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and subject line Bug#321655: fixed in powerpc-utils 1.1.3-17
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Date: Sat, 6 Aug 2005 19:51:20 +0200
From: Joerg Dorchain <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: nvsetenv and nvsetvol should sync nvram after changes
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Package: powerpc-utils
Version: 1.1.3-16
Tags: patch
Hi,
nvsetenv and nvsetvol can write to the nvram. The current generic_nvram
driver (2.6.12) has no special close function. The pmac_nvram driver can
only read or write whole nvram banks, so it allocates a ram buffer for
them.
This leads to the effect that the updated values can get lost, as
the changes are not written back to the physical nvram (happens e.g. on
an iBook G4)
The enclosed patch works around this problem from userspace by calling
the available ioctl for syncing the nvram explicitly.
Bye,
Joerg
--- nvsetenv.c.orig 2005-08-06 19:20:54.000000000 +0200
+++ nvsetenv.c 2005-08-06 19:31:54.000000000 +0200
@@ -14,6 +14,12 @@
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <asm/nvram.h>
+#ifndef IOC_NVRAM_SYNC
+#warning IOC_NVRAM_SYNC undefined -- update your headers
+#define IOC_NVRAM_SYNC _IO('p', 0x43)
+#endif
=20
#define NVSTART 0x1800 // Start of the NVRam OF partition
#define NVSIZE 0x800 // Size of of the NVRam
@@ -325,6 +331,7 @@
else
nvOld(ac, av, i, nvfd);
=20
+ (void) ioctl(nvfd, IOC_NVRAM_SYNC);
(void) close(nvfd);
exit(EXIT_SUCCESS);
}
--- nvsetvol.c.orig 2005-08-06 19:21:09.000000000 +0200
+++ nvsetvol.c 2005-08-06 19:33:23.000000000 +0200
@@ -15,6 +15,12 @@
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <asm/nvram.h>
+#ifndef IOC_NVRAM_SYNC
+#warning IOC_NVRAM_SYNC undefined -- update your headers
+#define IOC_NVRAM_SYNC _IO('p', 0x43)
+#endif
=20
typedef struct {
unsigned char sig;
@@ -99,6 +105,7 @@
die("error writing /dev/nvram");
printf("new volume is %d\n", buf[VOLADDR]);
}
+ ioctl(fd, IOC_NVRAM_SYNC);
close(fd);
return 0;
}
--- nvvideo.c.orig 2005-08-06 19:21:46.000000000 +0200
+++ nvvideo.c 2005-08-06 19:38:25.000000000 +0200
@@ -3,6 +3,12 @@
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <asm/nvram.h>
+#ifndef IOC_NVRAM_SYNC
+#warning IOC_NVRAM_SYNC undefined -- update your headers
+#define IOC_NVRAM_SYNC _IO('p', 0x43)
+#endif
=20
#define NVSTART 0x140f
#define NVSIZE 0x2
@@ -96,6 +102,7 @@
break;
}
=20
+ (void) ioctl(nvfd, IOC_NVRAM_SYNC);
(void) close(nvfd);
exit(EXIT_SUCCESS);
}
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From: Michael Schmitz <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
X-Katie: $Revision: 1.56 $
Subject: Bug#321655: fixed in powerpc-utils 1.1.3-17
Message-Id: <[EMAIL PROTECTED]>
Sender: Archive Administrator <[EMAIL PROTECTED]>
Date: Mon, 08 Aug 2005 06:02:07 -0700
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Source: powerpc-utils
Source-Version: 1.1.3-17
We believe that the bug you reported is fixed in the latest version of
powerpc-utils, which is due to be installed in the Debian FTP archive:
powerpc-utils_1.1.3-17.diff.gz
to pool/main/p/powerpc-utils/powerpc-utils_1.1.3-17.diff.gz
powerpc-utils_1.1.3-17.dsc
to pool/main/p/powerpc-utils/powerpc-utils_1.1.3-17.dsc
powerpc-utils_1.1.3-17_powerpc.deb
to pool/main/p/powerpc-utils/powerpc-utils_1.1.3-17_powerpc.deb
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [EMAIL PROTECTED],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Michael Schmitz <[EMAIL PROTECTED]> (supplier of updated powerpc-utils package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [EMAIL PROTECTED])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Format: 1.7
Date: Mon, 08 Aug 2005 14:40:34 +0200
Source: powerpc-utils
Binary: powerpc-utils
Architecture: source powerpc
Version: 1.1.3-17
Distribution: unstable
Urgency: low
Maintainer: Michael Schmitz <[EMAIL PROTECTED]>
Changed-By: Michael Schmitz <[EMAIL PROTECTED]>
Description:
powerpc-utils - Various utilities for Linux/PowerPC
Closes: 320566 321655
Changes:
powerpc-utils (1.1.3-17) unstable; urgency=low
.
* Fix for iBook G4 failure to save nvram data (as manifest by failure to
properly store the boot chime volume). Patch by Joerg Dorchain
<[EMAIL PROTECTED]>.
Closes: #321655, #320566.
Files:
4ea63ae06176a5055a47c82e79813f96 640 base required powerpc-utils_1.1.3-17.dsc
dd8e10fa8b09837e470cd73065db1ca6 26762 base required
powerpc-utils_1.1.3-17.diff.gz
1e474d861faa96e6eccc7d5c8e70421f 37674 base required
powerpc-utils_1.1.3-17_powerpc.deb
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