I'm resending this because I got no response from my previous message. The problem still exists in the released 2.2.0. [1.] One line summary of the problem: All of the 2.2.0-pre kernels that I have tried (pre[6-8]) have a serious NFS bug that causes writes to hang in some circumstances. [2.] Full description of the problem/report: At my home I have a 10baseT network, connected via cable modem to the internet, then through several routers to work. Using 2.0.36 (and previous), I regularly mount NFS servers at work and read/write files with no difficulty. However, with 2.2.0-pre8 I am unable to read or write files to those servers. However, the same machine can access servers on the local subnet at my house with no trouble. It can also access the servers at work if I carry the machine to work and plug it into the local subnet there. The specific symptoms are that the server mounts with no difficulty, and will let me interrogate it using "df", but as soon as I try to read from or write to a file on the server, the process doing so locks up and can not be killed. Once it is in this state, subsequent attempts to run "df" also hang and can't be killed, and unmounting the file system fails. I've tried two servers at my work: one running HP-UX 10.10, the other running Linux 2.0.33. Both behave identically. One possible complication, which I mention only because I don't understand its effect, is that my home subnet is connected to the cable modem through an address-translating router. The router is not a Linux box with masquerading, but a dedicated piece of hardware (a Cayman Systems 2E500). Unfortunately, I'm not able to remove the router to see what happens. FYI, here is the output of traceroute. "cph-router" is the address-translating router mentioned above. traceroute to martigny.ai.mit.edu (18.43.1.20), 30 hops max, 40 byte packets 1 cph-router.ai.mit.edu (192.168.1.254) 1.112 ms 1.012 ms 1.02 ms 2 lrrtr01-lwswt01-vlan7.ne.mediaone.net (24.128.114.1) 3.3 ms 9.537 ms 0.338 ms 3 wbrtr01-lrrtr01.ne.mediaone.net (24.128.0.89) 9.391 ms 0.34 ms 8.926 ms 4 cmrtr01-wbrtr01.ne.mediaone.net (24.128.0.29) 0.891 ms 0.34 ms 9.079 ms 5 ggrtr01-cmrtr01.ne.mediaone.net (24.128.0.130) 0.596 ms 9.442 ms 9.904 ms 6 192.5.66.34 (192.5.66.34) 0.342 ms 9.772 ms 0.333 ms 7 MIT-MEDIAONE.MIT.EDU (18.95.0.1) 9.413 ms 0.339 ms 9.115 ms 8 B24-RTR-FDDI.MIT.EDU (18.168.0.14) 9.843 ms 9.546 ms 9.894 ms 9 RADOLE.LCS.MIT.EDU (18.201.1.3) 0.34 ms 9.817 ms 9.897 ms 10 third.lcs.mit.edu (18.24.10.1) 9.847 ms 9.724 ms 9.903 ms 11 fourth.lcs.mit.edu (18.24.8.1) 9.85 ms 9.527 ms 0.402 ms 12 martigny.ai.mit.edu (18.43.1.20) 19.533 ms 9.523 ms 9.895 ms [3.] Keywords (i.e., modules, networking, kernel): networking, NFS, client [4.] Kernel version (from /proc/version): 2.2.0-pre8 [7.] Environment Debian 2.0 with all current fixes running on IBM ThinkPad 600. Networking through 3com 3CCEM556 pc card. [7.1.] Software (add the output of the ver_linux script here) -- Versions installed: (if some fields are empty or looks -- unusual then possibly you have very old versions) Linux ravna 2.2.0-pre8 #1 Wed Jan 20 00:18:16 EST 1999 i686 unknown Kernel modules 2.1.85 Gnu C 2.7.2.3 Binutils 2.9.1 Linux C Library 2.0.7 Dynamic linker ldd: version 1.9.9 Linux C++ Library 2.8.0 Procps 1.2.7 Mount 2.7l Net-tools (1998-03-02) Kbd 0.94 Sh-utils 1.16 [7.2.] Processor information (from /proc/cpuinfo): processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 5 model name : Pentium II (Deschutes) stepping : 2 cpu MHz : 298.424984 cache size : 512 KB fdiv_bug : nohlt_bug : no sep_bug : nof00f_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx osfxsr bogomips : 297.37 [7.3.] Module information (from /proc/modules): serial_cs 3848 0 (unused) 3c589_cs 6332 1 nfs 28012 5 (autoclean) ds 6288 2 [serial_cs 3c589_cs] lockd 27872 1 (autoclean) [nfs] i82365 20740 2 sunrpc 48576 1 (autoclean) [nfs lockd] pcmcia_core 32492 0 [serial_cs 3c589_cs ds i82365] snd-card-cs4236 3648 0 (unused) snd-cs4236 6080 0 [snd-card-cs4236] snd-mpu401-uart 1500 0 [snd-card-cs4236] snd-midi 14436 0 [snd-card-cs4236 snd-mpu401-uart] snd-cs4231 9764 0 [snd-card-cs4236 snd-cs4236] snd-pcm1 15228 0 [snd-cs4236 snd-cs4231] snd-mixer 13392 0 [snd-card-cs4236 snd-cs4236 snd-cs4231] snd-pcm 9168 0 [snd-card-cs4236 snd-cs4236 snd-cs4231 snd-pcm1] snd-opl3 1920 0 [snd-card-cs4236] snd-synth 1196 0 [snd-card-cs4236 snd-opl3] snd-timer 3244 0 [snd-cs4231 snd-opl3] snd 28096 0 [snd-card-cs4236 snd-mpu401-uart snd-midi snd-cs4231 snd-pcm1 snd-mixer snd-pcm snd-opl3 snd-synth snd-timer] serial 16860 0 [serial_cs] [7.4.] SCSI information (from /proc/scsi/scsi) cat: /proc/scsi/scsi: No such file or directory - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to [EMAIL PROTECTED]
