2009/12/23 fengxiangjun <fengxiangjun@xxxxxxxxxxx>: > > Hi, > > with this patch, the problem still exists. > > ata1.01: XXX debounce start, SStatus=4 > ata1.01: XXX debounce done, SStatus=4, DET stable for 520 msecs > ata1.00: SATA link down (SStatus 0 SControl 301) > ata1.01: SATA link down (SStatus 0 Scontrol 300) > ... > VFS; cannot open root device ... > > The kernel just panic, and I can't see what's the messege printing before > that. > > So, I tried 'console=ttyS0 console=tty1'，full dmesg attached。 > > $ hdparm -I /dev/sda: > > /dev/sda: > > ATA device, with non-removable media > Model Number: WDC WD800JD-60LSA5 > Serial Number: WD-WCAM9T882872 > Firmware Revision: 10.01E03 > Standards: > Supported: 7 6 5 4 > Likely used: 8 > Configuration: > Logical max current > cylinders 16383 16383 > heads 16 16 > sectors/track 63 63 > -- > CHS current addressable sectors: 16514064 > LBA user addressable sectors: 156301488 > LBA48 user addressable sectors: 156301488 > device size with M = 1024*1024: 76319 MBytes > device size with M = 1000*1000: 80026 MBytes (80 GB) > cache/buffer size = 8192 KBytes > Capabilities: > LBA, IORDY(can be disabled) > Standby timer values: spec'd by Standard, with device specific > minimum > R/W multiple sector transfer: Max = 16 Current = 16 > DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 > Cycle time: min=120ns recommended=120ns > PIO: pio0 pio1 pio2 pio3 pio4 > Cycle time: no flow control=120ns IORDY flow control=120ns > Commands/features: > Enabled Supported: > * SMART feature set > Security Mode feature set > * Power Management feature set > * Write cache > * Look-ahead > * WRITE_BUFFER command > * READ_BUFFER command > * NOP cmd > * DOWNLOAD_MICROCODE > * 48-bit Address feature set > * Device Configuration Overlay feature set > * Mandatory FLUSH_CACHE > * FLUSH_CACHE_EXT > * SMART error logging > * SMART self-test > * General Purpose Logging feature set > * SATA-I signaling speed (1.5Gb/s) > * SATA-II signaling speed (3.0Gb/s) > * Phy event counters > Device-initiated interface power management > * Software settings preservation > * SMART Command Transport (SCT) feature set > * SCT Long Sector Access (AC1) > * SCT LBA Segment Access (AC2) > * SCT Error Recovery Control (AC3) > * SCT Features Control (AC4) > * SCT Data Tables (AC5) > unknown 206[12] (vendor specific) > Security: > Master password revision code = 65534 > supported > not enabled > not locked > frozen > not expired: security count > supported: enhanced erase > 24min for SECURITY ERASE UNIT. 24min for ENHANCED SECURITY ERASE > UNIT. > Checksum: correct > > Thanks. > > On Wed, 23 Dec 2009, Tejun Heo wrote: > >> Hello, >> >> On 12/22/2009 11:02 AM, fengxiangjun wrote: >> > You are right, it's definitely timing related. >> > >> > I just tried capturing the failed booting message through a null modem >> > cable, but the problem goes away! It seems that I can't reproduce it >> > with serial console attached. >> >> Hmmm... this is the second report of probing failure with SIDPR based >> hardreset. Can you please apply the attached patch and see whether >> the problem is reproducible? And if so, please attach full boot log. >> Can you please also attach hdparm -I output of the occassionally >> failing drive. >> >> Thanks. >> >> -- >> tejun >> > --------------------------------------------------------------------------------------------------- > Confidentiality Notice: The information contained in this e-mail and any accompanying attachment(s) > is intended only for the use of the intended recipient and may be confidential and/or privileged of > Neusoft Corporation, its subsidiaries and/or its affiliates. If any reader of this communication is > not the intended recipient, unauthorized use, forwarding, printing, storing, disclosure or copying > is strictly prohibited, and may be unlawful.If you have received this communication in error,please > immediately notify the sender by return e-mail, and delete the original message and all copies from > your system. Thank you. > --------------------------------------------------------------------------------------------------- > Hey, Could it be an idea to do a bisect for the patch that makes it break? :) /Bjarke -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
