Date: Fri, 8 Jan 2016 10:42:33 -0500 From: Kurt Lidl <lidl@pix.net> To: freebsd-sparc64@freebsd.org Cc: FreeBSD-Current <freebsd-current@freebsd.org> Subject: sparc64 traps during probe (r293243) Message-ID: <568FD8E9.30702@pix.net>
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I recently updated a sparc64 V120 from r291993 to r293243, and it now traps during the autoconfiguration phase of the kernel boot: Hit [Enter] to boot immediately, or any other key for command prompt. Booting [/boot/kernel/kernel]... jumping to kernel entry at 0xc00b0000. GDB: no debug ports present KDB: debugger backends: ddb KDB: current backend: ddb Copyright (c) 1992-2016 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 is a registered trademark of The FreeBSD Foundation. FreeBSD 11.0-CURRENT #4 r293243M: Thu Jan 7 13:50:04 EST 2016 lidl@ton.pix.net:/usr/obj/usr/src/sys/GENERIC sparc64 gcc version 4.2.1 20070831 patched [FreeBSD] WARNING: WITNESS option enabled, expect reduced performance. VT: init without driver. real memory = 2147483648 (2048 MB) avail memory = 2063785984 (1968 MB) cpu0: Sun Microsystems UltraSparc-IIe Processor (648.00 MHz CPU) [...] da0 at sym0 bus 0 scbus2 target 0 lun 0 da0: <FUJITSU MAP3367NC 5605> Fixed Direct Access SCSI-3 device da0: Serial Number UPL3P310365J da0: 80.000MB/s transfers (40.000MHz, offset 31, 16bit) da0: Command Queueing enabled da0: 34732MB (71132959 512 byte sectors) cd0 at ata2 bus 0 scbus0 target 0 lun 0 cd0: <TEAC DV-28E-B 1.2B> Removable CD-ROM SCSI device cd0: 33.300MB/s transfers (UDMA2, ATAPI 12bytes, PIO 65534bytes) cd0: 393MB (201600 2048 byte sectors) da1 at sym0 bus 0 scbus2 target 1 lun 0 da1: <FUJITSU MAP3367NC 5605> Fixed Direct Access SCSI-3 device da1: Serial Number UPL3P3506STC da1: 80.000MB/s transfers (40.000MHz, offset 31, 16bit) da1: Command Queueing enabled da1: 34732MB (71132959 512 byte sectors) WARNING: WITNESS option enabled, expect reduced performance. Trying to mount root from zfs:sys/ROOT/default []... GEOM_MIRROR: Device mirror/gswap launched (2/2). [ thread pid 1 tid 100002 ] Stopped at tl0_utrap+0x20: ldx [%l0 + %l1], %l0 db> bt Tracing pid 1 tid 100002 td 0xfffff800016164d0 KDB: reentering KDB: stack backtrace: kdb_reenter() at kdb_reenter+0x5c trap() at trap+0x2fc -- data access exception sfar=0xfffffcf821ca0218 sfsr=0x41029 %o7=0xc06165e8 -- sched_clock() at sched_clock+0x94 statclock_cnt() at statclock_cnt+0x1c0 handleevents() at handleevents+0x138 timercb() at timercb+0x410 tick_intr() at tick_intr+0x220 -- interrupt level=0xe pil=0 %o7=0xc09c6c20 -- -- kernel stack fault %o7=0xc00b1288 -- db_read_bytes() at db_read_bytes+0x44 KDB: reentering KDB: stack backtrace: kdb_reenter() at kdb_reenter+0x5c trap() at trap+0x2fc -- kernel stack fault %o7=0xc011f8f0 -- db_read_bytes() at db_read_bytes+0x44 KDB: reentering KDB: stack backtrace: kdb_reenter() at kdb_reenter+0x5c trap() at trap+0x2fc And then the stack backtrace just keeps repeating. -Kurt
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