Patchwork AHCI driver problem on SB700/SB800 w/ Acer Ferrari One

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Submitter Rafael J. Wysocki
Date May 11, 2011, 10:25 p.m.
Message ID <201105120025.34531.rjw@sisk.pl>
Download mbox | patch
Permalink /patch/95202/
State Not Applicable
Delegated to: David Miller
Headers show

Comments

Rafael J. Wysocki - May 11, 2011, 10:25 p.m.
Hi,

There seems to be a problem on my Acer box which is related to DIPM
and switching the power source.  Namely, when I detach the AC adapter from
the machine, the disk (which is an Intel SSD) freezes for a while and
something like this appears in dmesg:

[ 2177.808120] ata1.00: exception Emask 0x0 SAct 0x7 SErr 0xd0002 action 0x6 frozen
[ 2177.808140] ata1: SError: { RecovComm PHYRdyChg CommWake 10B8B }
[ 2177.808153] ata1.00: failed command: WRITE FPDMA QUEUED
[ 2177.808171] ata1.00: cmd 61/08:00:08:ed:37/00:00:06:00:00/40 tag 0 ncq 4096 out
[ 2177.808174]          res 40/00:00:01:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 2177.808192] ata1.00: status: { DRDY }
[ 2177.808201] ata1.00: failed command: WRITE FPDMA QUEUED
[ 2177.808218] ata1.00: cmd 61/08:08:48:f4:c7/00:00:05:00:00/40 tag 1 ncq 4096 out
[ 2177.808220]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 2177.808239] ata1.00: status: { DRDY }
[ 2177.808247] ata1.00: failed command: WRITE FPDMA QUEUED
[ 2177.808275] ata1.00: cmd 61/08:10:50:f4:c7/00:00:05:00:00/40 tag 2 ncq 4096 out
[ 2177.808277]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 2177.808303] ata1.00: status: { DRDY }
[ 2177.808320] ata1: hard resetting link
[ 2187.812149] ata1: softreset failed (1st FIS failed)
[ 2187.812227] ata1: hard resetting link
[ 2188.304128] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 2188.304774] ata1.00: configured for UDMA/133
[ 2188.320333] ata1.00: device reported invalid CHS sector 0
[ 2188.320361] ata1.00: device reported invalid CHS sector 0
[ 2188.320394] ata1: EH complete

Then, when the AC adapter is attached again, the SSD freezes again and this
appears in dmesg:

[178523.064145] ata1.00: qc timeout (cmd 0xef)
[178523.064228] ata1.00: failed to disable DIPM, Emask 0x4
[178523.064248] ata1: hard resetting link
[178523.556096] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[178523.556793] ata1.00: configured for UDMA/133
[178523.572051] ata1: EH complete

That seems to be reproducible 100% of the time.  Moreover, if the box is
suspended on AC power and then resume on battery power, something more serious
happens:

[178881.824160] ata1.00: exception Emask 0x0 SAct 0x7fffffff SErr 0xd0002 action 0x6 frozen
[178881.824203] ata1: SError: { RecovComm PHYRdyChg CommWake 10B8B }
[178881.824223] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.824249] ata1.00: cmd 61/08:00:00:d0:9e/00:00:01:00:00/40 tag 0 ncq 4096 out
[178881.824252]          res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.824288] ata1.00: status: { DRDY }
[178881.824304] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.824328] ata1.00: cmd 61/08:08:48:d0:9e/00:00:01:00:00/40 tag 1 ncq 4096 out
[178881.824331]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.824366] ata1.00: status: { DRDY }
[178881.824381] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.824405] ata1.00: cmd 61/08:10:00:d2:9e/00:00:01:00:00/40 tag 2 ncq 4096 out
[178881.824408]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.824443] ata1.00: status: { DRDY }
[178881.824457] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.824481] ata1.00: cmd 61/08:18:20:d3:9e/00:00:01:00:00/40 tag 3 ncq 4096 out
[178881.824484]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.824519] ata1.00: status: { DRDY }
[178881.824534] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.824557] ata1.00: cmd 61/10:20:90:da:9e/00:00:01:00:00/40 tag 4 ncq 8192 out
[178881.824560]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.824595] ata1.00: status: { DRDY }
[178881.824610] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.824633] ata1.00: cmd 61/08:28:c0:5a:6c/00:00:01:00:00/40 tag 5 ncq 4096 out
[178881.824637]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.824671] ata1.00: status: { DRDY }
[178881.824710] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.824731] ata1.00: cmd 61/10:30:48:5f:98/00:00:01:00:00/40 tag 6 ncq 8192 out
[178881.824734]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.824760] ata1.00: status: { DRDY }
[178881.824773] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.824794] ata1.00: cmd 61/08:38:e0:1a:a4/00:00:01:00:00/40 tag 7 ncq 4096 out
[178881.824797]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.824823] ata1.00: status: { DRDY }
[178881.824836] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.824856] ata1.00: cmd 61/08:40:90:29:ac/00:00:01:00:00/40 tag 8 ncq 4096 out
[178881.824859]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.824885] ata1.00: status: { DRDY }
[178881.824898] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.824919] ata1.00: cmd 61/08:48:a0:33:a4/00:00:01:00:00/40 tag 9 ncq 4096 out
[178881.824922]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.824949] ata1.00: status: { DRDY }
[178881.824961] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.824982] ata1.00: cmd 61/08:50:c8:51:ac/00:00:01:00:00/40 tag 10 ncq 4096 out
[178881.824985]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825012] ata1.00: status: { DRDY }
[178881.825025] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825046] ata1.00: cmd 61/10:58:00:50:96/00:00:01:00:00/40 tag 11 ncq 8192 out
[178881.825049]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825075] ata1.00: status: { DRDY }
[178881.825087] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825108] ata1.00: cmd 61/08:60:20:50:96/00:00:01:00:00/40 tag 12 ncq 4096 out
[178881.825111]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825137] ata1.00: status: { DRDY }
[178881.825149] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825170] ata1.00: cmd 61/08:68:40:50:96/00:00:01:00:00/40 tag 13 ncq 4096 out
[178881.825173]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825199] ata1.00: status: { DRDY }
[178881.825212] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825232] ata1.00: cmd 61/10:70:e0:4c:94/00:00:01:00:00/40 tag 14 ncq 8192 out
[178881.825235]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825261] ata1.00: status: { DRDY }
[178881.825273] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825294] ata1.00: cmd 61/10:78:80:55:7b/00:00:01:00:00/40 tag 15 ncq 8192 out
[178881.825297]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825323] ata1.00: status: { DRDY }
[178881.825335] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825356] ata1.00: cmd 61/08:80:68:60:64/00:00:01:00:00/40 tag 16 ncq 4096 out
[178881.825359]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825385] ata1.00: status: { DRDY }
[178881.825398] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825419] ata1.00: cmd 61/08:88:c8:5a:6c/00:00:01:00:00/40 tag 17 ncq 4096 out
[178881.825422]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825449] ata1.00: status: { DRDY }
[178881.825461] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825461] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825482] ata1.00: cmd 61/08:90:b8:b6:64/00:00:01:00:00/40 tag 18 ncq 4096 out
[178881.825485]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825512] ata1.00: status: { DRDY }
[178881.825524] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825545] ata1.00: cmd 61/10:98:a8:a2:6d/00:00:01:00:00/40 tag 19 ncq 8192 out
[178881.825548]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825574] ata1.00: status: { DRDY }
[178881.825587] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825608] ata1.00: cmd 61/08:a0:58:f6:76/00:00:01:00:00/40 tag 20 ncq 4096 out
[178881.825611]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825637] ata1.00: status: { DRDY }
[178881.825649] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825670] ata1.00: cmd 61/08:a8:e0:28:3b/00:00:06:00:00/40 tag 21 ncq 4096 out
[178881.825673]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825699] ata1.00: status: { DRDY }
[178881.825712] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825732] ata1.00: cmd 61/48:b0:c0:1e:a5/01:00:04:00:00/40 tag 22 ncq 167936 out
[178881.825735]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825761] ata1.00: status: { DRDY }
[178881.825774] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825794] ata1.00: cmd 61/08:b8:78:c1:37/00:00:06:00:00/40 tag 23 ncq 4096 out
[178881.825798]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825824] ata1.00: status: { DRDY }
[178881.825836] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825857] ata1.00: cmd 61/18:c0:98:c1:37/00:00:06:00:00/40 tag 24 ncq 12288 out
[178881.825860]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825886] ata1.00: status: { DRDY }
[178881.825899] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825919] ata1.00: cmd 61/08:c8:10:c1:37/00:00:06:00:00/40 tag 25 ncq 4096 out
[178881.825923]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.825949] ata1.00: status: { DRDY }
[178881.825961] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.825982] ata1.00: cmd 61/10:d0:30:c1:37/00:00:06:00:00/40 tag 26 ncq 8192 out
[178881.825985]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.826011] ata1.00: status: { DRDY }
[178881.826024] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.826045] ata1.00: cmd 61/18:d8:50:c1:37/00:00:06:00:00/40 tag 27 ncq 12288 out
[178881.826048]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.826074] ata1.00: status: { DRDY }
[178881.826086] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.826107] ata1.00: cmd 61/08:e0:d8:a2:35/00:00:06:00:00/40 tag 28 ncq 4096 out
[178881.826110]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.826137] ata1.00: status: { DRDY }
[178881.826149] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.826170] ata1.00: cmd 61/08:e8:d0:a3:35/00:00:06:00:00/40 tag 29 ncq 4096 out
[178881.826173]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.826199] ata1.00: status: { DRDY }
[178881.826211] ata1.00: failed command: WRITE FPDMA QUEUED
[178881.826232] ata1.00: cmd 61/08:f0:50:e5:64/00:00:06:00:00/40 tag 30 ncq 4096 out
[178881.826235]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[178881.826261] ata1.00: status: { DRDY }
[178881.826278] ata1: hard resetting link
[178891.824149] ata1: softreset failed (1st FIS failed)
[178891.824188] ata1: hard resetting link
[178892.320170] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[178892.320874] ata1.00: configured for UDMA/133
[178892.336156] ata1.00: device reported invalid CHS sector 0
[178892.336199] ata1.00: device reported invalid CHS sector 0
[178892.336218] ata1.00: device reported invalid CHS sector 0
[178892.336236] ata1.00: device reported invalid CHS sector 0
[178892.336254] ata1.00: device reported invalid CHS sector 0
[178892.336272] ata1.00: device reported invalid CHS sector 0
[178892.336290] ata1.00: device reported invalid CHS sector 0
[178892.336308] ata1.00: device reported invalid CHS sector 0
[178892.336327] ata1.00: device reported invalid CHS sector 0
[178892.336345] ata1.00: device reported invalid CHS sector 0
[178892.336363] ata1.00: device reported invalid CHS sector 0
[178892.336381] ata1.00: device reported invalid CHS sector 0
[178892.336399] ata1.00: device reported invalid CHS sector 0
[178892.336418] ata1.00: device reported invalid CHS sector 0
[178892.336436] ata1.00: device reported invalid CHS sector 0
[178892.336455] ata1.00: device reported invalid CHS sector 0
[178892.336474] ata1.00: device reported invalid CHS sector 0
[178892.336492] ata1.00: device reported invalid CHS sector 0
[178892.336512] ata1.00: device reported invalid CHS sector 0
[178892.336530] ata1.00: device reported invalid CHS sector 0
[178892.336548] ata1.00: device reported invalid CHS sector 0
[178892.336567] ata1.00: device reported invalid CHS sector 0
[178892.336586] ata1.00: device reported invalid CHS sector 0
[178892.336604] ata1.00: device reported invalid CHS sector 0
[178892.336622] ata1.00: device reported invalid CHS sector 0
[178892.336640] ata1.00: device reported invalid CHS sector 0
[178892.336658] ata1.00: device reported invalid CHS sector 0
[178892.336677] ata1.00: device reported invalid CHS sector 0
[178892.336694] ata1.00: device reported invalid CHS sector 0
[178892.336712] ata1.00: device reported invalid CHS sector 0
[178892.336731] ata1.00: device reported invalid CHS sector 0
[178892.336837] ata1: EH complete

This doesn't happen if the box is both suspended and resumed on battery
power.

I have verified that the issue described above doesn't happen with
the appended patch applied.

The hardware is:

00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller [AHCI mode] (prog-if 01 [AHCI 1.0])
        Subsystem: Acer Incorporated [ALI] Device 029e
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 64
        Interrupt: pin A routed to IRQ 22
        Region 0: I/O ports at 8420 [size=8]
        Region 1: I/O ports at 8414 [size=4]
        Region 2: I/O ports at 8418 [size=8]
        Region 3: I/O ports at 8410 [size=4]
        Region 4: I/O ports at 8400 [size=16]
        Region 5: Memory at f0508000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: [60] Power Management version 2
                Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [70] SATA HBA v1.0 InCfgSpace
        Kernel driver in use: ahci

[    3.336087] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[    3.340777] ata1.00: ATA-7: INTEL SSDSA2M080G2GC, 2CV102HD, max UDMA/133
[    3.345233] ata1.00: 156301488 sectors, multi 16: LBA48 NCQ (depth 31/32)
[    3.350070] ata1.00: configured for UDMA/133
[    3.354969] scsi 0:0:0:0: Direct-Access     ATA      INTEL SSDSA2M080 2CV1 PQ: 0 ANSI: 5

Please tell me if there's anything I can do as a permanent workaround.

Thanks,
Rafael


---
 drivers/ata/ahci.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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lkml20100708@newton.leun.net - May 13, 2011, 12:37 p.m.
On Thu, 12 May 2011 00:25:34 +0200
"Rafael J. Wysocki" <rjw@sisk.pl> wrote:

> There seems to be a problem on my Acer box which is related to DIPM
> and switching the power source.  Namely, when I detach the AC adapter
> from the machine, the disk (which is an Intel SSD) freezes for a
> while and something like this appears in dmesg:
[...]

Since updating to 2.6.39-rc7 (from 2.6.38.x) I have similar problems
with two notebooks using Intel ICH:

Acer PTZ1825
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI
Controller (rev 03) (prog-if 01 [AHCI 1.0]) Subsystem: Acer
Incorporated [ALI] Device 0300 Flags: bus master, 66MHz, medium devsel,
latency 0, IRQ 42 I/O ports at 30e8 [size=8]
        I/O ports at 30fc [size=4]
        I/O ports at 30e0 [size=8]
        I/O ports at 30f8 [size=4]
        I/O ports at 3020 [size=32]
        Memory at d4504000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: [80] MSI: Enable+ Count=1/16 Maskable- 64bit-
        Capabilities: [70] Power Management version 3
        Capabilities: [a8] SATA HBA v1.0
        Capabilities: [b0] PCI Advanced Features
        Kernel driver in use: ahci


Dell Latitude E6510
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset
6 port SATA AHCI Cont roller (rev 05) (prog-if 01 [AHCI 1.0])
        Subsystem: Dell Device 040b
        Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 41
        I/O ports at 8090 [size=8]
        I/O ports at 8080 [size=4]
        I/O ports at 8070 [size=8]
        I/O ports at 8060 [size=4]
        I/O ports at 8020 [size=32]
        Memory at e9640000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [70] Power Management version 3
        Capabilities: [a8] SATA HBA v1.0
        Capabilities: [b0] PCI Advanced Features
        Kernel driver in use: ahci

Patch not tried yet (do not know / not looked into yet where to change
for this chipset).

Seems to be a 2.6.39-rcX regression?
Rafael J. Wysocki - May 13, 2011, 4:56 p.m.
On Friday, May 13, 2011, Michael Leun wrote:
> On Thu, 12 May 2011 00:25:34 +0200
> "Rafael J. Wysocki" <rjw@sisk.pl> wrote:
> 
> > There seems to be a problem on my Acer box which is related to DIPM
> > and switching the power source.  Namely, when I detach the AC adapter
> > from the machine, the disk (which is an Intel SSD) freezes for a
> > while and something like this appears in dmesg:
> [...]
> 
> Since updating to 2.6.39-rc7 (from 2.6.38.x) I have similar problems
> with two notebooks using Intel ICH:
> 
> Acer PTZ1825
> 00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI
> Controller (rev 03) (prog-if 01 [AHCI 1.0]) Subsystem: Acer
> Incorporated [ALI] Device 0300 Flags: bus master, 66MHz, medium devsel,
> latency 0, IRQ 42 I/O ports at 30e8 [size=8]
>         I/O ports at 30fc [size=4]
>         I/O ports at 30e0 [size=8]
>         I/O ports at 30f8 [size=4]
>         I/O ports at 3020 [size=32]
>         Memory at d4504000 (32-bit, non-prefetchable) [size=2K]
>         Capabilities: [80] MSI: Enable+ Count=1/16 Maskable- 64bit-
>         Capabilities: [70] Power Management version 3
>         Capabilities: [a8] SATA HBA v1.0
>         Capabilities: [b0] PCI Advanced Features
>         Kernel driver in use: ahci
> 
> 
> Dell Latitude E6510
> 00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset
> 6 port SATA AHCI Cont roller (rev 05) (prog-if 01 [AHCI 1.0])
>         Subsystem: Dell Device 040b
>         Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 41
>         I/O ports at 8090 [size=8]
>         I/O ports at 8080 [size=4]
>         I/O ports at 8070 [size=8]
>         I/O ports at 8060 [size=4]
>         I/O ports at 8020 [size=32]
>         Memory at e9640000 (32-bit, non-prefetchable) [size=2K]
>         Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
>         Capabilities: [70] Power Management version 3
>         Capabilities: [a8] SATA HBA v1.0
>         Capabilities: [b0] PCI Advanced Features
>         Kernel driver in use: ahci
> 
> Patch not tried yet (do not know / not looked into yet where to change
> for this chipset).
> 
> Seems to be a 2.6.39-rcX regression?

Well, that very well may be the case.

Can you verify that it didn't happen with 2.6.38 and earlier?

Rafael
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Tejun Heo - May 13, 2011, 5:39 p.m.
Hello,

Can you guys please take a look at bug#34692?  It seems to be the same problem.

  https://bugzilla.kernel.org/show_bug.cgi?id=34692

The offending commit seems to be 270dac35c2.  Does reverting it
resolves the problem for you guys too?

Thanks.

--
tejun
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lkml20100708@newton.leun.net - May 13, 2011, 7:54 p.m.
On Fri, 13 May 2011 19:39:51 +0200
Tejun Heo <tj@kernel.org> wrote:

> Can you guys please take a look at bug#34692?  It seems to be the
> same problem.
> 
>   https://bugzilla.kernel.org/show_bug.cgi?id=34692
> 
> The offending commit seems to be 270dac35c2.  Does reverting it
> resolves the problem for you guys too?

- Does not happen with 2.6.38.6

- Happens 100% of cases with 2.6.39-rc7 (connect ac adapter or suspend
  to ram with ac connected and resume with ac disconnected)

- Reverting 270dac35c26433d06a89150c51e75ca0181ca7e4 fixes issue
Rafael J. Wysocki - May 13, 2011, 8:20 p.m.
On Friday, May 13, 2011, Michael Leun wrote:
> On Fri, 13 May 2011 19:39:51 +0200
> Tejun Heo <tj@kernel.org> wrote:
> 
> > Can you guys please take a look at bug#34692?  It seems to be the
> > same problem.
> > 
> >   https://bugzilla.kernel.org/show_bug.cgi?id=34692
> > 
> > The offending commit seems to be 270dac35c2.  Does reverting it
> > resolves the problem for you guys too?
> 
> - Does not happen with 2.6.38.6
> 
> - Happens 100% of cases with 2.6.39-rc7 (connect ac adapter or suspend
>   to ram with ac connected and resume with ac disconnected)
> 
> - Reverting 270dac35c26433d06a89150c51e75ca0181ca7e4 fixes issue

I can confirm that.

Thanks,
Rafael
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Rafael J. Wysocki - May 13, 2011, 8:22 p.m.
On Friday, May 13, 2011, Tejun Heo wrote:
> Hello,
> 
> Can you guys please take a look at bug#34692?  It seems to be the same problem.
> 
>   https://bugzilla.kernel.org/show_bug.cgi?id=34692

Yes, same issue.

> The offending commit seems to be 270dac35c2.  Does reverting it
> resolves the problem for you guys too?

Yes, it does.

Thanks,
Rafael
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Rafael J. Wysocki - May 13, 2011, 8:44 p.m.
On Friday, May 13, 2011, Rafael J. Wysocki wrote:
> On Friday, May 13, 2011, Tejun Heo wrote:
> > Hello,
> > 
> > Can you guys please take a look at bug#34692?  It seems to be the same problem.
> > 
> >   https://bugzilla.kernel.org/show_bug.cgi?id=34692
> 
> Yes, same issue.
> 
> > The offending commit seems to be 270dac35c2.  Does reverting it
> > resolves the problem for you guys too?
> 
> Yes, it does.

Would you object if I asked Linus to revert that commit?

Rafael
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Robert Hancock - May 14, 2011, 2:08 a.m.
On 05/13/2011 02:44 PM, Rafael J. Wysocki wrote:
> On Friday, May 13, 2011, Rafael J. Wysocki wrote:
>> On Friday, May 13, 2011, Tejun Heo wrote:
>>> Hello,
>>>
>>> Can you guys please take a look at bug#34692?  It seems to be the same problem.
>>>
>>>    https://bugzilla.kernel.org/show_bug.cgi?id=34692
>>
>> Yes, same issue.
>>
>>> The offending commit seems to be 270dac35c2.  Does reverting it
>>> resolves the problem for you guys too?
>>
>> Yes, it does.
>
> Would you object if I asked Linus to revert that commit?

Think that's likely the best solution for now. I'm guessing there's some 
case where link power management trips up the check that was added. Most 
or all existing released controllers don't need it so I think Jian could 
likely try again after 2.6.39.
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Tejun Heo - May 14, 2011, 10:18 a.m.
Hello,

On Fri, May 13, 2011 at 10:44:29PM +0200, Rafael J. Wysocki wrote:
> On Friday, May 13, 2011, Rafael J. Wysocki wrote:
> > On Friday, May 13, 2011, Tejun Heo wrote:
> > > Hello,
> > > 
> > > Can you guys please take a look at bug#34692?  It seems to be the same problem.
> > > 
> > >   https://bugzilla.kernel.org/show_bug.cgi?id=34692
> > 
> > Yes, same issue.
> > 
> > > The offending commit seems to be 270dac35c2.  Does reverting it
> > > resolves the problem for you guys too?
> > 
> > Yes, it does.
> 
> Would you object if I asked Linus to revert that commit?

Not at all.  I think that's the best option at this point.  I'll send
revert patch right now.

Thanks.
Rafael J. Wysocki - May 19, 2011, 10:19 a.m.
On Thursday, May 19, 2011, Jian Peng wrote:
> Hi, Rafael,

Hi,

> I am using Dell E6410 with same AHCI host controller as your system, but
> could not reproduce the bug you found out (using Ubuntu 11.04 and 2.6.39-rc6
> kernel).

OK, do I think correctly you tested without the patch you sent previously?

> Do you know which config file I need change to perform this testing?

I'm not sure what you mean.  The kernel .config?

Rafael
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Rafael J. Wysocki - May 19, 2011, 9:32 p.m.
On Thursday, May 19, 2011, Jian Peng wrote:
> Hi, Rafael,
> 
> Yes. I tested without reverting the patch that caused failure on E6410 (with
> same AHCI controller), The system is Ubuntu 11.04 with default 2.6.39-rc6
> kernel (guess this should be same kernel as yours before reverting the
> patch).
> 
> My system worked well with AC power cable plugging in and out at boot time,
> at runtime, and during "dd if=/dev/sda5 of=/dev/null ..".

What kind of disk did you use?  Mine is an Intel SSD.

> The config file I mentioned is those under /etc/ or other directories that
> is used to control the power management.

They aren't relevant to this issue.

> Did you test my patch? What it the result?

No, I didn't.  Unfortunately, I won't be able to do any tests on the affected
machine in the near future (most probably for the next two weeks or so).

Thanks,
Rafael
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Rafael J. Wysocki - May 19, 2011, 10:03 p.m.
On Thursday, May 19, 2011, Jian Peng wrote:
> Hi, Rafael,
> 
> I am using internal WDC laptop HDD. I will give SDD a try even though I only
> have non-Intel SDD now.
> 
> Is your SDD the boot disk (by swapping the built-in HDD out)

Yes, it is.

> or the extra one installed using device bay on Dell laptop?

The machine is not a Dell.  It's an Acer.

Thanks,
Rafael
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Patch

Index: linux-2.6/drivers/ata/ahci.c
===================================================================
--- linux-2.6.orig/drivers/ata/ahci.c
+++ linux-2.6/drivers/ata/ahci.c
@@ -193,7 +193,7 @@  static const struct ata_port_info ahci_p
 	[board_ahci_sb700] =	/* for SB700 and SB800 */
 	{
 		AHCI_HFLAGS	(AHCI_HFLAG_IGN_SERR_INTERNAL),
-		.flags		= AHCI_FLAG_COMMON,
+		.flags		= AHCI_FLAG_COMMON | ATA_FLAG_NO_DIPM,
 		.pio_mask	= ATA_PIO4,
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &ahci_sb600_ops,