- Marcelo
On Tue, 15 Jun 1999, Jason A. Pfeil wrote:
>
>
> ----
> Jason A. Pfeil pfeil@cs.fsu.edu
> Network Administrator jpfeil@lsi.fsu.edu
> CASDL (850)644-8014; fax: (850)644-4952
> Learning Systems Institute University Center C-3519
> http://idl.fsu.edu Tallahassee, FL 32306-2540
>
> ---------- Forwarded message ----------
> Date: Mon, 14 Jun 1999 01:24:56 -0400 (EDT)
> From: Jason A. Pfeil <pfeil@cs.fsu.edu>
> To: linux-kernel@vger.rutgers.edu
> Cc: Jason A. Pfeil <pfeil@nu.cs.fsu.edu>
> Subject: cp deadlocks on large copy from SCSI zip disk under SMP (2.2.9)
>
> I have been trying to copy a large file ~49MB from a zip disk and each
> time, the file enters an uninterruptible sleep on the disk (/dev/sda4).
> The source filesystem is vfat and the destination filesystem is ext2. It
> copies fine under a nonSMP kernel. The two kernels are exactly the same
> except that one is SMP and the other is not.
>
> Here is some information that I have been able to gather:
>
> Entries in /var/log/messages
> ============================
> Jun 14 01:10:11 brunell kernel: end_scsi_request: buffer-list destroyed
> Jun 14 01:10:14 brunell last message repeated 3 times
>
> cp --version
> ============
> [root@brunell 2809]# cp --version
> cp (GNU fileutils) 4.0
>
> rpm -qf /bin/cp
> ===============
> [root@brunell 2809]# rpm -qf /bin/cp
> fileutils-4.0-1
>
> RedHat 6.0 is the Distro.
>
> uname -a
> ========
> [root@brunell 2809]# uname -a
> Linux brunell.jaguars.jap.org 2.2.9 #2 SMP Wed Jun 2 21:29:05 EDT 1999
> i686 unknown
>
> /proc filesystem stuff from the PID's entry
> ===========================================
> [root@brunell 2809]# cat status
> Name: cp
> State: D (disk sleep)
> Pid: 2809
> PPid: 2786
> Uid: 0 0 0 0
> Gid: 0 0 0 0
> Groups: 0 1 2 3 4 6 10
> VmSize: 1072 kB
> VmLck: 0 kB
> VmRSS: 340 kB
> VmData: 16 kB
> VmStk: 8 kB
> VmExe: 28 kB
> VmLib: 992 kB
> SigPnd: 0000000000000107
> SigBlk: 0000000000000000
> SigIgn: 0000000000000000
> SigCgt: 0000000000000000
> CapInh: 00000000fffffeff
> CapPrm: 00000000fffffeff
> CapEff: 00000000fffffeff
>
> [root@brunell 2809]# cat cpu
> cpu 1 21
> cpu0 0 10
> cpu1 1 11
>
> [root@brunell 2809]# cat cwd
> cat: cwd: Is a directory
> [root@brunell 2809]# ls -ld cwd
> lrwx------ 1 root root 0 Jun 14 01:20 cwd -> /root
>
> [root@brunell 2809]# cat fd
> cat: fd: Invalid argument
> [root@brunell 2809]# ls -l fd
> total 0
> lrwx------ 1 root root 64 Jun 14 01:20 0 -> /dev/pts/2
> lrwx------ 1 root root 64 Jun 14 01:20 1 -> /dev/pts/2
> lrwx------ 1 root root 64 Jun 14 01:20 2 -> /dev/pts/2
> lr-x------ 1 root root 64 Jun 14 01:20 3 ->/mnt/zip/R4_5-x86.zip
> l-wx------ 1 root root 64 Jun 14 01:20 4 ->/tmp/R4_5-x86.zip
>
> [root@brunell 2809]# cat maps
> 08048000-0804f000 r-xp 00000000 03:41 26528 /bin/cp
> 0804f000-08050000 rw-p 00006000 03:41 26528 /bin/cp
> 40000000-40012000 r-xp 00000000 03:41 32642 /lib/ld-2.1.1.so
> 40012000-40013000 rw-p 00011000 03:41 32642 /lib/ld-2.1.1.so
> 40013000-40014000 rwxp 00000000 00:00 0
> 40019000-400ff000 r-xp 00000000 03:41 32649 /lib/libc-2.1.1.so
> 400ff000-40104000 rw-p 000e5000 03:41 32649 /lib/libc-2.1.1.so
> 40104000-40107000 rw-p 00000000 00:00 0
> bfffe000-c0000000 rwxp fffff000 00:00 0
>
> [root@brunell 2809]# cat stat
> 2809 (cp) D 2786 2809 2781 0 -1 0 13 0 1670 0 1 21 0 0 0 0 0 0 11201450
> 1097728 85 2147483647 134512640 134537664 3221224784 3221219404 1074509108
> 263 0 0 0 3222405809 0 0 17 0
>
> [root@brunell 2809]# cat statm
> 85 85 72 7 0 78 13
>
> Attached, please find the System.map file for the kernel in question. The
> driver being used is the aha152x driver with the following append line in
> /etc/lilo.conf: append="aha152x=0x140,11,7,1"
>
> Thank you for your help.
>
> ----
> Jason A. Pfeil pfeil@cs.fsu.edu
> Network Administrator jpfeil@lsi.fsu.edu
> CASDL (850)644-8014; fax: (850)644-4952
> Learning Systems Institute University Center C-3519
> http://idl.fsu.edu Tallahassee, FL 32306-2540
>
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