#8980: Haiku hrevr1alpha4-44595 KDL: _mutex_lock(): double lock of 0x8019e000 by thread 15 ------------------------+------------------------------ Reporter: simonsouth | Owner: nobody Type: bug | Status: new Priority: normal | Milestone: R1 Component: - General | Version: R1/Development Keywords: | Blocked By: Blocking: | Has a Patch: 0 Platform: All | ------------------------+------------------------------ While using hrev1alpha4-44596 on my [http://support.acer.com/acerpanam/netbook/0000/Acer/AspireOneAOD250/AspireOneAOD250sp2.shtml Acer AOD250 netbook] the KDL shown in the attached screenshot happened several times. Nothing specific seemed to trigger it, although I happened to be typing in Terminal each time it occurred. Continuing from the debugger appeared to work but (for example) trying to close applications made them seem to hang, and in each case I had to reboot to keep working. The first part of the text in the screenshot reads: {{{ PANIC: _mutex_lock(): double lock of 0x8019e000 by thread 15 Welcome to Kernel Debugging Land... Thread 15 "block notifier/writer" running on CPU 0 stack trace for thread 15 "block notifier/writer" kernel stack: 0x81199000 to 0x8119d000 }}} -- Ticket URL: <http://dev.haiku-os.org/ticket/8980> Haiku <http://dev.haiku-os.org> Haiku - the operating system.