d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Don't dump core into a partition that is too small for it.

Browse Source 
If we do, we usually wrote backwareds into the proceeding partititon
which is usually the root partition.
This commit is contained in:
julian 2002-12-16 23:04:54 +00:00
parent 1f7478c270
commit 168664d0ec
2 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sys/amd64/amd64/dump_machdep.c
View File

@ -75,6 +75,15 @@ dumpsys(struct dumperinfo *di)
strncpy(kdh.panicstring, panicstr, sizeof kdh.panicstring);
kdh.parity = kerneldump_parity(&kdh);
if (di->mediasize <
((Maxmem * (off_t)PAGE_SIZE) + /* Memory to save */
(sizeof kdh * 2) + /* header + trailer */
(64*1024))) { /* Room to leave untouched */
/* at partition head. */
/* (an arbitrary amount). */
printf("\nDump failed. Partition too small.\n");
return;
}
dumplo = di->mediaoffset + di->mediasize - Maxmem * (off_t)PAGE_SIZE;
dumplo -= sizeof kdh * 2;
i = di->dumper(di->priv, &kdh, 0, dumplo, sizeof kdh);

9
sys/i386/i386/dump_machdep.c
View File

@ -75,6 +75,15 @@ dumpsys(struct dumperinfo *di)
strncpy(kdh.panicstring, panicstr, sizeof kdh.panicstring);
kdh.parity = kerneldump_parity(&kdh);
if (di->mediasize <
((Maxmem * (off_t)PAGE_SIZE) + /* Memory to save */
(sizeof kdh * 2) + /* header + trailer */
(64*1024))) { /* Room to leave untouched */
/* at partition head. */
/* (an arbitrary amount). */
printf("\nDump failed. Partition too small.\n");
return;
}
dumplo = di->mediaoffset + di->mediasize - Maxmem * (off_t)PAGE_SIZE;
dumplo -= sizeof kdh * 2;
i = di->dumper(di->priv, &kdh, 0, dumplo, sizeof kdh);