Package: linux-image-2.6.26-1-686 Version: 2.6.26-13lenny2 Severity: normal File: /boot/vmlinuz-2.6.26-1-686
I'm not sure how reproducible this is. I use the automounter to automount /net/tesla/whatever, and so on. I think I got NFS confused by changing the exports on tesla without unmounting from llama first. Anyway, I was in one of those nfs-is-stuck-and-I-need-to-umount situations. I ran sudo umount -f /net/tesla/usr & sudo umount -f /net/tesla/home & sudo umount -f /net/tesla/var/tmp & At least one of these mounts shouldn't have had any open files, but I wasn't able to check for sure because lsof blocks on broken NFS mounts. When none of those umounts exitted for several minutes, I ran sudo umount -l -f /net/tesla/var/tmp & sudo umount -l -f /net/tesla/usr & Within seconds of doing that, _local_ file access started to break. Anything I tried to run hung. e.g. ls didn't return. (I was CDed to a directory in /mnt/large, an ext3 filesystem on a local disk.) The machine wasn't totally locked, though. I was able to fg a vi process, and have it prompt that a file on disk was newer, and then exit cleanly (and this was over SSH). So user-space (and apparently even the VFS) wasn't entirely screwed, but there were major problems. I eventually had to alt+sysrq s, u, b to reboot. Does umount -l need to check if there's already a umount attempt going on? The only thing out of the ordinary that I did was umount -l -f while a umount -f was stuck on the same filesystem. Machine hardware: PIII 500MHz, 440BX chipset, 512MB. tulip NICs. This HW has been stable for ~10 years. :) -- Package-specific info: ** Version: Linux version 2.6.26-1-686 (Debian 2.6.26-13lenny2) (da...@debian.org) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 SMP Fri Mar 13 18:08:45 UTC 2009 ** Command line: root=/dev/md0 lapic ro ** Not tainted ** Loaded modules: Module Size Used by autofs4 16420 1 nfsd 186704 17 auth_rpcgss 33952 1 nfsd exportfs 3904 1 nfsd nfs 213896 5 lockd 54248 2 nfsd,nfs nfs_acl 2912 2 nfsd,nfs sunrpc 162144 26 nfsd,auth_rpcgss,nfs,lockd,nfs_acl ipt_REJECT 2784 1 xt_tcpudp 2816 16 xt_state 2016 1 nf_nat_irc 2080 0 nf_conntrack_irc 5124 1 nf_nat_irc nf_conntrack_ftp 6852 0 ipt_MASQUERADE 2592 1 iptable_nat 4680 1 nf_nat 15576 3 nf_nat_irc,ipt_MASQUERADE,iptable_nat nf_conntrack_ipv4 12268 4 iptable_nat,nf_nat nf_conntrack 55508 8 xt_state,nf_nat_irc,nf_conntrack_irc,nf_conntrack_ftp,ipt_MASQUERADE,iptable_nat,nf_nat,nf_conntrack_ipv4 iptable_filter 2624 1 ip_tables 10160 2 iptable_nat,iptable_filter x_tables 13284 6 ipt_REJECT,xt_tcpudp,xt_state,ipt_MASQUERADE,iptable_nat,ip_tables dm_snapshot 14340 0 dm_mirror 15104 0 dm_log 8452 1 dm_mirror dm_mod 46184 3 dm_snapshot,dm_mirror,dm_log ipv6 235300 26 button 6096 0 serio_raw 4740 0 snd_pcm 62596 0 psmouse 32336 0 i2c_piix4 7216 0 snd_timer 17800 1 snd_pcm i2c_core 19828 1 i2c_piix4 snd 45604 2 snd_pcm,snd_timer soundcore 6368 1 snd shpchp 25528 0 pci_hotplug 23460 1 shpchp snd_page_alloc 7816 1 snd_pcm intel_agp 22332 1 agpgart 28776 1 intel_agp pcspkr 2432 0 evdev 8000 0 ext3 105512 4 jbd 39444 1 ext3 mbcache 7108 1 ext3 raid1 18016 3 md_mod 67036 4 raid1 usbhid 35904 1 hid 33184 1 usbhid ff_memless 4392 1 usbhid ide_disk 10496 10 ata_generic 4676 0 libata 140384 1 ata_generic scsi_mod 129356 1 libata dock 8304 1 libata uhci_hcd 18672 0 piix 6568 0 [permanent] ide_pci_generic 3908 0 [permanent] tulip 44064 0 usbcore 118160 4 usbhid,uhci_hcd ide_core 96168 3 ide_disk,piix,ide_pci_generic thermal 15228 0 processor 32576 2 thermal fan 4164 0 thermal_sys 10856 3 thermal,processor,fan -- System Information: Debian Release: 5.0 APT prefers stable APT policy: (990, 'stable') Architecture: i386 (i686) Kernel: Linux 2.6.26-1-686 (SMP w/1 CPU core) Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Shell: /bin/sh linked to /bin/bash Versions of packages linux-image-2.6.26-1-686 depends on: ii debconf [debconf-2.0] 1.5.24 Debian configuration management sy ii initramfs-tools [linux-initra 0.92o tools for generating an initramfs ii module-init-tools 3.4-1 tools for managing Linux kernel mo Versions of packages linux-image-2.6.26-1-686 recommends: ii libc6-i686 2.7-18 GNU C Library: Shared libraries [i Versions of packages linux-image-2.6.26-1-686 suggests: ii grub 0.97-47lenny2 GRand Unified Bootloader (Legacy v pn linux-doc-2.6.26 <none> (no description available) -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org