Bug 459144
| Summary: | ahci has timeouts during boot on JMB363-SiI5723 cascade without drives | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Jukka Lehtonen <jukka.lehtonen> | ||||
| Component: | kernel | Assignee: | David Milburn <dmilburn> | ||||
| Status: | CLOSED WONTFIX | QA Contact: | Red Hat Kernel QE team <kernel-qe> | ||||
| Severity: | low | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 5.2 | CC: | jfeeney, peterm | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2013-10-30 22:14:51 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Would it be possible to try and reproduce this on a more recent kernel and attach the full dmesg output? Thanks. http://people.redhat.com/jwilson/el5/206.el5/ Created attachment 432116 [details]
dmesg
Output of 2.6.18-206.el5, as requested.
I have backported this upstream patch to RHEL5, I will make a test kernel
available as soon as possible.
commit 5594639aab8b5614cb27a3e5b2b627505cbcd137
Author: Tejun Heo <tj>
Date: Tue Aug 4 14:30:08 2009 +0900
ahci: add workaround for on-board 5723s on some gigabyte boards
Some gigabytes have on-board SIMG5723s connected to JMB ahcis. These
are used to implement hardware raid. Unfortunately some firmware
revisions on these 5723s don't bring the link down when all the
downstream ports are unoccupied while not responding to reset protocol
which makes libata think that there's device attached to the port but
is not responding and retry. This results in painfully wrong boot
detection time for these ports when they're empty.
This patch quirks those boards such that ahci gives up after the
initial timeout. Combined with parallel probing, this gives quick
enough probing and also is safe because SIMG5723 will respond to the
first try if any of the downstream ports is occupied.
This Bugzilla has been reviewed by Red Hat and is not planned on being addressed in Red Hat Enterprise Linux 5, and therefore is being closed. If this bug is critical to production systems, please contact your Red Hat support representative and provide a sufficient business justification in order to re-open it. |
Description of problem: Gigabyte GA-EP45-DQ6 (rev 1.0, BIOS F5) motherboard has ICH10R and Jmicron JMB363 SATA2 controllers. The board has one Silicon Image 5723 RAID controller connected to each SATA port of the JMB363. If there are no hard drives connected to ports of a 5723 chip, ahci module produces warnings and delays boot somewhat. Version-Release number of selected component (if applicable): kernel-2.6.18-92.el5 kernel-2.6.18-92.1.10.el5 How reproducible: Always Steps to Reproduce: 1. Boot without drives connected to 5723 ports 2. 3. Actual results: ahci scans SATA port on JMB363 and is forced to do resets, although there are no hard drives connected. Expected results: ahci observes the SiI5723 device and finds out that there is no hard drives connected to it. Additional info: # lspci -n 00:00.0 0600: 8086:2e20 (rev 02) 00:01.0 0604: 8086:2e21 (rev 02) 00:1a.0 0c03: 8086:3a37 00:1a.1 0c03: 8086:3a38 00:1a.2 0c03: 8086:3a39 00:1a.7 0c03: 8086:3a3c 00:1b.0 0403: 8086:3a3e 00:1c.0 0604: 8086:3a40 00:1c.4 0604: 8086:3a48 00:1d.0 0c03: 8086:3a34 00:1d.1 0c03: 8086:3a35 00:1d.2 0c03: 8086:3a36 00:1d.7 0c03: 8086:3a3a 00:1e.0 0604: 8086:244e (rev 90) 00:1f.0 0601: 8086:3a16 00:1f.2 0104: 8086:2822 00:1f.3 0c05: 8086:3a30 01:00.0 0300: 10de:0600 (rev a2) 02:00.0 0604: 111d:802d (rev 0d) 03:01.0 0604: 111d:802d (rev 0d) 03:02.0 0604: 111d:802d (rev 0d) 03:03.0 0604: 111d:802d (rev 0d) 03:04.0 0604: 111d:802d (rev 0d) 03:05.0 0604: 111d:802d (rev 0d) 03:06.0 0604: 111d:802d (rev 0d) 05:00.0 0200: 10ec:8168 (rev 02) 0a:00.0 0106: 197b:2363 (rev 02) 0a:00.1 0101: 197b:2363 (rev 02) 0b:06.0 0c00: 104c:8024 # snip of dmesg SCSI subsystem initialized libata version 3.00 loaded. ahci 0000:00:1f.2: version 3.0 ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 98 ahci 0000:00:1f.2: AHCI 0001.0200 32 slots 6 ports 3 Gbps 0x3f impl RAID mode ahci 0000:00:1f.2: flags: 64bit ncq sntf stag pm led clo pmp pio slum part PCI: Setting latency timer of device 0000:00:1f.2 to 64 scsi0 : ahci scsi1 : ahci scsi2 : ahci scsi3 : ahci scsi4 : ahci scsi5 : ahci ata1: SATA max UDMA/133 abar m2048@0xec606000 port 0xec606100 irq 106 ata2: SATA max UDMA/133 abar m2048@0xec606000 port 0xec606180 irq 106 ata3: SATA max UDMA/133 abar m2048@0xec606000 port 0xec606200 irq 106 ata4: SATA max UDMA/133 abar m2048@0xec606000 port 0xec606280 irq 106 ata5: SATA max UDMA/133 abar m2048@0xec606000 port 0xec606300 irq 106 ata6: SATA max UDMA/133 abar m2048@0xec606000 port 0xec606380 irq 106 ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata1.00: HPA detected: current 625140335, native 625142448 ata1.00: ATA-8: ST3320613AS, SD11, max UDMA/133 ata1.00: 625140335 sectors, multi 0: LBA48 NCQ (depth 31/32) ata1.00: configured for UDMA/133 ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.00: ATA-8: ST3320613AS, SD11, max UDMA/133 ata2.00: 625142448 sectors, multi 0: LBA48 NCQ (depth 31/32) ata2.00: configured for UDMA/133 ata3: SATA link down (SStatus 0 SControl 300) ata4: SATA link down (SStatus 0 SControl 300) ata5: SATA link down (SStatus 0 SControl 300) ata6: SATA link down (SStatus 0 SControl 300) Vendor: ATA Model: ST3320613AS Rev: SD11 Type: Direct-Access ANSI SCSI revision: 05 SCSI device sda: 625140335 512-byte hdwr sectors (320072 MB) sda: Write Protect is off sda: Mode Sense: 00 3a 00 00 SCSI device sda: drive cache: write back SCSI device sda: 625140335 512-byte hdwr sectors (320072 MB) sda: Write Protect is off sda: Mode Sense: 00 3a 00 00 SCSI device sda: drive cache: write back sda: sda1 sda2 sda3 sda4 < sda5 sda6 > sd 0:0:0:0: Attached scsi disk sda Vendor: ATA Model: ST3320613AS Rev: SD11 Type: Direct-Access ANSI SCSI revision: 05 SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB) sdb: Write Protect is off sdb: Mode Sense: 00 3a 00 00 SCSI device sdb: drive cache: write back SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB) sdb: Write Protect is off sdb: Mode Sense: 00 3a 00 00 SCSI device sdb: drive cache: write back sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 > sd 1:0:0:0: Attached scsi disk sdb ACPI: PCI Interrupt 0000:0a:00.0[A] -> GSI 16 (level, low) -> IRQ 169 ahci 0000:0a:00.0: AHCI 0001.0000 32 slots 2 ports 3 Gbps 0x3 impl SATA mode ahci 0000:0a:00.0: flags: 64bit ncq pm led clo pmp pio slum part PCI: Setting latency timer of device 0000:0a:00.0 to 64 scsi6 : ahci scsi7 : ahci ata7: SATA max UDMA/133 abar m8192@0xec400000 port 0xec400100 irq 169 ata8: SATA max UDMA/133 abar m8192@0xec400000 port 0xec400180 irq 169 ata7: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata7.15: Port Multiplier 1.1, 0x1095:0x5723 r33, 2 ports, feat 0x1/0x9 ata7.00: hard resetting link ata7.00: SATA link up 3.0 Gbps (SStatus 123 SControl 320) ata7.01: hard resetting link ata7.01: SATA link down (SStatus 0 SControl 320) ata7.00: ATA-7: External Disk 0, 1.1570, max UDMA/133 ata7.00: 976773168 sectors, multi 1: LBA48 NCQ (depth 31/32) ata7.00: configured for UDMA/133 ata7: EH complete ata8: port is slow to respond, please be patient (Status 0xd0) ata8: softreset failed (device not ready) ata8: port is slow to respond, please be patient (Status 0xd0) ata8: softreset failed (device not ready) ata8: port is slow to respond, please be patient (Status 0xd0) ata8: softreset failed (device not ready) ata8: limiting SATA link speed to 1.5 Gbps ata8: softreset failed (device not ready) ata8: reset failed, giving up Vendor: ATA Model: External Disk 0 Rev: 1.15 Type: Direct-Access ANSI SCSI revision: 05 SCSI device sdc: 976773168 512-byte hdwr sectors (500108 MB) sdc: Write Protect is off sdc: Mode Sense: 00 3a 00 00 SCSI device sdc: drive cache: write back SCSI device sdc: 976773168 512-byte hdwr sectors (500108 MB) sdc: Write Protect is off sdc: Mode Sense: 00 3a 00 00 SCSI device sdc: drive cache: write back sdc: sdc1 sdc2 sd 6:0:0:0: Attached scsi disk sdc device-mapper: uevent: version 1.0.3 # cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST3320613AS Rev: SD11 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST3320613AS Rev: SD11 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi6 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: External Disk 0 Rev: 1.15 Type: Direct-Access ANSI SCSI revision: 05 # cat /proc/interrupts CPU0 CPU1 0: 15500143 0 IO-APIC-edge timer 1: 121 7100 IO-APIC-edge i8042 6: 5 0 IO-APIC-edge floppy 8: 1 0 IO-APIC-edge rtc 9: 0 0 IO-APIC-level acpi 12: 71594 0 IO-APIC-edge i8042 66: 137498 0 IO-APIC-level ide2 74: 0 0 IO-APIC-level ehci_hcd:usb1, uhci_hcd:usb5, uhci_hcd:usb8 82: 3654 0 IO-APIC-level ehci_hcd:usb2, uhci_hcd:usb6 90: 0 0 IO-APIC-level uhci_hcd:usb4 98: 0 0 IO-APIC-level uhci_hcd:usb7 106: 7794 36161 PCI-MSI ahci 114: 16 24466 PCI-MSI eth0 122: 174 0 IO-APIC-level HDA Intel 169: 803 1038365 IO-APIC-level uhci_hcd:usb3, ahci, nvidia NMI: 365 306 LOC: 15499836 15499766 ERR: 0 MIS: 0 scsi[0-5] are the SATA channels on the ICH10R. scsi6 (ata7) is the first port on JMB363, and the connected SiI5723 is in RAID1 mode with two hard drives connected. scsi7 (ata8) is the second port on JMB363, and the connected SiI5723 has no drives. If neither SiI5723 has drives, then both ata7 and ata8 are slow to respond.