When I run 'BackupPC_migrateV3toV4' (v4.3.0), I get occasional errors
of form:
setVarInt botch: got negative argument -1015087104; setting to 0
NOTE: that the error is rare -- I migrated about 2 million pool files
repeated across 100 backups... yet I only encountered a couple of
dozen such errors.
Note the error seems to be generated in bpc_attrib.c in the following
subroutine:
/*
* Write variable-length unsigned integer in 7 bit chunks, LSB first
*/
static void setVarInt(uchar **bufPP, uchar *bufEnd, int64 value)
{
uchar *bufP = *bufPP;
if ( value < 0 ) {
bpc_logErrf("setVarInt botch: got negative argument %ld;
setting to 0\n", (long int)value);
value = 0;
}
do {
uchar c = value & 0x7f;
value >>= 7;
if ( value ) c |= 0x80;
if ( bufP < bufEnd ) {
*bufP++ = c;
} else {
bufP++;
}
} while ( value );
*bufPP = bufP;
}
------------------------------------------
Here is some context from the (verbose) output of
BackupPC_migrateV3toV4:
Wrote file
cache_http%3A%2F%2Fi.ebayimg.com%2F00%2Fs%2FMTc2WDE3Ng%3D%3D%2F%24%28KGrHqNHJE%21FCdYT6%21EDBQt9otljTQ%7E%7E60_57.PNG%3Fset_id%3D4002:
type = 0, mode = 0100444, uid/gid = 490/490, size = 49237, inode = 231882,
nlinks = 0, digest = 0x0cb6af..., bufUsed = 636
Wrote file
cache_http%3A%2F%2Fi.ebayimg.com%2F00%2Fs%2FMjExWDMwNg%3D%3D%2Fz%2Fo5UAAOxyMQtSaXHu%2F%24%28KGrHqZHJBoFJfGTBIQCBS%2C%28HuG2FQ%7E%7E60_57.PNG%3Fset_id%3D4002:
type = 0, mode = 0100444, uid/gid = 490/490, size = 10548, inode = 231885,
nlinks = 0, digest = 0x79a2c2..., bufUsed = 810
setVarInt botch: got negative argument -1015087104; setting to 0
Wrote file
cache_http%3A%2F%2Fi.ebayimg.com%2F00%2Fs%2FMTE3WDMxNA%3D%3D%2Fz%2FH7sAAOxyRNJScAaq%2F%24%28KGrHqF%2C%21k8FJlR29NWMBSc%21%2Cp7SSw%7E%7E60_57.PNG%3Fset_id%3D4002:
type = 0, mode = 00, uid/gid = 0/0, size = 0, inode = 231883, nlinks = 0,
digest = 0x7b428e..., bufUsed = 1006
Wrote file
cache_http%3A%2F%2Fi.ebayimg.com%2F00%2Fs%2FMzMxWDQwMA%3D%3D%2Fz%2FFMgAAOxydgZTI2GK%2F%24_1.JPG%3Fset_id%3D2:
type = 0, mode = 0100444, uid/gid = 490/490, size = 17859, inode = 231884,
nlinks = 0, digest = 0x99c51e..., bufUsed = 1197
Wrote file
cache_http%3A%2F%2Fi.ebayimg.com%2F00%2Fs%2FMTc2WDE3Ng%3D%3D%2F%24T2eC16ZHJHIE9nyseyoZBQt9oyl1o%21%7E%7E60_57.PNG%3Fset_id%3D4002:
type = 0, mode = 0100444, uid/gid = 490/490, size = 15206, inode = 231881,
nlinks = 0, digest = 0x97c615..., bufUsed = 1345
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