hello, with .34-rc1 i see some "stalls"; systems is frozen for say 30seconds, then comes backs to life The only clue i have is strange ATA logs that I didn't have before, see below. My disk may be dying, it's 6 years old, but i shows the messages only in .34-rc1, never in .33 or .32 If the stalls are unrelated to ata, how could I debug that with perf? i got lots of 'WARNING: failed to keep up with mmap data' when using perf top.... ' thx Etienne lscpi 00:1f.2 IDE interface: Intel Corporation 82801FB/FW (ICH6/ICH6W) SATA Controller (rev 03) cat /var/log/messages Mar 9 21:13:08 etienne-desktop kernel: ata1: clearing spurious IRQ Mar 9 21:13:38 etienne-desktop kernel: ata1: lost interrupt (Status 0x50) Mar 9 21:13:38 etienne-desktop kernel: ata1: soft resetting link Mar 9 21:13:39 etienne-desktop kernel: ata1.00: configured for UDMA/133 Mar 9 21:13:39 etienne-desktop kernel: ata1.00: device reported invalid CHS sector 0 Mar 9 21:13:39 etienne-desktop kernel: ata1: EH complete Mar 9 21:19:01 etienne-desktop kernel: ata1: clearing spurious IRQ Mar 9 21:19:31 etienne-desktop kernel: ata1: lost interrupt (Status 0x50) Mar 9 21:19:31 etienne-desktop kernel: ata1: soft resetting link Mar 9 21:19:32 etienne-desktop kernel: ata1.00: configured for UDMA/133 Mar 9 21:19:32 etienne-desktop kernel: ata1.00: device reported invalid CHS sector 0 Mar 9 21:19:32 etienne-desktop kernel: ata1: EH complete dmesg libata version 3.00 loaded. ata_piix 0000:00:1f.2: version 2.13 ata_piix 0000:00:1f.2: PCI INT C -> GSI 20 (level, low) -> IRQ 20 ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ] ata_piix 0000:00:1f.2: setting latency timer to 64 scsi0 : ata_piix scsi1 : ata_piix ata1: SATA max UDMA/133 cmd 0xfe00 ctl 0xfe10 bmdma 0xfea0 irq 20 ata2: SATA max UDMA/133 cmd 0xfe20 ctl 0xfe30 bmdma 0xfea8 irq 20 ata1.00: ATA-6: ST3160023AS, 8.05, max UDMA/133 ata1.00: 312581808 sectors, multi 8: LBA48 ata1.00: configured for UDMA/133 -- 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