Date: Mon, 23 Oct 2006 16:08:27 +0800 From: "Rong-en Fan" <grafan@gmail.com> To: stable@freebsd.org Subject: LOR (intr table and sio) and instability Message-ID: <6eb82e0610230108s4c1431c7t811f7505372cbc1@mail.gmail.com>
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I'm running today's 6-stable on a amd64 SMP (Pentium-D) machine. When turning on witness, I got a LOR on half way of booting: ata0-slave: pio=PIO4 wdma=WDMA2 udma=UDMA100 cable=40 wire ata2-master: pio=PIO4 wdma=WDMA2 udma=UDMA133 cable=40 wire ad4: 157066MB <HDT722516DLA380 V43OA96A> at ata2-master SATA150 ad4: 321672960 sectors [319120C/16H/63S] 16 sectors/interrupt 1 depth queue SMP: AP CPU #1 Launched! cpu1 AP: ID: 0x01000000 VER: 0x00050014 LDR: 0x00000000 DFR: 0xffffffff lint0: 0x00010700 lint1: 0x00000400 TPR: 0x00000000 SVR: 0x000001ff timer: 0x000200ef therm: 0x00010000 err: 0x00010000 pcm: 0x00010000 lock order reversal: 1st 0xffffffff805643c0 intr table (intr table) @ /home/admin/usr/src/sys/amd64/amd64/intr_machdep.c:417 2nd 0xffffffff8056fb00 sio (sio) @ /home/admin/usr/src/sys/dev/sio/sio.c:2586 KDB: stack backtrace: witness_checkorder() at witness_checkorder+0x4e1 _mtx_lock_spin_flags() at _mtx_lock_spin_flags+0x5d siocnputc() at siocnputc+0xf5 cnputc() at cnputc+0x60 putchar() at putchar+0xcb kvprintf() at kvprintf+0x9b printf() at printf+0xe7 intr_assign_next_cpu() at intr_assign_next_cpu+0x7a intr_shuffle_irqs() at intr_shuffle_irqs+0x6b mi_startup() at mi_startup+0xc0 btext() at btext+0x2c INTR: Assigning IRQ 1 to local APIC 0 ioapic0: Assigning ISA IRQ 1 to local APIC 0 INTR: Assigning IRQ 3 to local APIC 1 ioapic0: Assigning ISA IRQ 3 to local APIC 1 INTR: Assigning IRQ 4 to local APIC 0 ioapic0: Assigning ISA IRQ 4 to local APIC 0 INTR: Assigning IRQ 9 to local APIC 1 ioapic0: Assigning ISA IRQ 9 to local APIC 1 INTR: Assigning IRQ 12 to local APIC 0 ioapic0: Assigning ISA IRQ 12 to local APIC 0 INTR: Assigning IRQ 14 to local APIC 1 ioapic0: Assigning ISA IRQ 14 to local APIC 1 INTR: Assigning IRQ 15 to local APIC 0 ioapic0: Assigning ISA IRQ 15 to local APIC 0 INTR: Assigning IRQ 17 to local APIC 1 ioapic0: Assigning PCI IRQ 17 to local APIC 1 GEOM: new disk ad4 Trying to mount root from ufs:/dev/ad4s1a I checked the LOR page, and there no such report. I'm wondering if this is related to the console hang every few days on this machine. When it hangs, keyboard does not work. The only way is to break into ddb and reset it. I just hooked up the serial console few days ago. No hang yet. But I got a panic this noon: Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x18c fault code = supervisor read, page not present instruction pointer = 0x8:0xffffffff801f107e stack pointer = 0x10:0xffffffffb1839b30 frame pointer = 0x10:0xffffffffb1839b60 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = resume, IOPL = 0 current process = 9 (thread taskq) [thread pid 9 tid 100011 ] Stopped at _mtx_lock_sleep+0x80: movl 0x18824(%r12),%r8d db> bt Tracing pid 9 tid 100011 td 0xffffff007b218980 _mtx_lock_sleep() at _mtx_lock_sleep+0x80 unp_gc() at unp_gc+0x4c4 taskqueue_run() at taskqueue_run+0xd5 taskqueue_thread_loop() at taskqueue_thread_loop+0x88 fork_exit() at fork_exit+0x8b fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, rsp = 0xffffffffb1839d00, rbp = 0 --- I searched the mail archive, but it seems there is no similar report. I call 'doadump' in ddb, but after rebooting, savecore says there is no dump there? (i have dump_dev="AUTO" If you need more information, please let me know. Thanks, Rong-En Fan
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