Patch-ID# 101626-01
Keywords: panic deadlock tmpfs
Synopsis: SunOS 5.2: panic: Deadlock condition detected: cycle in blocking chain
Date: Mar/21/94

Solaris Release: 2.2

SunOS release: 5.2

Unbundled Product:

Unbundled Release:

Topic: SunOS 5.2: panic: Deadlock condition detected: cycle in blocking chain

BugId's fixed with this patch: 1127738

Changes incorporated in this version:

Relevant Architectures: sparc

Patches accumulated and obsoleted by this patch:

Patches which conflict with this patch:

Patches required with this patch:

Obsoleted by:

Files included with this patch:

/kernel/fs/tmpfs

Problem Description:

1127738 panic: Deadlock condition detected: cycle in blocking chain.

Trying to rename a directory to sit below itself, will cause a 
deadlock-induced panic on tmpfs filesystems. This can be produced
by the command
mv a a
where a is an existing directory on a tmpfs filesystem.

Patch Installation Instructions:
--------------------------------
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Other specific or unique installation instructions may also be
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Special Install Instructions:
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