On 2020-09-17 12:05 p.m., Konrad Rzeszutek Wilk wrote:
On Wed, Sep 16, 2020 at 02:51:06PM -0600, Thomas Tai wrote:
When booting the kernel v5.9-rc4 on a VM, the kernel would panic when
printing a warning message in swiotlb_map(). The dev->dma_mask must not
be a NULL pointer when call
On 2020-09-17 12:44 p.m., Christoph Hellwig wrote:
Thanks,
applied to the dma-mapping for-next tree.
Thank you, Christoph for suggesting and applying the fix.
Thomas
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xbe/0x120
__x64_sys_finit_module+0x1a/0x20
do_syscall_64+0x38/0x50
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Signed-off-by: Thomas Tai
---
include/linux/dma-direct.h | 3 ---
kernel/dma/mapping.c | 11 +++
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/include/linux/dma-direct.h
On 2020-09-15 11:09 a.m., Christoph Hellwig wrote:
On Tue, Sep 15, 2020 at 10:40:39AM -0400, Thomas Tai wrote:
+++ b/include/linux/dma-direct.h
@@ -62,9 +62,6 @@ static inline bool dma_capable(struct device *dev, dma_addr_t
addr, size_t size,
{
dma_addr_t end = addr + size - 1
On 2020-09-15 11:09 a.m., Christoph Hellwig wrote:
On Tue, Sep 15, 2020 at 10:40:39AM -0400, Thomas Tai wrote:
+++ b/include/linux/dma-direct.h
@@ -62,9 +62,6 @@ static inline bool dma_capable(struct device *dev, dma_addr_t
addr, size_t size,
{
dma_addr_t end = addr + size - 1
On 2020-09-15 10:26 a.m., Christoph Hellwig wrote:
On Tue, Sep 15, 2020 at 10:11:51AM -0400, Thomas Tai wrote:
On 2020-09-15 10:07 a.m., Christoph Hellwig wrote:
On Tue, Sep 15, 2020 at 08:03:14AM -0600, Thomas Tai wrote:
When booting the kernel v5.9-rc4 on a VM, the kernel would panic
On 2020-09-15 10:07 a.m., Christoph Hellwig wrote:
On Tue, Sep 15, 2020 at 08:03:14AM -0600, Thomas Tai wrote:
When booting the kernel v5.9-rc4 on a VM, the kernel would panic when
printing a warning message in swiotlb_map(). It is because dev->dma_mask
can potentially be a null poin
do_sys_finit_module+0xbe/0x120
? __do_sys_finit_module+0xbe/0x120
__x64_sys_finit_module+0x1a/0x20
do_syscall_64+0x38/0x50
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Signed-off-by: Thomas Tai
---
include/linux/dma-direct.h | 2 +-
kernel/dma/swiotlb.c | 2 +-
2 files changed, 2 inserti
Hello,
I had a similiar panic when booting an ARM VM with kernel v5.9-rc1. git
bisect identified following bad commit. After reverting the bad commit,
the VM boot ok. Maybe we should look into the following commit.
d323bb44e4d23802eb25d13de1f93f2335bd60d0 is the first bad commit
commit
