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[Bug uprobes/9828] New: A uprobe probepoint hit may result in a lockdep warning message


With CONFIG_LOCKDEP configured, the first time after boot that a uprobes
probepoint is hit, lockdep_sys_exit() reports:
kernel: [ BUG: lock held when returning to user space! ]
kernel: ------------------------------------------------ 
kernel: bash/6578 is leaving the kernel with locks still held!
kernel: 2 locks held by bash/6578:
kernel:  #0:  (&uproc->rwsem){----}, at: [<c0103641>]
uprobe_report_signal+0x1d1/0x7f3
kernel:  #1:  (&slot->rwsem){--..}, at: [<c0103db5>]
uprobe_find_insn_slot+0x152/0x1de

-- 
           Summary: A uprobe probepoint hit may result in a lockdep warning
                    message
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: uprobes
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: srikar at linux dot vnet dot ibm dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=9828

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