Bug#441143: linux-image-2.6.21-2-vserver-sparc64: Vserver unaligned access regression
Package: linux-image-2.6.21-2-vserver-sparc64
Version: 2.6.21-5
Severity: normal
Booting 2.6.21-2-vserver-sparc64 will not start vservers with dlimits in
place, complaining "vdu: readdir(): Bad address" (meaning a return of
EFAULT). Further, vserver-stat produces its header but no servers,
despite that servers without dlimits were successfully started by the
init scripts.
Some stracing makes it look like the root cause is a getdents64() call
with its data pointer only aligned mod 4, not mod 8. However, booting
2.6.18-4-vserver-sparc64 works but gives a host of dmesg output like
Kernel unaligned access at TPC[4b72d0] filldir64+0x54/0x134
Kernel unaligned access at TPC[4b72ec] filldir64+0x70/0x134
Kernel unaligned access at TPC[4b72b8] filldir64+0x3c/0x134
when starting vservers. Despite these warnings it _works_, which is
key. This bug may be inappropriately filed -- I have no idea if the
important package is the kernel, glibc, or util-vserver, though from a
bit of code groveling I'd bet against the latter.
Requesting the attention of some guru. Thanks much.
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: sparc (sparc64)
Kernel: Linux 2.6.18-4-vserver-sparc64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages linux-image-2.6.21-2-vserver-sparc64 depends on:
ii coreutils 5.97-5.4 The GNU core utilities
ii debconf [debconf-2.0] 1.5.14 Debian configuration management sy
ii initramfs-tools [linux-initr 0.90a tools for generating an initramfs
ii module-init-tools 3.3-pre11-4 tools for managing Linux kernel mo
Versions of packages linux-image-2.6.21-2-vserver-sparc64 recommends:
ii libc6-sparc64 2.6.1-2 GNU C Library: 64bit Shared librar
ii util-vserver 0.30.213-1 user-space tools for Linux-VServer
-- debconf information excluded
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