[bug #32755] tmpfs crashes on filling an empty file

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?32755>

                 Summary: tmpfs crashes on filling an empty file
                 Project: The GNU Hurd
            Submitted by: None
            Submitted on: sam. 12 mars 2011 12:03:39 UTC
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
         Reproducibility: None
              Size (loc): None
         Planned Release: None
                  Effort: 0.00
Wiki-like text discussion box: 

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Details:

Hello,

$ settrans -c foo /hurd/tmpfs 1M
$ cd foo
$ touch bar
$ echo baz > bar
Resource lost

gdb shows:

#7  0x01127011 in __assert_perror_fail (errnum=17, 
    file=0x804df88
"/home/buildd/build/chroot-sid/home/buildd/byhand/hurd/./tmpfs/node.c",
line=519, function=0x804df1f "diskfs_get_filemap")
    at assert-perr.c:80
#8  0x0804afa6 in diskfs_get_filemap (np=0x80577b8, prot=1)
    at
/home/buildd/build/chroot-sid/home/buildd/byhand/hurd/./tmpfs/node.c:519
#9  0x0105d247 in _diskfs_rdwr_internal (np=0x80577b8, data=0x134deac "", 
    offset=<value optimized out>, amt=0x134bd60, dir=0, notime=0)
    at
/home/buildd/build/chroot-sid/home/buildd/byhand/hurd/./libdiskfs/rdwr-internal.c:56
#10 0x01057ba5 in diskfs_S_io_read (cred=0x8051400, data=0x134bd5c, 
    datalen=0x134bd60, offset=-1, maxread=2)
    at
/home/buildd/build/chroot-sid/home/buildd/byhand/hurd/./libdiskfs/io-read.c:95
#11 0x0105a4b5 in _Xio_read (InHeadP=0x134be70, OutHeadP=0x134de80)
    at ioServer.c:234
#12 0x01058baf in diskfs_io_server (InHeadP=0x1f, OutHeadP=0xffffffe7)
    at ioServer.c:2005
#13 0x010489dc in diskfs_demuxer (inp=0x134be70, outp=0x134de80)
    at
/home/buildd/build/chroot-sid/home/buildd/byhand/hurd/./libdiskfs/demuxer.c:33
#14 0x010c0163 in internal_demuxer (inp=0x134be70, outheadp=0x134de80)
    at
/home/buildd/build/chroot-sid/home/buildd/byhand/hurd/./libports/manage-multithread.c:101
#15 0x010efe16 in __mach_msg_server_timeout (demux=0x134ff38, max_size=8192, 
    rcv_name=20, option=2048, timeout=0) at msgserver.c:109
#16 0x010bfeb0 in thread_function (master=1)
    at
/home/buildd/build/chroot-sid/home/buildd/byhand/hurd/./libports/manage-multithread.c:136
#17 0x010bffc7 in ports_manage_port_operations_multithread (bucket=0x8050050,

    demuxer=0x804a038 <diskfs_demuxer@plt>, hook=0)
    at
/home/buildd/build/chroot-sid/home/buildd/byhand/hurd/./libports/manage-multithread.c:164
#18 0x01056236 in master_thread_function (demuxer=0x804a038)
    at
/home/buildd/build/chroot-sid/home/buildd/byhand/hurd/./libdiskfs/init-first.c:37
#19 0x010bb058 in cthread_body (self=0x80502b0)
    at
/home/buildd/build/chroot-sid/home/buildd/byhand/hurd/./libthreads/cthreads.c:300





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