4.10-STABLE panic, twice

[Mark Cullen]

Not sure what triggered it, but it seems file system related. The second 
core dump didn't save because I forgot to move the dumpdir to /usr, it 
was something to do with ffs also though.


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This GDB was configured as "i386-unknown-freebsd"...Deprecated bfd_read 
called at 
/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c 
line 2627 in elfstab_build_psymtabs
Deprecated bfd_read called at 
/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c 
line 933 in fill_symbuf

IdlePTD at physical address 0x003ab000
initial pcb at physical address 0x00306580
panicstr: ffs_blkfree: freeing free block
panic messages:
---
panic: ffs_blkfree: freeing free block

syncing disks... 19 ad2: WRITE command timeout tag=0 serv=0 - resetting
ata1: resetting devices .. done
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
giving up on 1 buffers
Uptime: 25d22h35m26s

dumping to dev #ad/0x20001, offset 790656
dump ata0: resetting devices .. done
125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 
107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 
86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 
62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 69.82:1045 81.178.74.143:4666 in via fxp1
ad2: WRITE command timeout tag=0 serv=0 - resetting
ata1: resetting devices .. done
---
#0  dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
487             if (dumping++) {
(kgdb) bt
#0  dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
#1  0xc015ed08 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:316
#2  0xc015f13c in poweroff_wait (junk=0xc02c0620, howto=-1070856704)
     at /usr/src/sys/kern/kern_shutdown.c:595
#3  0xc022cf47 in ffs_blkfree (ip=0xc89f1e0c, bno=46208, size=16384)
     at /usr/src/sys/ufs/ffs/ffs_alloc.c:1450
#4  0xc023182e in handle_workitem_freeblocks (freeblks=0xc10dce80)
     at /usr/src/sys/ufs/ffs/ffs_softdep.c:2146
#5  0xc022fc1b in process_worklist_item (matchmnt=0x0, flags=0)
     at /usr/src/sys/ufs/ffs/ffs_softdep.c:723
#6  0xc022faaa in softdep_process_worklist (matchmnt=0x0)
     at /usr/src/sys/ufs/ffs/ffs_softdep.c:622
#7  0xc018e563 in sched_sync () at /usr/src/sys/kern/vfs_subr.c:1198
(kgdb)


FreeBSD bone.bone.servebeer.com 4.10-STABLE FreeBSD 4.10-STABLE #0: Mon 
Oct 25 04:30:06 BST 2004 
mrboo at bone2.bone.servebeer.com:/usr/obj/usr/src/sys/BONE  i386


This one happened while I was asleep. It failed to fsck ad2 afterwards, 
so it was sat in single user mode. The second panic ALSO failed to fsck 
ad2 and sat in single user mode until I ran it manually. ad2 is actually 
a laptop drive. Perhaps this is a sign the disk is on it's way out? If 
that was the case I thought it would have just gone to click of death 
mode and the system would have locked up?

Any help much appreciated. I am currently trying to update to the latest 
STABLE. In fact, the second panic happened during the first attempt at a 
make buildworld... this time around it's still running though.