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Cisco Bug: CSCul00037 - paloi2c paloi2c.0: target 0x70: split-transaction-stop error on VICs in B200M3 Servers

Last Modified

Jan 25, 2019

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

2.1(1f)A

Description (partial)

Symptom:
B200 M3 Servers running UCS Code pre-2.1(2c)
VIC: 1240

Below messages are repeatedly logged in mezz obfl/syslog:
130927-06:41:35.436239 bootoptd.i2carb ERROR: Failed to acquire I2C bus (err -2)
130927-06:41:35.437000 mqlogd kernel: [666192.096000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error
130927-06:41:35.437274 mqlogd kernel: [666192.096000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error
130927-06:43:35.449713 mqlogd kernel: [666312.110000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error
130927-06:45:35.470720 mqlogd kernel: [666432.131000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error
130927-06:45:35.471829 mqlogd kernel: [666432.132000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error
130927-06:47:35.492718 mqlogd kernel: [666552.153000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error
130927-06:47:35.493823 mqlogd kernel: [666552.154000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error
130927-06:47:35.494857 mqlogd kernel: [666552.155000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error
130927-06:47:35.495126 bootoptd.i2carb ERROR: Failed to acquire I2C bus (err -2)
130927-06:48:35.498717 mqlogd kernel: [666612.159000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error
130927-06:48:35.499828 mqlogd kernel: [666612.160000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error
130927-06:48:35.500865 mqlogd kernel: [666612.161000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error
130927-06:48:35.501138 bootoptd.i2carb ERROR: Failed to acquire I2C bus (err -2)

Conditions:
Under heavy IO.
Blade's CPU and Memory utilization is ~80% - 90%.

Related Community Discussions

UCS. Split-transaction-stop errors on B200-M3, VIC 1240, blade
MEZZ\obfl\syslog:  Log completely full of hundreds of the following messages:     151214-07:02:16.294414 kernel: [2131724.390000] paloi2c paloi2c.0: target 0x70: split-transaction-stop error For every dozen or so of the above messages, one of the following is received:     151214-07:10:16.719172 bootoptd.i2carb ERROR: Failed to acquire I2C bus (err -2) Frequency of messages vary with CPU load.  When load is heaviest, messages run about a dozen per minute.  CPU load hasn't exceeded 40% in at least ...
Latest activity: Mar 16, 2016
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