Bug 1426661
| Summary: | BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:915 | ||||||||
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| Product: | Red Hat Enterprise Linux 7 | Reporter: | John Kacur <jkacur> | ||||||
| Component: | kernel-rt | Assignee: | John Kacur <jkacur> | ||||||
| kernel-rt sub component: | Other | QA Contact: | Jiri Kastner <jkastner> | ||||||
| Status: | CLOSED ERRATA | Docs Contact: | |||||||
| Severity: | medium | ||||||||
| Priority: | medium | CC: | bhu, jshortt, lgoncalv, williams | ||||||
| Version: | 7.4 | ||||||||
| Target Milestone: | rc | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | Unspecified | ||||||||
| OS: | Unspecified | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2017-08-01 19:00:29 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Bug Depends On: | |||||||||
| Bug Blocks: | 1353018, 1410158 | ||||||||
| Attachments: |
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Verify bug exists fix is in init/Kconfig config SLUB_CPU_PARTIAL default y - depends on SLUB && SMP + depends on SLUB && SMP && !PREEMPT_RT_FULL but in our version we only have depends on SLUB Created attachment 1262528 [details]
slub: Disable SLUB_CPU_PARTIAL
Created attachment 1262536 [details]
slub: Disable SLUB_CPU_PARTIAL
Fixed with 0d843ade75c55b17cc484224ef370bda62df1059 Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2017:2077 Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2017:2077 |
BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:915 |in_atomic(): 1, irqs_disabled(): 0, pid: 87, name: rcuop/7 |1 lock held by rcuop/7/87: | #0: (rcu_callback){......}, at: [<ffffffff8112c76a>] rcu_nocb_kthread+0x1ca/0x5d0 |Preemption disabled at:[<ffffffff811eebd9>] put_cpu_partial+0x29/0x220 | |CPU: 0 PID: 87 Comm: rcuop/7 Tainted: G W 4.0.0-rt0+ #477 |Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 | 000000000007a9fc ffff88013987baf8 ffffffff817441c7 0000000000000007 | 0000000000000000 ffff88013987bb18 ffffffff810eee51 0000000000000000 | ffff88013fc10200 ffff88013987bb48 ffffffff8174a1c4 000000000007a9fc |Call Trace: | [<ffffffff817441c7>] dump_stack+0x4f/0x90 | [<ffffffff810eee51>] ___might_sleep+0x121/0x1b0 | [<ffffffff8174a1c4>] rt_spin_lock+0x24/0x60 | [<ffffffff811a689a>] __free_pages_ok+0xaa/0x540 | [<ffffffff811a729d>] __free_pages+0x1d/0x30 | [<ffffffff811eddd5>] __free_slab+0xc5/0x1e0 | [<ffffffff811edf46>] free_delayed+0x56/0x70 | [<ffffffff811eecfd>] put_cpu_partial+0x14d/0x220 | [<ffffffff811efc98>] __slab_free+0x158/0x2c0 | [<ffffffff811f0021>] kmem_cache_free+0x221/0x2d0 | [<ffffffff81204d0c>] file_free_rcu+0x2c/0x40 | [<ffffffff8112c7e3>] rcu_nocb_kthread+0x243/0x5d0 | [<ffffffff810e951c>] kthread+0xfc/0x120 | [<ffffffff8174abc8>] ret_from_fork+0x58/0x90