Package: uswsusp Version: 0.6~cvs20070202-1 Severity: important s2disk does not mark (software) raid arrays as clean when shutting down the machine. On the next bootup, the mdadm support in the initrd starts up the arrays and, finding them dirty, starts a background reconstruction.
When, afterwards, uswsusp tries to resume, after properly finding and loading the resume image, it fails to freeze the raid resync process. Thus, the resume fails and normal boot up continues. This is a snip from /var/log/kern.log -------------------------------------------------------- Mar 19 08:52:40 lisa kernel: md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27 Mar 19 08:52:40 lisa kernel: md: bitmap version 4.39 Mar 19 08:52:40 lisa kernel: md: raid1 personality registered for level 1 Mar 19 08:52:40 lisa kernel: usb 1-1: new low speed USB device using uhci_hcd and address 3 Mar 19 08:52:40 lisa kernel: md: md1 stopped. Mar 19 08:52:40 lisa kernel: md: bind<hda3> Mar 19 08:52:40 lisa kernel: md: bind<hde3> Mar 19 08:52:40 lisa kernel: raid1: raid set md1 active with 2 out of 2 mirrors Mar 19 08:52:40 lisa kernel: md: md2 stopped. Mar 19 08:52:40 lisa kernel: md: bind<hda4> Mar 19 08:52:40 lisa kernel: md: bind<hde4> Mar 19 08:52:40 lisa kernel: md: md2: raid array is not clean -- starting background reconstruction Mar 19 08:52:40 lisa kernel: usb 1-1: configuration #1 chosen from 1 choice Mar 19 08:52:40 lisa kernel: raid1: raid set md2 active with 2 out of 2 mirrors Mar 19 08:52:40 lisa kernel: md: syncing RAID array md2 Mar 19 08:52:40 lisa kernel: md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. Mar 19 08:52:40 lisa kernel: md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction. Mar 19 08:52:40 lisa kernel: md: using 128k window, over a total of 77551424 blocks. Mar 19 08:52:40 lisa kernel: input: KYE Genius USB Wheel Mouse as /class/input/input2 Mar 19 08:52:40 lisa kernel: input: USB HID v1.00 Mouse [KYE Genius USB Wheel Mouse] on usb-0000:00:10.0-1 Mar 19 08:52:40 lisa kernel: device-mapper: ioctl: 4.7.0-ioctl (2006-06-24) initialised: [EMAIL PROTECTED] Mar 19 08:52:40 lisa kernel: Freezing cpus ... Mar 19 08:52:40 lisa kernel: Stopping tasks: ========== Mar 19 08:52:40 lisa kernel: stopping tasks timed out after 20 seconds (1 tasks remaining): Mar 19 08:52:40 lisa kernel: md2_resync Mar 19 08:52:40 lisa kernel: Restarting tasks...<6> Strange, md2_resync not stopped Mar 19 08:52:40 lisa kernel: done Mar 19 08:52:40 lisa kernel: Thawing cpus ... -------------------------------------------------------- This makes uswsusp completely unusable for me. I tried testing from single user mode, with all my filesystems unmounted or mounted read-only. As suspend/resume worked properly in that case, I think configuration problems can be ruled out. As can be seen from the log snippet, this system has two raid arrays. md1, which contains my / filesystem, does not seem to be affected by this problem. md2 is used as physical volume for lvm. It might be that this interaction is what's causing the problem. I assume this could be worked around by moving the resume code earlier in the bootup sequence, before the starting of raid arrays, but that would break resume for people whose resume partition is in one (not that I think they can actually use this right now). Other possible solution would be to mark arrays as clean on shutdown, but I assume that'd be the kernel's work. Before installing uswsusp I used to properly resume/suspend by simply doing /bin/echo shutdown > /sys/power/disk; /bin/echo disk > /sys/power/state from some custom rolled scripts, on the very same lvm-over-raid configuration, with a custom built 2.6.17 kernel. -- System Information: Debian Release: 4.0 APT prefers testing APT policy: (500, 'testing'), (400, 'unstable') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.18-3-k7 Locale: LANG=es_MX, LC_CTYPE=es_MX (charmap=ISO-8859-1) Versions of packages uswsusp depends on: ii debconf [debconf-2.0] 1.5.11 Debian configuration management sy ii libc6 2.3.6.ds1-13 GNU C Library: Shared libraries ii libgcc1 1:4.1.1-21 GCC support library ii libgcrypt11 1.2.3-2 LGPL Crypto library - runtime libr ii libgpg-error0 1.4-1 library for common error values an ii libsplashy0 0.3.2 Library to draw splash screen on b ii zlib1g 1:1.2.3-13 compression library - runtime Versions of packages uswsusp recommends: ii initramfs-tools 0.85f tools for generating an initramfs ii mount 2.12r-19 Tools for mounting and manipulatin -- debconf information: * uswsusp/suspend_loglevel: uswsusp/no_swap: uswsusp/resume_offset: * uswsusp/early_writeout: true * uswsusp/image_size: 120838717 * uswsusp/snapshot_device: * uswsusp/max_loglevel: uswsusp/shutdown_method: platform * uswsusp/encrypt: true * uswsusp/RSA_key_bits: 1024 * uswsusp/continue_without_swap: true * uswsusp/compute_checksum: true uswsusp/no_snapshot: * uswsusp/compress: true * uswsusp/create_RSA_key: false * uswsusp/RSA_key_file: /etc/uswsusp.key * uswsusp/resume_device: /dev/hde2 uswsusp/splash: false
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