f2d9136133
Here is a patch for ehca to use proper flag, ie. GFP_ATOMIC resp. GFP_KERNEL, when calling get_zeroed_page() to prevent "Bug: scheduling while atomic...". This error does not cause a kernel panic but makes ipoib un-usable afterwards. It is reproducible on 2.6.20-rc4 if one does ifconfig down during a flood ping test. I have not observed this error in earlier releases incl. 2.6.20-rc1. This error occurs when a qp event/irq is received and ehca event handler allocates a control block/page to obtain HCA error data block. Use of GFP_ATOMIC when in interrupt context prevents this issue. Signed-off-by Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com> |
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| .. | ||
| ehca_av.c | ||
| ehca_classes_pSeries.h | ||
| ehca_classes.h | ||
| ehca_cq.c | ||
| ehca_eq.c | ||
| ehca_hca.c | ||
| ehca_irq.c | ||
| ehca_irq.h | ||
| ehca_iverbs.h | ||
| ehca_main.c | ||
| ehca_mcast.c | ||
| ehca_mrmw.c | ||
| ehca_mrmw.h | ||
| ehca_pd.c | ||
| ehca_qes.h | ||
| ehca_qp.c | ||
| ehca_reqs.c | ||
| ehca_sqp.c | ||
| ehca_tools.h | ||
| ehca_uverbs.c | ||
| hcp_if.c | ||
| hcp_if.h | ||
| hcp_phyp.c | ||
| hcp_phyp.h | ||
| hipz_fns_core.h | ||
| hipz_fns.h | ||
| hipz_hw.h | ||
| ipz_pt_fn.c | ||
| ipz_pt_fn.h | ||
| Kconfig | ||
| Makefile | ||