i386/134745: mmcsd.ko produce kernel panic
Alexandr
timon at masterhost.ru
Wed May 20 10:20:02 UTC 2009
>Number: 134745
>Category: i386
>Synopsis: mmcsd.ko produce kernel panic
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed May 20 10:20:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator: Alexandr
>Release: FreeBSD 8-CURRENT
>Organization:
.masterhost
>Environment:
FreeBSD tim 8.0-CURRENT FreeBSD 8.0-CURRENT #5: Wed May 20 00:38:30 MSD 2009 root at tim:/usr/obj/usr/src/sys/GENERIC i386
>Description:
Computer: Lenovo Thinkpad T61
Built-in card reader: sdhci0 at pci0:21:0:2: class=0x080500 card=0x20c817aa chip=0x08221180 rev=0x21 hdr=0x00
vendor = 'Ricoh Company, Ltd.'
device = 'R5C832, R5C843 SDA Standard Compliant SD Host Controller'
class = base peripheral
subclass = SD host controller
mmc.ko, mmcsd.ko, sdhci.ko loaded as mobules into kernel
Problem:
Kernel panic after insert SD-card to card reader slot:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0xffffffe8
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc0e42f7e
stack pointer = 0x28:0xc1820be4
frame pointer = 0x28:0x0
<...>
Stopped at mmcsd_attach+0xce: movl 0xffffffe8(%ebp),%eax
>How-To-Repeat:
Insert SD-card to hardware card controller
>Fix:
Patch attached with submission follows:
diff -u mmc.old/mmc.c mmc/mmc.c
--- mmc.old/mmc.c 2009-05-20 00:22:58.000000000 +0400
+++ mmc/mmc.c 2009-05-20 12:39:05.000000000 +0400
@@ -1448,7 +1448,7 @@
*(int *)result = ivar->csd.dsr_imp;
break;
case MMC_IVAR_MEDIA_SIZE:
- *(off_t *)result = ivar->sec_count;
+ *(int *)result = ivar->sec_count;
break;
case MMC_IVAR_RCA:
*(int *)result = ivar->rca;
diff -u mmc.old/mmcsd.c mmc/mmcsd.c
--- mmc.old/mmcsd.c 2009-05-20 00:22:58.000000000 +0400
+++ mmc/mmcsd.c 2009-05-20 12:44:21.000000000 +0400
@@ -137,7 +137,7 @@
d->d_drv1 = sc;
d->d_maxsize = 4*1024*1024; /* Maximum defined SD card AU size. */
d->d_sectorsize = mmc_get_sector_size(dev);
- d->d_mediasize = mmc_get_media_size(dev) * d->d_sectorsize;
+ d->d_mediasize = (off_t)mmc_get_media_size(dev) * d->d_sectorsize;
d->d_stripeoffset = 0;
d->d_stripesize = mmc_get_erase_sector(dev) * d->d_sectorsize;
d->d_unit = device_get_unit(dev);
Only in mmc: mmcsd.c~
diff -u mmc.old/mmcvar.h mmc/mmcvar.h
--- mmc.old/mmcvar.h 2009-05-20 00:22:58.000000000 +0400
+++ mmc/mmcvar.h 2009-05-20 12:39:05.000000000 +0400
@@ -79,7 +79,7 @@
__BUS_ACCESSOR(mmc, var, MMC, ivar, type)
MMC_ACCESSOR(dsr_imp, DSR_IMP, int)
-MMC_ACCESSOR(media_size, MEDIA_SIZE, off_t)
+MMC_ACCESSOR(media_size, MEDIA_SIZE, int)
MMC_ACCESSOR(rca, RCA, int)
MMC_ACCESSOR(sector_size, SECTOR_SIZE, int)
MMC_ACCESSOR(tran_speed, TRAN_SPEED, int)
>Release-Note:
>Audit-Trail:
>Unformatted:
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