[Owfs-developers] owfs 2.8p1 segfault triggered by updatedb

[Eloy P. <pe...@ch...>]

Hello,

The owfs process is crashing for me everyday at 6:25 AM. Turns out that 
the crash is triggered by updatedb, which gets kicked off daily around 
6:25 AM by cron to update the locate database.

I've worked around the problem by telling updatedb not to go into the 
owfs-mounted directory but I thought I'd report the problem in case 
someone wants to tackle the root cause to prevent the crash in the first 
place.

I am including below a backtrace, and I am happy to run further tests or 
try any possible fixes. This is completely reproducible for me, though.

Cheers,

Eloy Paris.-

------------------------------------------------------

(gdb) where
#0  0x00000000 in ?? ()
#1  0xb76af543 in BUS_reset (pn=0xb5a12098) at ow_reset.c:23
#2  0xb76b3b90 in BUS_select_closing (pn=<value optimized out>) at 
ow_select.c:154
#3  0xb76b3f7f in BUS_select (pn=0xb5a12098) at ow_select.c:78
#4  0xb76b7b98 in BUS_transaction_single (t=<value optimized out>, 
pn=0x0) at ow_transaction.c:83
#5  0xb76b827c in BUS_transaction_nolock (tl=0xb6c21938, pn=0xb5a12098) 
at ow_transaction.c:68
#6  0xb76b84b0 in BUS_transaction (tl=0xb6c21938, pn=0xb5a12098) at 
ow_transaction.c:51
#7  0xb768902d in OW_type (owq=0xb5a12080) at ow_bae.c:769
#8  FS_type_state (owq=0xb5a12080) at ow_bae.c:524
#9  0xb76acc71 in FS_read_lump (owq=0xb5a12080) at ow_read.c:512
#10 0xb76ad34d in FS_r_local (owq=0xb5a12080) at ow_read.c:460
#11 0xb76b4b4a in FS_r_sibling_U (U=0xb6c21c5c, sibling=0xb76c32c6 
"typestate", owq=0xb5a12008)
     at ow_sibling_uint.c:54
#12 0xb7689cca in FS_type_device (owq=0xb5a12008) at ow_bae.c:548
#13 0xb76acc71 in FS_read_lump (owq=0xb5a12008) at ow_read.c:512
#14 0xb76ad34d in FS_r_local (owq=0xb5a12008) at ow_read.c:460
#15 0xb76b4b4a in FS_r_sibling_U (U=0xb6c21f28, sibling=0xb76c32dd 
"device_type", owq=0xb5a11f18)
     at ow_sibling_uint.c:54
#16 0xb7689e11 in VISIBLE_BAE (pn=0xb6c220c0) at ow_bae.c:296
#17 VISIBLE_910 (pn=0xb6c220c0) at ow_bae.c:318
#18 0xb7692c30 in FS_devdir (dirfunc=<value optimized out>, v=<value 
optimized out>, pn_raw_directory=0xb6c220c0,
     flags=0xb6c2206c) at ow_dir.c:376
#19 FS_dir_both (dirfunc=<value optimized out>, v=<value optimized out>, 
pn_raw_directory=0xb6c220c0,
     flags=0xb6c2206c) at ow_dir.c:124
#20 0xb769368f in FS_dir (dirfunc=0x80496d0 <FS_getdir_callback>, 
v=0xb6c220b8, pn_directory=0xb6c220c0)
     at ow_dir.c:65
#21 0x0804966b in FS_getdir (path=0xb5a14138 "/structure/FC/910", 
h=0xb6c22168, filler=0xb762f6d0)
     at owfs_callback.c:186
#22 0xb762c3d0 in fuse_fs_readdir () from /lib/libfuse.so.2
#23 0xb7632d26 in ?? () from /lib/libfuse.so.2
#24 0xb7638e67 in ?? () from /lib/libfuse.so.2
#25 0xb76377ba in ?? () from /lib/libfuse.so.2
---Type <return> to continue, or q <return> to quit---
#26 0xb763a976 in fuse_session_process () from /lib/libfuse.so.2
#27 0xb7635dd3 in ?? () from /lib/libfuse.so.2
#28 0xb75d596e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#29 0xb7542a4e in clone () from /lib/tls/i686/cmov/libc.so.6