Re: Frequent lockups with 5.2-BETA

On 27 Nov 2003, Christian Laursen wrote:

> Since upgrading from 5.1-RELEASE to 5.2-BETA, I've been
> experiencing hard lockups once or twice every day.
>
> I managed to get a trace by enabling the watchdog, which
> put me into the debugger. This is the trace:
>
> db> trace
> Debugger(c06f85ec,1bc169d,0,c0754fc4,c0754bf8) at Debugger+0x54
> watchdog_fire(d73e2bcc,c067b433,c0c57100,0,d73e2bcc) at watchdog_fire+0xc1
> hardclock(d73e2bcc,0,0,d73e2b98,c43bd400) at hardclock+0x15a
> clkintr(d73e2bcc,d73e2b9c,c06c6bf6,0,c1925000) at clkintr+0xe9
> intr_execute_handlers(c0756be0,d73e2bcc,c0c570a0,1000,c0c61300) at intr_execute8
> atpic_handle_intr(0) at atpic_handle_intr+0xef
> Xatpic_intr0() at Xatpic_intr0+0x1e
> --- interrupt, eip = 0xc068db74, esp = 0xd73e2c10, ebp = 0xd73e2c14 ---
> uma_zone_slab(c0c61300,1,0,c068e516,c074edd8) at uma_zone_slab+0x4
> uma_zalloc_internal(c0c61300,0,1,0,d73e2c80) at uma_zalloc_internal+0x5c
> bucket_alloc(2f,1,0,0,0) at bucket_alloc+0x65
> uma_zfree_arg(c0c48240,c49121b8,0,c1922580,3600) at uma_zfree_arg+0x2c6
> tcp_hc_purge(0,c1922580,161e9,142b64fd,c05d7c70) at tcp_hc_purge+0x11f

Great debugging work.  I'm glad to see the software watchdog put to use.
This looks like a problem with the hostcache.  Perhaps andre can look at
it.

Thanks,
Jeff

> softclock(0,0,0,0,c192b54c) at softclock+0x25e
> ithread_loop(c1922580,d73e2d48,0,11,55ff44fd) at ithread_loop+0x1d8
> fork_exit(c0524ec0,c1922580,d73e2d48) at fork_exit+0x80
> fork_trampoline() at fork_trampoline+0x8
> --- trap 0x1, eip = 0, esp = 0xd73e2d7c, ebp = 0 ---
>
> This is the dmesg from the last boot:
>
> Copyright (c) 1992-2003 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
> 	The Regents of the University of California. All rights reserved.
> FreeBSD 5.2-BETA #7: Wed Nov 26 17:24:32 CET 2003
>     root_at_borg.borderworlds.dk:/usr/obj/usr/src/sys/BORG
> Preloaded elf kernel "/boot/kernel/kernel" at 0xc0823000.
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: Intel(R) Celeron(R) CPU 1.70GHz (1716.04-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0xf13  Stepping = 3
>   Features=0x3febfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM>
> real memory  = 536805376 (511 MB)
> avail memory = 511885312 (488 MB)
> Pentium Pro MTRR support enabled
> acpi0: <AMIINT INTEL845> on motherboard
> pcibios: BIOS version 2.10
> Using $PIR table, 15 entries at 0xc00f7810
> acpi0: Power Button (fixed)
> Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
> acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
> acpi_cpu0: <CPU> port 0x530-0x537 on acpi0
> acpi_cpu1: <CPU> port 0x530-0x537 on acpi0
> device_probe_and_attach: acpi_cpu1 attach returned 6
> acpi_button0: <Power Button> on acpi0
> pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
> pci0: <ACPI PCI bus> on pcib0
> agp0: <Intel Generic host to PCI bridge> mem 0xe0000000-0xe3ffffff at device 0.0 on pci0
> pcib1: <PCI-PCI bridge> at device 1.0 on pci0
> pci1: <PCI bus> on pcib1
> pcib0: slot 1 INTA is routed to irq 5
> pcib1: slot 0 INTA is routed to irq 5
> pci1: <display, VGA> at device 0.0 (no driver attached)
> pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0
> pci2: <ACPI PCI bus> on pcib2
> pcib2: slot 10 INTA is routed to irq 10
> pcib2: slot 13 INTA is routed to irq 3
> pcm0: <CMedia CMI8738> port 0xdc00-0xdcff irq 10 at device 10.0 on pci2
> em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.19> port 0xd800-0xd83f mem 0xdfec0000-0xdfedffff,0xdfee0000-0xdfefffff irq 3 at device 13.0 on pci2
> em0:  Speed:N/A  Duplex:N/A
> isab0: <PCI-ISA bridge> at device 31.0 on pci0
> isa0: <ISA bus> on isab0
> atapci0: <Intel ICH4 UDMA100 controller> port 0xfc00-0xfc0f,0-0x3,0-0x7,0-0x3,0-0x7 at device 31.1 on pci0
> ata0: at 0x1f0 irq 14 on atapci0
> ata0: [MPSAFE]
> ata1: at 0x170 irq 15 on atapci0
> ata1: [MPSAFE]
> pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
> atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
> atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
> kbd0 at atkbd0
> psm0: <PS/2 Mouse> irq 12 on atkbdc0
> psm0: model MouseMan+, device ID 0
> fdc0: cmd 3 failed at out byte 1 of 3
> sio0 port 0x3f8-0x3ff irq 4 on acpi0
> sio0: type 16550A, console
> ppc0 port 0x778-0x77b,0x378-0x37f irq 7 drq 3 on acpi0
> ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
> ppc0: FIFO with 16/16/9 bytes threshold
> ppbus0: <Parallel port bus> on ppc0
> plip0: <PLIP network interface> on ppbus0
> lpt0: <Printer> on ppbus0
> lpt0: Interrupt-driven port
> ppi0: <Parallel I/O> on ppbus0
> acpi_cpu1: <CPU> port 0x530-0x537 on acpi0
> device_probe_and_attach: acpi_cpu1 attach returned 6
> fdc0: cmd 3 failed at out byte 1 of 3
> npx0: [FAST]
> npx0: <math processor> on motherboard
> npx0: INT 16 interface
> orm0: <Option ROM> at iomem 0xe0000-0xe0fff on isa0
> pmtimer0 on isa0
> fdc0: cannot reserve I/O port range (6 ports)
> sc0: <System console> at flags 0x100 on isa0
> sc0: VGA <16 virtual consoles, flags=0x100>
> sio1: configured irq 3 not in bitmap of probed irqs 0
> sio1: port may not be enabled
> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
> Timecounter "TSC" frequency 1716042336 Hz quality 800
> Timecounters tick every 10.000 msec
> IPv6 packet filtering initialized, default to accept, logging limited to 100 packets/entry
> ipfw2 initialized, divert disabled, rule-based forwarding enabled, default to accept, logging limited to 100 packets/entry by default
> acpi_cpu: throttling enabled, 8 steps (100% to 12.5%), currently 100.0%
> GEOM: create disk ad0 dp=0xc4508960
> ad0: 76319MB <ST380011A> [155061/16/63] at ata0-master UDMA100
> acd0-5: CDROM with 6 CD changer <CD-C68E> at ata1-master PIO4
> acd6: DVDROM <CREATIVEDVD5240E-1> at ata1-slave PIO4
> acd0-5: FAILURE - LOAD_UNLOAD status=51<READY,DSC,ERROR> sensekey=ILLEGAL REQUEST error=4<ABORTED>
> acd0-5: FAILURE - LOAD_UNLOAD status=51<READY,DSC,ERROR> sensekey=ILLEGAL REQUEST error=4<ABORTED>
> acd0-5: FAILURE - LOAD_UNLOAD status=51<READY,DSC,ERROR> sensekey=ILLEGAL REQUEST error=4<ABORTED>
> acd0-5: FAILURE - LOAD_UNLOAD status=51<READY,DSC,ERROR> sensekey=ILLEGAL REQUEST error=4<ABORTED>
> acd0-5: FAILURE - LOAD_UNLOAD status=51<READY,DSC,ERROR> sensekey=ILLEGAL REQUEST error=4<ABORTED>
> Mounting root from ufs:/dev/ad0s3a
> WARNING: / was not properly dismounted
> WARNING: /tmp was not properly dismounted
> WARNING: /usr was not properly dismounted
> /usr: mount pending error: blocks 8 files 1
> /usr: superblock summary recomputed
> WARNING: /var was not properly dismounted
> /var: mount pending error: blocks 8 files 1
> /var: superblock summary recomputed
> em0: Link is up 100 Mbps Full Duplex
>
> If you need more information, I'll gladly try to make it available.
>
> Thanks.
>
> --
> Best regards
>     Christian Laursen
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