Re: WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 set_precision+0x84/0x90

2018-11-14 Thread Qian Cai
On Tue, 2018-11-13 at 14:23 -0500, Steven Rostedt wrote: > On Tue, 13 Nov 2018 13:58:18 -0500 > Qian Cai wrote: > > > > Care to print the len and name parameters before this line?   > > > > len = 60612; name = > > How big are pages on arm64? Because we shouldn't get to this path if # getconf PA

Re: WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 set_precision+0x84/0x90

2018-11-14 Thread Petr Mladek
On Wed 2018-11-14 11:38:19, Andy Shevchenko wrote: > On Wed, Nov 14, 2018 at 12:05:12AM +0100, Petr Mladek wrote: > > On Tue 2018-11-13 14:23:17, Steven Rostedt wrote: > > > On Tue, 13 Nov 2018 13:58:18 -0500 > > > Qian Cai wrote: > > > > > > > > Care to print the len and name parameters before t

Re: WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 set_precision+0x84/0x90

2018-11-14 Thread Andy Shevchenko
On Wed, Nov 14, 2018 at 12:05:12AM +0100, Petr Mladek wrote: > On Tue 2018-11-13 14:23:17, Steven Rostedt wrote: > > On Tue, 13 Nov 2018 13:58:18 -0500 > > Qian Cai wrote: > > > > > > Care to print the len and name parameters before this line? > > > len = 60612; name = > > > > How big are page

Re: WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 set_precision+0x84/0x90

2018-11-13 Thread Petr Mladek
On Tue 2018-11-13 14:23:17, Steven Rostedt wrote: > On Tue, 13 Nov 2018 13:58:18 -0500 > Qian Cai wrote: > > > > Care to print the len and name parameters before this line? > > len = 60612; name = > > How big are pages on arm64? Because we shouldn't get to this path if > the string is bigger t

Re: WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 set_precision+0x84/0x90

2018-11-13 Thread Steven Rostedt
On Tue, 13 Nov 2018 13:58:18 -0500 Qian Cai wrote: > > Care to print the len and name parameters before this line? > len = 60612; name = How big are pages on arm64? Because we shouldn't get to this path if the string is bigger than PAGE_SIZE. But I know that on PPC64, PAGE_SIZE can be 64K, and

Re: WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 set_precision+0x84/0x90

2018-11-13 Thread Qian Cai
d%d%d%s%s%s%s%d %s%s%d%s%d%s%d%s%d%d%d%d%s%d%d%d%s%d%d%d%d%s%s%d%s%s%d%d%d%s%d%s%d%d%d%d%d%d%s%d %s%s%d%d%s%d%d%d%s%s%d%s%d%s%d%s%d%d%s%d%s%s%s%s%s%d%s%s%d%d%d%s%s%d%d%s%s%d%s%d %s%d%s%s%s% [  833.044728] [ cut here ]------------ [  833.137184] precision 60612 too large > > &

Re: WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 set_precision+0x84/0x90

2018-11-13 Thread Andy Shevchenko
false alarm to ignore? > > > > [ 807.847370] precision 65525 too large > > [ 807.847449] WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 > > set_precision+0x84/0x90 > > [ 807.860161] Modules linked in: cast6_generic cast_common lrw bridge 8021q > > garp mrp

Re: WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 set_precision+0x84/0x90

2018-11-13 Thread Andy Shevchenko
like someone uses -EAGAIN as a parameter to printf(). Or rather this line if (!fs && (request_module("fs-%.*s", len, name) == 0)) { ... } Care to print the len and name parameters before this line? > [  807.847449] WARNING: CPU: 26 PID: 64391 at lib/vsprintf

Re: WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 set_precision+0x84/0x90

2018-11-13 Thread Geert Uytterhoeven
On Tue, Nov 13, 2018 at 5:57 PM Qian Cai wrote: > Running the trinity fuzzer with a non-root user on an aarch64 server with the > latest mainline (rc2) generated this. Is it just a false alarm to ignore? > > [ 807.847370] precision 65525 too large > [ 807.847449] WARNING: CPU: 2

WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 set_precision+0x84/0x90

2018-11-13 Thread Qian Cai
Running the trinity fuzzer with a non-root user on an aarch64 server with the latest mainline (rc2) generated this. Is it just a false alarm to ignore? [  807.847370] precision 65525 too large [  807.847449] WARNING: CPU: 26 PID: 64391 at lib/vsprintf.c:2193 set_precision+0x84/0x90 [  807.860161