> On 23 Jan 2015, at 12:42 am, William H. Magill <mag...@mac.com> wrote: > >>> I cannot explain why a (normally) rational, sane thinking idiot did not >>> make that his first port of call (beautifully synced) >>> >>> Jan 21 00:04:34 haycorn kernel[0]: disk0s2: I/O error. >>> >>> Thanks everybody, and sorry for being an idiot >> >> I wouldn't immediately think about disk i/o errors either from the symptoms >> you described (not for short freezes in anyway). Not with an hdd anyway. >> What's in your logs around those I/O error messages, and what do the >> smartmontools (in MacPorts) tell about the disk's health? smartctl -a >> /dev/disk0 and do run smartctl -t long /dev/disk0 (disabling disk spin down >> for the duration of the test as that would interrupt it)? >> >> A bit too many reports of comparable symptoms in 10.9 somehow related to >> disk I/O errors for my comfort zone. OS X wouldn't be doing something low >> level that somehow stresses the disk hardware I hope?
I confess to bias suspecting yosemite before anything else! smartctl -a gives zillions of errors eg SMART Attributes Data Structure revision number: 10 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000e 078 077 006 Old_age Always - 183829319 3 Spin_Up_Time 0x0003 100 100 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 099 099 020 Old_age Always - 1749 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 081 060 030 Pre-fail Always - 147598082 9 Power_On_Hours 0x0032 078 078 000 Old_age Always - 19827 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 099 099 020 Old_age Always - 1505 184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0 187 Reported_Uncorrect 0x0032 001 001 000 Old_age Always - 34330 188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0 189 High_Fly_Writes 0x003a 099 099 000 Old_age Always - 1 190 Airflow_Temperature_Cel 0x0022 058 040 045 Old_age Always In_the_past 42 (3 248 42 24 0) 194 Temperature_Celsius 0x0022 042 060 000 Old_age Always - 42 (0 16 0 0 0) 195 Hardware_ECC_Recovered 0x001a 038 025 000 Old_age Always - 183829319 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 2 198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 2 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0 James _______________________________________________ macports-users mailing list macports-users@lists.macosforge.org https://lists.macosforge.org/mailman/listinfo/macports-users