Date: Thu, 17 Nov 2016 07:25:58 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 214598] head -r308247: dump from ddb unsuccessful on a powerpc64 PowerMac G5f. . . Message-ID: <bug-214598-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D214598 Bug ID: 214598 Summary: head -r308247: dump from ddb unsuccessful on a powerpc64 PowerMac G5f. . . Product: Base System Version: CURRENT Hardware: powerpc OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: markmi@dsl-only.net [This was on a PowerMac11,3 (PowerMac G5 "Quad Core" --dual socket-each dual core actually).] head -r308247: As close to a successful dump from ddb as I've ever had on a powerpc64 PowerMac G5. . . but it still fails. . . Transcribed from a camera picture of the screen. . . (I will drop off various leading zeros and some formatting will be differen= t.) KDB: enter: manual escape to debugger [ thread pid 12 tid 10018 ] Stopped at .kdb_enter+0x70: ori r0, r0, 0x0 db> dump Dumping 9 MB (3 chunks) chunk 0: 10MB (2510 pages) ... ok chunk 1: 1MB (24 pages) ... ok chunk 2: 1MB (2 pages)panic: vm_fault: fault on nofault entry, addr: c000000000022000 cpuid =3D 1 KDB: stack backtrace: 0xf93cd0: at .kdb_backtrace+0x6c 0xf93df0: at .vpanic+0x178 0xf93eb0: at .panic+0x34 0xf93f30: at .vm_fault_hold+0x1ac 0xf94120: at .vm_fault+0x98 0xf941c0: at .trap_pfault+0xe8 0xf94240: at .trap+0x1e44 0xf944b0: at .powerpc_interrupt+0x1e0 0xf94550: at kernel DSI read trap 0 0xc000000000022ff8 by .memcpy+0x144: ssr1=3D0x9000000000001032 r1 =3D 0xf94800 cr =3D0x40000424 xer =3D0x20000000 ctr =3D 0x200 r2 =3D 0x10de000 sr =3D0x40000000 0xf94800: at .moea64_kextract+0x124 0xf94840: at tmpstk+0x297c 0xf948c0: at ._bus_dmamap_sync+0x124 0xf94960: at .ata_dmaload+0x1e8 0xf94a00: at .ata_begin_transaction+0x240 0xf94aa0: at .ataaction+0x4e0 0xf94b50: at .xpt_run_devq+0x934 0xf94c40: at .xpt_action_default+0x3a8 0xf94cf0: at .ata_action+0x3c8 0xf94d80: at .xpt_actino+0x44 0xf94e00: at .xpt_polled_action+0x60c 0xf94ec0: at .adadump+0x33c 0xf954e0: at .dump_write+0x88 0xf954e0: at .dump_sys_cb_dumpdata+0x124 0xf955c0: at .dumpsys_foreach_chunk+0x68 0xf95660: at .dumpsys_generic+0x26c 0xf95770: at .doadump+0xbc 0xf95800: at .db_dump+0x44 0xf95880: at .db_command+0x3f4 (I omit the rest going back to blocked_loop+0x38.) Historical note: I probably last tried this under some 10.x vintage and did just reported th= at the DMA request size was too large and stopped. --=20 You are receiving this mail because: You are the assignee for the bug.=
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