On Thu, Feb 04, 2021 at 11:51:44AM -0800, Ivan Babrou wrote:
> > .macro FUNC_SAVE
> > #the number of pushes must equal STACK_OFFSET
> > + push%rbp
> > + mov %rsp, %rbp
> > push%r12
> > push%r13
> > push%r14
> > @@ -271,12 +273,14
On Wed, Feb 3, 2021 at 4:17 PM Josh Poimboeuf wrote:
>
> On Wed, Feb 03, 2021 at 03:30:35PM -0800, Ivan Babrou wrote:
> > > > > Can you recreate with this patch, and add "unwind_debug" to the
> > > > > cmdline?
> > > > > It will spit out a bunch of stack data.
> > > >
> > > > Here's the three I'm
On Wed, Feb 3, 2021 at 7:10 PM Josh Poimboeuf wrote:
> This line gives a big clue:
>
> [160676.608966][C4] RIP: 0010:0xc17d814c
>
> That address, without a function name, most likely means that it was
> running in some generated code (mostly likely BPF) when it got
> interrupted.
W
On Wed, Feb 03, 2021 at 09:46:55AM -0800, Ivan Babrou wrote:
> > Can you pretty please not line-wrap console output? It's unreadable.
>
> GMail doesn't make it easy, I'll send a link to a pastebin next time.
> Let me know if you'd like me to regenerate the decoded stack.
Not my problem that you c
On Wed, Feb 03, 2021 at 09:44:48PM -0500, Steven Rostedt wrote:
> > > [ 128.441287][C0] RIP: 0010:skcipher_walk_next
> > > (crypto/skcipher.c:322 crypto/skcipher.c:384)
>
> Why do we have an RIP in skcipher_walk_next, if its the unwinder that
> had a bug? Or are they related?
>
> Or did skci
On Tue, 2 Feb 2021 19:09:44 -0800
Ivan Babrou wrote:
> On Thu, Jan 28, 2021 at 7:35 PM Ivan Babrou wrote:
> >
> > Hello,
> >
> > We've noticed the following regression in Linux 5.10 branch:
> >
> > [ 128.367231][C0]
> > ==
> >
On Wed, Feb 03, 2021 at 04:52:42PM -0800, Ivan Babrou wrote:
> We also have the following stack that doesn't touch any crypto:
>
> * https://gist.github.com/bobrik/40e2559add2f0b26ae39da30dc451f1e
Can you also run this through decode_stacktrace.sh?
Both are useful (until I submit a fix for decod
On Wed, Feb 3, 2021 at 4:17 PM Josh Poimboeuf wrote:
>
> On Wed, Feb 03, 2021 at 03:30:35PM -0800, Ivan Babrou wrote:
> > > > > Can you recreate with this patch, and add "unwind_debug" to the
> > > > > cmdline?
> > > > > It will spit out a bunch of stack data.
> > > >
> > > > Here's the three I'm
On Wed, Feb 03, 2021 at 03:30:35PM -0800, Ivan Babrou wrote:
> > > > Can you recreate with this patch, and add "unwind_debug" to the cmdline?
> > > > It will spit out a bunch of stack data.
> > >
> > > Here's the three I'm building:
> > >
> > > * https://github.com/bobrik/linux/tree/ivan/static-cal
On Wed, Feb 3, 2021 at 3:28 PM Josh Poimboeuf wrote:
>
> On Wed, Feb 03, 2021 at 02:41:53PM -0800, Ivan Babrou wrote:
> > On Wed, Feb 3, 2021 at 11:05 AM Josh Poimboeuf wrote:
> > >
> > > On Wed, Feb 03, 2021 at 09:46:55AM -0800, Ivan Babrou wrote:
> > > > > Can you pretty please not line-wrap co
On Wed, Feb 03, 2021 at 02:41:53PM -0800, Ivan Babrou wrote:
> On Wed, Feb 3, 2021 at 11:05 AM Josh Poimboeuf wrote:
> >
> > On Wed, Feb 03, 2021 at 09:46:55AM -0800, Ivan Babrou wrote:
> > > > Can you pretty please not line-wrap console output? It's unreadable.
> > >
> > > GMail doesn't make it e
On Wed, Feb 3, 2021 at 11:05 AM Josh Poimboeuf wrote:
>
> On Wed, Feb 03, 2021 at 09:46:55AM -0800, Ivan Babrou wrote:
> > > Can you pretty please not line-wrap console output? It's unreadable.
> >
> > GMail doesn't make it easy, I'll send a link to a pastebin next time.
> > Let me know if you'd l
On Wed, Feb 03, 2021 at 09:46:55AM -0800, Ivan Babrou wrote:
> > Can you pretty please not line-wrap console output? It's unreadable.
>
> GMail doesn't make it easy, I'll send a link to a pastebin next time.
> Let me know if you'd like me to regenerate the decoded stack.
>
> > > edfd9b7838ba5e47f
> Can you pretty please not line-wrap console output? It's unreadable.
GMail doesn't make it easy, I'll send a link to a pastebin next time.
Let me know if you'd like me to regenerate the decoded stack.
> > edfd9b7838ba5e47f19ad8466d0565aba5c59bf0 is the first bad commit
> > commit edfd9b7838ba5e
On Tue, Feb 02, 2021 at 07:09:44PM -0800, Ivan Babrou wrote:
> On Thu, Jan 28, 2021 at 7:35 PM Ivan Babrou wrote:
> > ==
> > [ 128.368523][C0] BUG: KASAN: stack-out-of-bounds in
> > unwind_next_frame (arch/x86/kernel/unwind_orc.
On Thu, Jan 28, 2021 at 7:35 PM Ivan Babrou wrote:
>
> Hello,
>
> We've noticed the following regression in Linux 5.10 branch:
>
> [ 128.367231][C0]
> ==
> [ 128.368523][C0] BUG: KASAN: stack-out-of-bounds in
> unwind_next_f
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