Date: Thu, 5 Feb 2015 09:29:13 +0900 From: "Lundberg, Johannes" <johannes@brilliantservice.co.jp> To: FreeBSD Current <freebsd-current@freebsd.org> Subject: Weird behavior writing to SSD on 2013 MacBook Message-ID: <CAASDrV=d=7aGdsDzDxRS2aXW%2BtWijVmNWrCNSYLWrWWvgwYx6Q@mail.gmail.com>
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Hi
I'm thought I was gonna do some test runs with HEAD on a 2013 Macbook Air
and noticed some weird behavior regarding disk I/O.
This happens both when doing portsnap extract and clone from git repository=
.
For example portsnap extract, the extraction process (the output of it)
suddenly stops, for seconds or maybe even minutes, quite many times during
the whole extraction process.
iostat reports ~200 MB/s on ada0 the whole time during freeze.
pciconf:
ahci0@pci0:4:0:0: class=3D0x010601 card=3D0x91831b4b chip=3D0x91831b4b
rev=3D0x14 hdr=3D0x00
vendor =3D 'Marvell Technology Group Ltd.'
class =3D mass storage
subclass =3D SATA
dmesg (relevant lines?):
ahci0: <Marvell 88SS9183 AHCI SATA controller> port
0x1028-0x102f,0x1034-0x1037,0x1020-0x1027,0x1030-0x1033,0x1000-0x101f mem
0xb0700000-0xb07001ff at device 0.0 on pci4
ahci0: AHCI v1.00 with 1 6Gbps ports, Port Multiplier not supported
ahcich0: <AHCI channel> at channel 0 on ahci0
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <APPLE SSD SD0128F A222821> ATA-8 SATA 3.x device
ada0: Serial Number 1325A5401681 \^T\^T\^T\^T\^T\^T\^T
ada0: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 512bytes)
ada0: Command Queueing enabled
ada0: 115712MB (236978176 512 byte sectors: 16H 63S/T 16383C)
ada0: Previously was known as ad4
GEOM: ada0: enabling Boot Camp
GEOM: diskid/DISK-1325A5401681%20%14%14%14%14%14%14%14: enabling Boot Camp
gpart:
=3D> 34 236978109 ada0 GPT (113G)
34 6 - free - (3.0K)
40 409600 1 efi (200M)
409640 174519128 2 apple-hfs (83G)
174928768 1269536 3 apple-boot (620M)
176198304 1376 - free - (688K)
176199680 29782016 4 linux-data (14G)
205981696 2097152 5 linux-swap (1.0G)
208078848 1600 6 efi (800K)
208080448 27261368 7 freebsd-ufs (13G)
235341816 1445888 8 freebsd-swap (706M)
236787704 190439 - free - (93M)
One other weird thing is that FreeBSD does not show up in the refind boot
menu by default, only OSX and Linux. I have to press ESC once to reload for
FreeBSD boot option to show up.. Any clues? Is my partition configuration
wrong in some way?
Thanks!
--
Johannes Lundberg
BRILLIANTSERVICE CO., LTD.
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---
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