>Number:         9067
>Category:       kern
>Synopsis:       LFS panics in 1.4.2_ALPHA while building world
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people (Kernel Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Dec 28 11:42:00 1999
>Last-Modified:
>Originator:     Charlie Root
>Organization:
	
>Release:        1.4.2_ALPHA<NetBSD-current source date>
>Environment:
	
NetBSD giauzar 1.4.2_ALPHA NetBSD 1.4.2_ALPHA (GIAUZAR) #1: Fri Dec 24 17:25:12 MST 1999     root@giauzar:/usr/src/1.4.2/syssrc/sys/arch/alpha/compile/GIAUZAR alpha


>Description:

While doing a make build:
/build/tools/usr/bin/cc -B/build/tools/usr/libexec/   -o uuconv -nostdlib -L/build/root/usr/lib /build/root/usr/lib/crt0.o /build/root/usr/lib/crtbegin.o uuconv.o /build/src/gnu/libexec/uucp/libunix/obj.alpha/libunix.a /build/src/gnu/libexec/uucp/libuuconf/obj.alpha/libuuconf.a /build/src/gnu/libexec/uucp/libuucp/obj.alpha/libuucp.a -lgcc -lc -lgcc /build/root/usr/lib/crtend.o
dependall ===> gnu/libexec/uucp/uucp

The following occurred:

lfs_fastvget: ino 174868 inlocked by pid 5367
lfs_fastvget: ino 174868 inlocked by pid 5367
lfs_fastvget: ino 174868 inlocked by pid 11462
lfs_fastvget: ino 174868 inlocked by pid 11462
lfs_fastvget: ino 174868 inlocked by pid 13074
lfs_fastvget: ino 174868 inlocked by pid 13074
lfs_fastvget: ino 174868 inlocked by pid 13074
Warning: received processor correctable error.
Warning: received processor correctable error.
lfs_fastvget: ino 91665 inlocked by pid 16342
lfs_fastvget: ino 174868 inlocked by pid 16772
Warning: received processor correctable error.
Warning: received processor correctable error.
lfs_fastvget: ino 174868 inlocked by pid 9554
lfs_fastvget: ino 174868 inlocked by pid 11128
lfs_fastvget: ino 174868 inlocked by pid 11128
lfs_fastvget: ino 174868 inlocked by pid 11128
lfs_fastvget: ino 42537 inlocked by pid 13011
Warning: received processor correctable error.
lfs_fastvget: ino 174868 inlocked by pid 16386
lfs_fastvget: ino 174868 inlocked by pid 16386
lfs_fastvget: ino 174868 inlocked by pid 16386
lfs_fastvget: ino 174868 inlocked by pid 16386
lfs_fastvget: ino 65103 inlocked by pid 16875
panic: lfs_nextseg: no clean segments
Stopped in lfs_cleanerd at      Debugger+0x4:   ret     zero,(ra)

ps shows the following lfs related states:
 20081            359      20081          0 3  0x4006             tail lfsinod
>How-To-Repeat:

Unsure..  Activity on the disk seems to eventually trigger this.
	
>Fix:
I wish I had one..
	
>Audit-Trail:
>Unformatted:
>115              113        113          0 2     0x4     lfs_cleanerd
 113                1        113          0 3    0x84     lfs_cleanerd    wait
db> c
syncing disks... 
fatal kernel trap:

    trap entry = 0x2 (memory management fault)
    a0         = 0x0
    a1         = 0x1
    a2         = 0x0
    pc         = 0xfffffc00004f4538
    ra         = 0xfffffc0000468b08
    curproc    = 0xfffffc0002491310
        pid = 115, comm = lfs_cleanerd

panic: trap
Stopped in lfs_cleanerd at      Debugger+0x4:   ret     zero,(ra)
db> 

after performing the dump:


sd12: WARNING: cache synchronization failed
sd11: WARNING: cache synchronization failed
rebooting...

Random information:

This disk is a ccd, and the LFS portion is about 4g.  There was about 3g free
on the LFS when this panic occurred.  sd11 and sd12 are the ccd components,
and are wide diff drives on a BHA-958D controller.

/dev/ccd0d    3994624  3330216   264946    92%    /build

Hrmm.. actually.. I have no idea what is taking up all that space in there..
and now.. attempts to cd into that FS lock the terminal up.  Whatever happened
to that FS, was fatal.

    0   114     1  25  10  0    88  512 wait   Is   ??    0:00.00 /usr/libexec/l
fs_cleanerd /build 
    0   115   114   9  -5  0  5432 4184 lfs se D    ??    0:00.07 /usr/libexec/l
fs_cleanerd /build 
    0   201     1   0 -14  0   640  288 lfsino D    p0-   0:00.00 mount -a 
    0   205     1   0 -14  0  1024  488 lfsino Ds+  p1    0:00.03 -csh 
    0   116     1  12  -5  0   112   56 lfs_av D    C0-   0:00.00 mount_ffs /dev
/ccd0e /build/root