Bug 210206 - systat -vm: ignore feature does not work correctly
Summary: systat -vm: ignore feature does not work correctly
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: bin (show other bugs)
Version: 10.3-RELEASE
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-bugs mailing list
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-06-11 09:20 UTC by Martin Birgmeier
Modified: 2016-06-11 09:20 UTC (History)
0 users

See Also:


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description Martin Birgmeier 2016-06-11 09:20:11 UTC
Scenario:
- 7 SATA disks ada{0..6}
- md0 on /tmp
- heavy disk activity on ada6;
  in another scenario, heavy disk activity on all disks
- running "systat -vm 1"
- typing ":ignore md0"

Result:
- Before typing ":ignore md0": systat displays drives md0 and ada0..ada5
- After typing ":ignore md0": systat once displays drives ada0..ada6 and then displays only drive md0

Expected result:
- Before typing ":ignore md0": systat displays drives md0 and ada0..ada5
- After typing ":ignore md0": systat displays drives ada0..ada6

Notes:
- The "ignore" feature seems to be very fragile in many situations. The scenario described is just one where it misbehaves and ultimately displays completely different disks.
- The feature seems to be sensitive to dynamic changes in the disk configuration. Adding or removing devices typically garbles the selection.