On Thu, Jul 25, 2002 at 09:28:10PM +0300, Jari Ruusu wrote: > Richard Zidlicky wrote: > > I am getting repeatable deadlocks using 2.4.18, loop-AES-v1.6e > > and ciphers-v1.0e.tar.bz2. > [snip] > > Next I have copied 240 MB random files to the fresh filesystem > > and bdflush as well as kupdated entered 'D' state, a few other > > processes that were active at that time entered the 'T' state > > All files have been apparently correctly copied over, can be > > accessed and everything else works quite well except that every > > (f)sync hangs - a few hours later the system is still usable.. > > > > I am running automount and knfsd which did nothing at that time. > > > > Any idea? > > Did you change kernel .config between compiling your running kernel and > compiling loop.o + loop_serpent.o modules? Compiling a module and rest of > kernel with different .config is almost guaranteed to cause trouble. Both are freshly recompiled. Tried without kernel automounter and without knfsd, same result. Realised one more thing, I run with IDE multcount=16 and 'hdparm -u1', did you ever test with similar options? Richard ### /etc/sysconfig/harddisks ## # These options are used to tune the hard drives - # read the hdparm man page for more information # Set this to 1 to enable DMA. This might cause some # data corruption on certain chipset / hard drive # combinations. This is used with the "-d" option # USE_DMA=1 # Multiple sector I/O. a feature of most modern IDE hard drives, # permitting the transfer of multiple sectors per I/O interrupt, # rather than the usual one sector per interrupt. When this feature # is enabled, it typically reduces operating system overhead for disk # I/O by 30-50%. On many systems, it also provides increased data # throughput of anywhere from 5% to 50%. Some drives, however (most # notably the WD Caviar series), seem to run slower with multiple mode # enabled. Under rare circumstances, such failures can result in # massive filesystem corruption. USE WITH CAUTION AND BACKUP. # This is the sector count for multiple sector I/O - the "-m" option MULTIPLE_IO=16 # (E)IDE 32-bit I/O support (to interface card) # # EIDE_32BIT=3 # Enable drive read-lookahead # # LOOKAHEAD=1 # Add extra parameters here if wanted # On reasonably new hardware, you may want to try -X66, -X67 or -X68 # Other flags you might want to experiment with are -u1, -a and -m # See the hdparm manpage (man hdparm) for details and more options. # EXTRA_PARAMS=-u1 - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/
