Re: Virtualbox + kgdb: Can't see vmlinux symbols

On Fri, 16 Jun 2017 13:24:58 -0700, Kamran Khan said: > This is happening only with kernel 4.8+. > > When I compile kernel 4.4 with a stock Ubuntu Xenial .config, symbols > appear just fine. > > When I compile kernel 4.8/4.10 with Yakkety/Zesty stock configs the > symbols disappear. What happens

Re: Virtualbox + kgdb: Can't see vmlinux symbols

This is happening only with kernel 4.8+. When I compile kernel 4.4 with a stock Ubuntu Xenial .config, symbols appear just fine. When I compile kernel 4.8/4.10 with Yakkety/Zesty stock configs the symbols disappear. On Wed, Jun 14, 2017 at 4:58 PM, Kamran Khan wrote: > I

Re: ./include/linux/err.h:35:16: warning: dereference of noderef expression

On Tue, Jun 13, 2017 at 11:55:26AM +0200, Charlemagne Lasse wrote: > Hi, > > I have following code which generates a warning when compiling with "make > C=1". > > ~~~ > struct task_struct *kthread; > kthread = kthread_create(x, y, "z"); > if (IS_ERR(kthread)) { > ~~~ > >

./include/linux/err.h:35:16: warning: dereference of noderef expression

Hi, I have following code which generates a warning when compiling with "make C=1". ~~~ struct task_struct *kthread; kthread = kthread_create(x, y, "z"); if (IS_ERR(kthread)) { ~~~ The warning is ./include/linux/err.h:35:16: warning: dereference of noderef expression

Re: Virtualbox + kgdb: Can't see vmlinux symbols

Disabling CONFIG_RANDOMIZE_MEMORY did not help. Disabled CONFIG_RANDOMIZE_BASE as well and the symbols came up. The weird thing is that CONFIG_RANDOMIZE_BASE is enabled on Xenial (4.4) kernel as well, but somehow having it enabled on Zesty (4.10) kernel throws off kgdb. Thanks, Kamran. On Fri,

Re: Virtualbox + kgdb: Can't see vmlinux symbols

The debug symbols are on for all of them, and gdb *does* load the symbols. I have a suspicion that KASLR that was introduced around 4.7 might be the culprit here. CONFIG_RANDOMIZE_MEMORY is an option that's not present in the Xenial config. Anyone here has attached kgdb to 4.8/4.10? Thanks,

Re: VFS: mount_bdev and fill_super

On 16-Jun-2017 11:44 AM, "Shrikant Giridhar" wrote: > I just had a quick look at mount_bdev() code for Linux v3.15, mount_bdev() > can return only root dentry or error. I'm sorry I should have been clearer. I was referring to the documentation mount() where it says

Re: VFS: mount_bdev and fill_super

> I just had a quick look at mount_bdev() code for Linux v3.15, mount_bdev() > can return only root dentry or error. I'm sorry I should have been clearer. I was referring to the documentation mount() where it says that the call can return something other than the root dentry. More specifically,

Re: Struct sk_buff_head

Hi, On 06/07/2017 09:36 PM, wiktoria.lewicka wrote: > I read code from file include/linux/skbuff.h and I have question about > sk_buff_head structure. > [...] > Is this union replace sk_buff_head structure? > I didn`t found any field in sk_buff, which may use sk_buff_head, [...] As I can see