On 12/1/20 2:56 PM, Mike Rapoport wrote: > (added Jens) > > On Tue, Dec 01, 2020 at 01:16:05PM +0100, John Paul Adrian Glaubitz wrote: >> Hi Mike! >> >> On 12/1/20 1:10 PM, Mike Rapoport wrote: >>> On Tue, Dec 01, 2020 at 12:35:09PM +0100, John Paul Adrian Glaubitz wrote: >>>> Hi Mike! >>>> >>>> On 12/1/20 11:29 AM, Mike Rapoport wrote: >>>>> These changes are in linux-mm tree (https://www.ozlabs.org/~akpm/mmotm/ >>>>> with a mirror at https://github.com/hnaz/linux-mm) >>>>> >>>>> I beleive they will be coming in 5.11. >>>> >>>> Just pulled from that tree and gave it a try, it actually fails to build: >>>> >>>> LDS arch/ia64/kernel/vmlinux.lds >>>> AS arch/ia64/kernel/entry.o >>>> arch/ia64/kernel/entry.S: Assembler messages: >>>> arch/ia64/kernel/entry.S:710: Error: Operand 2 of `and' should be a general register >>>> arch/ia64/kernel/entry.S:710: Error: qualifying predicate not followed by instruction >>>> arch/ia64/kernel/entry.S:848: Error: Operand 2 of `and' should be a general register >>>> arch/ia64/kernel/entry.S:848: Error: qualifying predicate not followed by instruction >>>> GEN usr/initramfs_data.cpio >>>> make[1]: *** [scripts/Makefile.build:364: arch/ia64/kernel/entry.o] Error 1 >>>> make: *** [Makefile:1797: arch/ia64/kernel] Error 2 >>>> make: *** Waiting for unfinished jobs.... >>>> CC init/do_mounts_initrd.o >>>> SHIPPED usr/initramfs_inc_data >>>> AS usr/initramfs_data.o >>> >>> Hmm, it was buidling fine with v5.10-rc2-mmotm-2020-11-07-21-40. >>> I'll try to see what could cause this. >>> >>> Do you build with defconfig or do you use a custom config? >> >> That's with "localmodconfig", see attached configuration file. > > Thanks. > It seems that the recent addition of TIF_NOTIFY_SIGNAL to ia64 in > linux-next caused the issue. Can you please try the below patch? > > From c4d06cf1c2938e6b2302e7ed0be95c3401181ebb Mon Sep 17 00:00:00 2001 > From: Mike Rapoport <rppt@xxxxxxxxxxxxx> > Date: Tue, 1 Dec 2020 15:40:28 +0200 > Subject: [PATCH] ia64: fix TIF_NOTIFY_SIGNAL implementation > > * Replace wrong spelling of TIF_SIGNAL_NOTIFY with the correct > TIF_NOTIFY_SIGNAL > * Remove mistyped plural in test_thread_flag() call in > process::do_notify_resume_user() > * Use number 5 for TIF_NOTIFY_SIGNAL as 7 is too big and assembler is not > happy: > > AS arch/ia64/kernel/entry.o > arch/ia64/kernel/entry.S: Assembler messages: > arch/ia64/kernel/entry.S:710: Error: Operand 2 of `and' should be an 8-bit integer (-128-127) > arch/ia64/kernel/entry.S:710: Error: qualifying predicate not followed by instruction > > Reported-by: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx> > Fixes: bbb026da151c ("ia64: add support for TIF_NOTIFY_SIGNAL") > Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx> > --- > > The Fixes tag is based on the commit in next-20201201, I'm not 100% sure > it is stable > > arch/ia64/include/asm/thread_info.h | 4 ++-- > arch/ia64/kernel/process.c | 2 +- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h > index 759d7d68a5f2..51d20cb37706 100644 > --- a/arch/ia64/include/asm/thread_info.h > +++ b/arch/ia64/include/asm/thread_info.h > @@ -103,8 +103,8 @@ struct thread_info { > #define TIF_SYSCALL_TRACE 2 /* syscall trace active */ > #define TIF_SYSCALL_AUDIT 3 /* syscall auditing active */ > #define TIF_SINGLESTEP 4 /* restore singlestep on return to user mode */ > +#define TIF_NOTIFY_SIGNAL 5 /* signal notification exist */ > #define TIF_NOTIFY_RESUME 6 /* resumption notification requested */ > -#define TIF_NOTIFY_SIGNAL 7 /* signal notification exist */ > #define TIF_MEMDIE 17 /* is terminating due to OOM killer */ > #define TIF_MCA_INIT 18 /* this task is processing MCA or INIT */ > #define TIF_DB_DISABLED 19 /* debug trap disabled for fsyscall */ > @@ -116,7 +116,7 @@ struct thread_info { > #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) > #define _TIF_SYSCALL_TRACEAUDIT (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP) > #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) > -#define _TIF_SIGNAL_NOTIFY (1 << TIF_SIGNAL_NOTIFY) > +#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL) > #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) > #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) > #define _TIF_MCA_INIT (1 << TIF_MCA_INIT) > diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c > index 468525fc64e0..ee394abcc03e 100644 > --- a/arch/ia64/kernel/process.c > +++ b/arch/ia64/kernel/process.c > @@ -172,7 +172,7 @@ do_notify_resume_user(sigset_t *unused, struct sigscratch *scr, long in_syscall) > > /* deal with pending signal delivery */ > if (test_thread_flag(TIF_SIGPENDING) || > - test_thread_flags(TIF_NOTIFY_SIGNAL)) { > + test_thread_flag(TIF_NOTIFY_SIGNAL)) { > local_irq_enable(); /* force interrupt enable */ > ia64_do_signal(scr, in_syscall); > } > This fixes the issue for me. Tested-by: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx> Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@xxxxxxxxxx `. `' Freie Universitaet Berlin - glaubitz@xxxxxxxxxxxxxxxxxxx `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
