEMRSDT  
10000407 MSFT 00000097)
[     1.000004] ACPI: FACP 0x000000003FFD0200 000081 (v02 A M I OEMFACP  
10000407 MSFT 00000097)
[     1.000004] ACPI: DSDT 0x000000003FFD03F0 003CF1 (v01 755SN 755SN106 
00000106 INTL 02002026)
[     1.000004] ACPI: FACS 0x000000003FFDF000 000040
[     1.000004] ACPI: APIC 0x000000003FFD0390 00005C (v01 A M I OEMAPIC  
10000407 MSFT 00000097)
[     1.000004] ACPI: OEMB 0x000000003FFDF040 000040 (v01 A M I AMI_OEM  
10000407 MSFT 00000097)
[     1.000004] ACPI: 1 ACPI AML tables successfully acquired and loaded
[     1.000004] ioapic0 at mainbus0 apid 2: pa 0xfec00000, version 0x2, 
24 pins
[     1.000004] cpu0 at mainbus0 apid 0
[     1.000004] cpu0: Use lfence to serialize rdtsc
[     1.000004] cpu0: Mobile Intel(R) Pentium(R) 4 CPU 3.20GHz, id 0xf41
[     1.000004] cpu0: node 0, package 0, core 0, smt 0
[     1.000004] cpu1 at mainbus0 apid 1
[     1.000004] cpu1: Mobile Intel(R) Pentium(R) 4 CPU 3.20GHz, id 0xf41
[     1.000004] cpu1: node 0, package 0, core 0, smt 1
[     1.000004] acpi0 at mainbus0: Intel ACPICA 20241212
[     1.000004] acpi0: X/RSDT: OemId <A M I ,OEMRSDT ,10000407>, AslId 
<MSFT,00000097>
[     1.000004] acpi0: SCI interrupting at int 9
[     1.000004] acpi0: fixed power button present
[     1.000004] timecounter: Timecounter "ACPI-Safe" frequency 3579545 
Hz quality 900
[     1.008710] acpiec0 at acpi0 (EC0, PNP0C09): io 0x62,0x66
[     1.008710] attimer1 at acpi0 (TMR, PNP0100): io 0x40-0x43 irq 0
[     1.008710] pckbc1 at acpi0 (PS2K, PNP0303) (kbd port): io 0x60,0x64 
irq 1
[     1.008710] pcppi1 at acpi0 (SPKR, PNP0800): io 0x61
[     1.008710] midi0 at pcppi1: PC speaker
[     1.008710] sysbeep0 at pcppi1
[     1.008710] COPR (PNP0C04) at acpi0 not configured
[     1.008710] LPTE (PNP0400) at acpi0 not configured
[     1.008710] pckbc2 at acpi0 (PS2M, SYN0801) (aux port): irq 12
[     1.008710] acpilid0 at acpi0 (LID, PNP0C0D): ACPI Lid Switch
[     1.008710] acpibat0 at acpi0 (BAT0, PNP0C0A-0): ACPI Battery
[     1.008710] acpiacad0 at acpi0 (AC0, ACPI0003): ACPI AC Adapter
[     1.008710] acpivga0 at acpi0 (VGA): ACPI Display Adapter
[     1.008710] acpiout0 at acpivga0 (CRT, 0x0100): ACPI Display Output 
Device
[     1.008710] acpiout1 at acpivga0 (LCD, 0x0110): ACPI Display Output 
Device
[     1.008710] acpiout1: autoconfiguration error: failed to test _BQC quirk
[     1.008710] acpiout1: brightness levels: [20,40,50,60,80,100]
[     1.008710] acpiout2 at acpivga0 (TV, 0x0200): ACPI Display Output 
Device
[     1.008710] acpivga0: connected output devices:
[     1.008710] acpivga0:   0x0100 (acpiout0): Ext. Monitor, head 0, 
bios detect
[     1.008710] acpivga0:   0x0110 (acpiout1): LCD Panel, head 0, bios 
detect
[     1.008710] acpivga0:   0x0200 (acpiout2): TV, head 0
[     1.008710] RMEM (PNP0C01) at acpi0 not configured
[     1.008710] acpibut0 at acpi0 (SLPB, PNP0C0E): ACPI Sleep Button
[     1.008710] acpibut1 at acpi0 (PWRB, PNP0C0C-170): ACPI Power Button
[     1.008710] acpitz0 at acpi0 (THRM)
[     1.008710] acpitz0: levels: critical 85.0 C, passive cooling
[     1.008710] apm0 at acpi0: Power Management spec V1.2
[     1.008710] pckbd0 at pckbc1 (kbd slot)
[     1.008710] pckbc1: using irq 1 for kbd slot
[     1.008710] wskbd0 at pckbd0: console keyboard
[     1.008710] pms0 at pckbc1 (aux slot)
[     1.008710] pms0: Synaptics touchpad version 5.9
[     1.008710] pms0: Palm detect, Vertical scroll, Multi-finger
[     1.008710] pckbc1: using irq 12 for aux slot
[     1.008710] wsmouse0 at pms0 mux 0
[     1.008710] attimer1: attached to pcppi1
[     1.008710] pci0 at mainbus0 bus 0: configuration mode 1
[     1.008710] pci0: i/o space, memory space enabled, rd/line, rd/mult, 
wr/inv ok
[     1.008710] pchb0 at pci0 dev 0 function 0: Silicon Integrated 
System 648 Host Bridge (rev. 0x11)
[     1.008710] agp0 at pchb0: aperture at 0xe0000000, size 0x8000000
[     1.008710] ppb0 at pci0 dev 1 function 0: Silicon Integrated System 
product 0003 (rev. 0x00)
[     1.008710] pci1 at ppb0 bus 1
[     1.008710] pci1: i/o space, memory space enabled
[     1.008710] nouveau0 at pci1 dev 0 function 0: NVIDIA product 032d 
(rev. 0xa1)
[     1.008710] pcib0 at pci0 dev 2 function 0: Silicon Integrated 
System 85C503 or 5597/5598 ISA Bridge (rev. 0x25)
[     1.008710] siside0 at pci0 dev 2 function 5
[     1.008710] siside0: Silicon Integrated Systems 96X UDMA6 648 IDE 
controller (rev. 0x00)
[     1.008710] siside0: bus-master DMA support present
[     1.008710] siside0: primary channel wired to compatibility mode
[     1.008710] siside0: primary channel interrupting at ioapic0 pin 14
[     1.008710] atabus0 at siside0 channel 0
[     1.008710] siside0: secondary channel wired to compatibility mode
[     1.008710] siside0: secondary channel interrupting at ioapic0 pin 15
[     1.008710] atabus1 at siside0 channel 1
[     1.008710] Silicon Integrated System 7013 Modem (modem 
communications, revision 0xa0) at pci0 dev 2 function 6 not configured
[     1.008710] auich0 at pci0 dev 2 function 7: SiS 7012 AC-97 Audio
[     1.008710] auich0: interrupting at ioapic0 pin 18
[     1.008710] auich0: ac97: Avance Logic ALC655 codec; no 3D stereo
[     1.008710] auich0: ac97: ext id 0x9c4<AC97_23,LDAC,SDAC,CDAC,SPDIF>
[     1.008710] ohci0 at pci0 dev 3 function 0: Silicon Integrated 
System 5597/5598 USB Host Controller (rev. 0x0f)
[     1.008710] ohci0: interrupting at ioapic0 pin 20
[     1.008710] ohci0: OHCI version 1.0, legacy support
[     1.008710] ohci0: autoconfiguration error: SMM does not respond, 
resetting
[     1.008710] usb0 at ohci0: USB revision 1.0
[     1.008710] ohci1 at pci0 dev 3 function 1: Silicon Integrated 
System 5597/5598 USB Host Controller (rev. 0x0f)
[     1.008710] ohci1: interrupting at ioapic0 pin 21
[     1.008710] ohci1: OHCI version 1.0, legacy support
[     1.008710] usb1 at ohci1: USB revision 1.0
[     1.008710] ehci0 at pci0 dev 3 function 3: Silicon Integrated 
System 7002 USB 2.0 Host Controller (rev. 0x00)
[     1.008710] ehci0: 32-bit DMA
[     1.008710] ehci0: interrupting at ioapic0 pin 23
[     1.008710] ehci0: EHCI version 1.0
[     1.008710] ehci0: 2 companion controllers, 3 ports each: ohci0 ohci1
[     1.008710] ehci0: Using DMA subregion for control data structures
[     1.008710] usb2 at ehci0: USB revision 2.0
[     1.008710] sip0 at pci0 dev 4 function 0: SiS 900 10/100 Ethernet, 
rev 0x91
[     1.008710] sip0: interrupting at ioapic0 pin 19
[     1.008710] sip0: Ethernet address 00:03:0d:1a:a7:cf
[     1.008710] rlphy0 at sip0 phy 1: RTL8201L 10/100 media interface, 
rev. 1
[     1.008710] rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
[     1.008710] cbb0 at pci0 dev 8 function 0: Texas Instruments PCI1410 
PCI-CardBus Bridge (rev. 0x02)
[     1.008710] fwohci0 at pci0 dev 9 function 0: Texas Instruments 
TSB43AA22/A IEEE 1394 Host Controller (rev. 0x00)
[     1.008710] fwohci0: interrupting at ioapic0 pin 18
[     1.008710] fwohci0: OHCI version 1.10 (ROM=1)
[     1.008710] fwohci0: No. of Isochronous channels is 4.
[     1.008710] fwohci0: EUI64 00:03:0d:00:75:5f:9f:50
[     1.008710] fwohci0: Phy 1394a available S400, 2 ports.
[     1.008710] fwohci0: Link S400, max_rec 2048 bytes.
[     1.008710] ieee1394if0 at fwohci0: IEEE1394 bus
[     1.008710] fwip0 at ieee1394if0: IP over IEEE1394
[     1.008710] fwohci0: Initiate bus reset
[     1.008710] fwohci0: Clear PME# now
[     1.008710] isa0 at pcib0
[     1.008710] lpt0 at isa0 port 0x378-0x37b irq 7
[     1.008710] cbb0: cacheline 0x0 lattimer 0x10
[     1.008710] cbb0: bhlc 0x21000
[     1.008710] cbb0: autoconfiguration error: secondary bus number 
uninitialized; try PCI_BUS_FIXUP
[     1.008710] cbb0: interrupting at ioapic0 pin 17
[     1.008710] cardslot0 at cbb0
[     1.008710] pcmcia0 at cardslot0
[     1.008710] acpicpu0 at cpu0: ACPI CPU
[     1.008710] acpicpu0: C1: HLT, lat   0 us, pow     0 mW
[     1.008710] acpicpu0: T0: I/O, lat   1 us, pow     0 mW, 100 %
[     1.008710] acpicpu0: T1: I/O, lat   1 us, pow     0 mW,  88 %
[     1.008710] acpicpu0: T2: I/O, lat   1 us, pow     0 mW,  76 %
[     1.008710] acpicpu0: T3: I/O, lat   1 us, pow     0 mW,  64 %
[     1.008710] acpicpu0: T4: I/O, lat   1 us, pow     0 mW,  52 %
[     1.008710] acpicpu0: T5: I/O, lat   1 us, pow     0 mW,  40 %
[     1.008710] acpicpu0: T6: I/O, lat   1 us, pow     0 mW,  28 %
[     1.008710] acpicpu0: T7: I/O, lat   1 us, pow     0 mW,  16 %
[     1.008710] acpicpu1 at cpu1: ACPI CPU
[     1.008710] fwohci0: BUS reset
[     1.008710] fwohci0: node_id=0xc000ffc0, gen=1, CYCLEMASTER mode
[     1.008710] ieee1394if0: 1 nodes, maxhop <= 0 cable IRM irm(0) (me)
[     1.008710] ieee1394if0: bus manager 0
[     1.008710] timecounter: Timecounter "clockinterrupt" frequency 100 
Hz quality 0
[     1.008710] audio0 at auich0: playback, capture, full duplex, 
independent
[     1.008710] audio0: slinear_le:16 2ch 48000Hz, blk 1920 bytes (10ms) 
for playback
[     1.008710] audio0: slinear_le:16 2ch 48000Hz, blk 1920 bytes (10ms) 
for recording
[     1.435662] IPsec: Initialized Security Association Processing.
[     1.445674] acpiacad0: AC adapter offline.
[     1.445674] uhub0 at usb0: NetBSD (0x0000) OHCI root hub (0x0000), 
class 9/0, rev 1.00/1.00, addr 1
[     1.445674] uhub0: 3 ports with 3 removable, self powered
[     1.445674] uhub1 at usb2: NetBSD (0x0000) EHCI root hub (0x0000), 
class 9/0, rev 2.00/1.00, addr 1
[     1.445674] uhub1: 6 ports with 6 removable, self powered
[     1.445674] uhub2 at usb1: NetBSD (0x0000) OHCI root hub (0x0000), 
class 9/0, rev 1.00/1.00, addr 1
[     1.445674] uhub2: 3 ports with 3 removable, self powered
[     1.465698] acpibat0: OEM LiON rechargeable battery
[     1.465698] acpibat0: granularity: low->warn 0.120 Wh, warn->full 
0.008 Wh
[     4.539993] wd0 at atabus0 drive 0
[     4.539993] wd0: <ST9100823A>
[     4.539993] wd0: drive supports 16-sector PIO transfers, LBA48 
addressing
[     4.539993] wd0: 95396 MB, 193821 cyl, 16 head, 63 sec, 512 
bytes/sect x 195371568 sectors
[     4.640133] wd0: 32-bit data port
[     4.640133] wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA 
mode 5 (Ultra/100)
[     4.640133] wd0(siside0:0:0): using PIO mode 4, Ultra-DMA mode 2 
(Ultra/33) (using DMA)
[     4.640133] atapibus0 at atabus1: 2 targets
[     4.650148] cd0 at atapibus0 drive 0: <TSSTcorpCD/DVDW TS-L532A, 
Y499600350, TS30> cdrom removable
[     4.670174] cd0: 32-bit data port
[     4.670174] cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA 
mode 2 (Ultra/33)
[     4.670174] cd0(siside0:1:0): using PIO mode 4, Ultra-DMA mode 2 
(Ultra/33) (using DMA)
[     4.670174] swwdog0: software watchdog initialized
[     4.710230] WARNING: 3 errors while detecting hardware; check system 
log.
[     4.710230] boot device: wd0
[     4.710230] root on wd0a dumps on wd0b
[     4.750286] root file system type: ffs
[     4.750286] kern.module.path=/stand/i386/11.0/modules
[     4.750286] nouveau0: NVIDIA NV34 (034d00b1)
[     4.770315] nouveau0: bios: version 04.34.20.85.00
[     4.770315] nouveau0: interrupting at ioapic0 pin 16 (nouveau0)
[     4.770315] nouveau0: notice: tmr: unknown input clock freq
[     4.770315] nouveau0: fb: 128 MiB DDR1
[     4.770315] Zone  kernel: Available graphics memory: 268590 KiB
[     4.780332] nouveau0: DRM: VRAM: 127 MiB
[     4.780332] nouveau0: DRM: GART: 128 MiB
[     4.780332] nouveau0: DRM: BMP version 5.41
[     4.780332] nouveau0: DRM: DCB version 2.2
[     4.780332] nouveau0: DRM: DCB outp 00: 01000100 000088b8
[     4.780332] nouveau0: DRM: DCB outp 01: 030102f3 00000005
[     4.780332] nouveau0: DRM: DCB outp 02: 02020321 00000703
[     4.780332] nouveau0: DRM: Loading NV17 power sequencing microcode
[     4.780332] nouveau0: DRM: BIOS FP mode: 1024x768 (65000kHz pixel clock)
[     4.780332] nouveau0: DRM: MM: using M2MF for buffer copies
[     4.780332] nouveau0: DRM: Saving VGA fonts
[     4.780332] nouveau0: autoconfiguration error: error: DRM: Failed to 
map VRAM, cannot save/restore VGA fonts.
[     4.780332] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[     4.780332] [drm] Driver supports precise vblank timestamp query.
[     4.780332] nouveau0: DRM: Calling LVDS script 1:
[     4.780332] nouveau0: DRM: Calling LVDS script 6:
[     4.780332] nouveau0: DRM: 0xE068: Parsing digital output script table
[     5.281027] nouveau0: DRM: Setting dpms mode 3 on TV encoder (output 2)
[     5.351130] nouveaufb0 at nouveau0
[     5.351130] [drm] Initialized nouveau 1.3.1 20120801 for nouveau0 on 
minor 0
[     5.351130] nouveaufb0: framebuffer at 0xc0009000, size 1024x768, 
depth 32, stride 4096
[     5.371154] nouveau0: DRM: Calling LVDS script 2:
[     5.371154] nouveau0: DRM: 0xE148: Parsing digital output script table
[     5.411209] nouveau0: DRM: Calling LVDS script 5:
[     5.411209] nouveau0: DRM: 0xE051: Parsing digital output script table
[     5.661561] wsdisplay0 at nouveaufb0 kbdmux 1: console (default, 
vt100 emulation), using wskbd0
[     5.681589] wsmux1: connecting to wsdisplay0
[    21.043045] wsdisplay0: screen 1 added (default, vt100 emulation)
[    21.053064] wsdisplay0: screen 2 added (default, vt100 emulation)
[    21.053064] wsdisplay0: screen 3 added (default, vt100 emulation)
[    21.063085] wsdisplay0: screen 4 added (default, vt100 emulation)
[  1488.518248] panic: kernel diagnostic assertion "ret == -ERESTARTSYS 
|| ret == MAX_SCHEDULE_TIMEOUT" failed: file 
"/usr/src/sys/external/bsd/drm2/linux/linux_dma_fence.c", line 1026 ret=-35
[  1488.518248] cpu1: Begin traceback...
[  1488.518248] 
vpanic(c1458e28,de45bc54,de45bc78,c0f3c9d6,c1458e28,c131ab5f,c1458e84,c1458aa8,402,ffffffdd) 
at netbsd:vpanic+0x176
[  1488.528270] 
kern_assert(c1458e28,c131ab5f,c1458e84,c1458aa8,402,ffffffdd,ffffffdd,c54dcac4,c54ef7c4,0) 
at netbsd:kern_assert+0x23
[  1488.538279] 
linux_dma_fence_wait(c54ef7c4,1,c54dcac4,c5f94904,c5f94904,1,c5d11104,1,c5f94970,0) 
at netbsd:linux_dma_fence_wait+0x197
[  1488.538279] 
nouveau_fence_sync(c5f94904,c54dcac4,1,1,0,119,c5ff5244,0,c52584c0,186a0) 
at netbsd:nouveau_fence_sync+0x29a
[  1488.548298] 
nouveau_gem_ioctl_pushbuf(c322e504,de45beac,c35dd884,c0d26ba3,de45be04,ae087000,de45bdc8,40,41,de45bdc8) 
at netbsd:nouveau_gem_ioctl_pushbuf+0x67f
[  1488.548298] 
drm_ioctl(c5495240,c0406481,de45beac,de45bf38,c0dec5d4,c5495240,c0406481,de45beac,c5f290c0,de45bf10) 
at netbsd:drm_ioctl+0x249
[  1488.558310] 
drm_ioctl_shim(c5495240,c0406481,de45beac,c5f290c0,de45bf10,0,c523f314,0,c0406481,0) 
at netbsd:drm_ioctl_shim+0x35
[  1488.578337] 
sys_ioctl(c3436700,de45bf68,de45bf60,c53728a8,1,36,de45bf60,c3436700,0,0) 
at netbsd:sys_ioctl+0x2c3
[  1488.598366] syscall() at netbsd:syscall+0x89
[  1488.598366] --- syscall (number 54) ---
[  1488.598366] b79afc47:
[  1488.598366] cpu1: End traceback...

[  1488.598366] dumping to dev 0,1 offset 1143
[  1488.598366] dump
packardbell_netbsd#


packardbell_netbsd# gdb netbsd.0
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warning: BFD: warning: /var/crash/netbsd.0 has a section extending past 
end of file
Reading symbols from netbsd.0...
(No debugging symbols found in netbsd.0)
(gdb) target kvm netbsd.0.core
0xc012d035 in cpu_reboot ()
(gdb)


I Think I must build the kernel with debugging symbols. Before doing 
that, do you provided kernels with debugging symbols?

Regards.

Ramiro.