Buildresult: powerpc-next/x86_64-allnoconfig/x86_64-gcc4.6 built on May 18 2018, 03:20

kisskb

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Status:	OK
Date/Time:	May 18 2018, 03:20
Duration:	0:00:22.965861
Builder:	ka1
Revision:	powerpc/powernv: Fix opal_event_shutdown() called with interrupts disabled (`c0beffc4f4c658fde86d52c837e784326e9cc875)`
Target:	powerpc-next/x86_64-allnoconfig/x86_64-gcc4.6
Branch:	powerpc-next
Compiler:	x86_64-gcc4.6 (x86_64-linux-gcc (GCC) 4.6.3)
Config:	allnoconfig (download)
Log:	Download original Possible warnings (3) kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/apic/io_apic.c:1033:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/e820.c:650:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify c0beffc4f4c658fde86d52c837e784326e9cc875^{commit} # git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git next-test # git rev-parse -q --verify c0beffc4f4c658fde86d52c837e784326e9cc875^{commit} c0beffc4f4c658fde86d52c837e784326e9cc875 # git checkout -q -f -B kisskb c0beffc4f4c658fde86d52c837e784326e9cc875 # git clean -qxdf # < git log -1 # commit c0beffc4f4c658fde86d52c837e784326e9cc875 # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Tue May 15 01:59:46 2018 +1000 # # powerpc/powernv: Fix opal_event_shutdown() called with interrupts disabled # # A kernel crash in process context that calls emergency_restart from # panic will end up calling opal_event_shutdown with interrupts disabled # but not in interrupt. This causes a sleeping function to be called # which gives the following warning with sysrq+c: # # Rebooting in 10 seconds.. # BUG: sleeping function called from invalid context at kernel/locking/mutex.c:238 # in_atomic(): 0, irqs_disabled(): 1, pid: 7669, name: bash # CPU: 20 PID: 7669 Comm: bash Tainted: G D W 4.17.0-rc5+ #3 # Call Trace: # dump_stack+0xb0/0xf4 (unreliable) # ___might_sleep+0x174/0x1a0 # mutex_lock+0x38/0xb0 # __free_irq+0x68/0x460 # free_irq+0x70/0xc0 # opal_event_shutdown+0xb4/0xf0 # opal_shutdown+0x24/0xa0 # pnv_shutdown+0x28/0x40 # machine_shutdown+0x44/0x60 # machine_restart+0x28/0x80 # emergency_restart+0x30/0x50 # panic+0x2a0/0x328 # oops_end+0x1ec/0x1f0 # bad_page_fault+0xe8/0x154 # handle_page_fault+0x34/0x38 # --- interrupt: 300 at sysrq_handle_crash+0x44/0x60 # LR = __handle_sysrq+0xfc/0x260 # flag_spec.62335+0x12b844/0x1e8db4 (unreliable) # __handle_sysrq+0xfc/0x260 # write_sysrq_trigger+0xa8/0xb0 # proc_reg_write+0xac/0x110 # __vfs_write+0x6c/0x240 # vfs_write+0xd0/0x240 # ksys_write+0x6c/0x110 # # Fixes: 9f0fd0499d30 ("powerpc/powernv: Add a virtual irqchip for opal events") # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < git log --format=%s --max-count=1 c0beffc4f4c658fde86d52c837e784326e9cc875 # < make -s -j 48 ARCH=x86_64 O=/kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- allnoconfig # make -s -j 48 ARCH=x86_64 O=/kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/x86/kernel/apic/io_apic.c: In function 'mp_map_pin_to_irq': /kisskb/src/arch/x86/kernel/apic/io_apic.c:1033:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap': /kisskb/src/arch/x86/kernel/e820.c:650:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64 # Build took: 0:00:22.965861

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